From xen-users-bounces@lists.xenproject.org Thu Jul 08 18:41:20 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Thu, 08 Jul 2021 18:41:20 +0000 Received: from list by lists.xenproject.org with outflank-mailman.153286.283183 (Exim 4.92) (envelope-from ) id 1m1Ywe-0006Pl-GE; Thu, 08 Jul 2021 18:40:20 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 153286.283183; Thu, 08 Jul 2021 18:40:20 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1Ywe-0006Pd-Cg; Thu, 08 Jul 2021 18:40:20 +0000 Received: by outflank-mailman (input) for mailman id 153286; Thu, 08 Jul 2021 18:40:19 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1Ywc-0006PX-UM for xen-users@lists.xenproject.org; Thu, 08 Jul 2021 18:40:19 +0000 Received: from mail-io1-xd2e.google.com (unknown [2607:f8b0:4864:20::d2e]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 9a5bc1bb-155c-4770-a1fb-78500e161c04; Thu, 08 Jul 2021 18:40:18 +0000 (UTC) Received: by mail-io1-xd2e.google.com with SMTP id u7so9437223ion.3 for ; Thu, 08 Jul 2021 11:40:17 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 9a5bc1bb-155c-4770-a1fb-78500e161c04 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=hbOBYLLgS3nk+eaQ3eLQRnTqzBqb7U4sY9IlPFvxRBo=; b=PIVv1HtmgkcjZ4/gjPy+1GkonsdwOR4fhm+Cbko/wWk2au8BkVUC0+GSUM1t/rILCD ohbOOhjERW5Ap6hrmq4TqNucCfXeh/MVbailxb7h3HIvM552+aoNUuz4shPpKfUF5Sqe wtH/SbhkUITFuS1LvMFNwzjG/AGHGs588vRosSc1sbTjMWP6AIwD3YDpeNf7jvsz2aWm HB1vaCfxrmmyv0BxpS+KPOsryzwSOODROnd2Qd0YNC4PN/fZMN7A2aosZBZ0LCflHyWo 9TJreeFG5iOOXXn/8l3Mbcbx7zuaELK7ny+tmQO3VKG5JhmptQBD9uDzjkBhYUTpX7Sg b7/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=hbOBYLLgS3nk+eaQ3eLQRnTqzBqb7U4sY9IlPFvxRBo=; b=Sgnwqe0N/Ozrv7YMauNDKjiLg3kyrMBWr4UByTjek/Shx4Xm7lDq9q5upJJQwtXgkB L+Jxgo9lz6CkKHrzZQNZ6LDnlnj6APjAKkT+khAqmo/GwWMAtZRZZLzukQSpT7uRSqPd 6mDNGK+HxyZ4TwpkByPn+m/QEUmXnPKzJVnTavFit2KHPp8uAWyVbSWupAKGCq0utlHf jzA7cHaQZj/LqkaDKNtct0hblONIOlAsfZCyfl9EGGMTnFMKE7UwsfBDdWgwhfe3/+fd Xpdqt5Qy8LensuHk4ZIPmYXxYb7JfKl6htUYjSwkRcpLc4uXjTu+PhQrIY3Q7ArXwBwN Uinw== X-Gm-Message-State: AOAM533az1ON/+Sn4aF6TS/Df71IGTnfGMx4MLNoOhuWNCCDJ9M3iI4V jtD4EhqFjFbNiPSrV/0Pba0ClR22qeK1lXW3IL5iQwC2JyAjSg== X-Google-Smtp-Source: ABdhPJydzwluq28XxLsVT4DkgFxDQTDC5LfoZUezh0K3SzfiW8BvczqiHpXZT9cWuL4HpHOIzFg2q7mBNcI+lbnmd3s= X-Received: by 2002:a6b:cf15:: with SMTP id o21mr25698159ioa.9.1625769617055; Thu, 08 Jul 2021 11:40:17 -0700 (PDT) MIME-Version: 1.0 From: Yang Date: Thu, 8 Jul 2021 11:40:06 -0700 Message-ID: Subject: how to specify "disk=[....]" setting in "xl create" config? To: xen-users@lists.xenproject.org Content-Type: multipart/alternative; boundary="00000000000082e22705c6a0fc4b" --00000000000082e22705c6a0fc4b Content-Type: text/plain; charset="UTF-8" I'm following the wiki https://help.ubuntu.com/community/Xen#Manually_Create_a_PV_Guest_VM (section " Set Up Initial Guest Configuration ") I downloaded the netboot initrd.gz from https://mirror.arizona.edu/ubuntu//ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/xen/ but in the .cfg , what should I specify for the "disk = " line? ---- my host box is not using LVM, so I'll have to use "file-backed storage" for PV disk image. (https://wiki.xenproject.org/wiki/Storage_options , indeed this worked when I gave --dir= instead of --lvm= when running the xml-create command in https://wiki.xenproject.org/wiki/Xen_Project_Beginners_Guide ) here is my current config: yy@yy-70A4000HUX:~/ub_xen$ cat ub_xen.cfg name = "ubud1" kernel = "/home/yy/ub_xen/vmlinuz" ramdisk = "/home/yy/ub_xen/initrd.gz" #bootloader = "/usr/lib/xen-4.4/bin/pygrub" memory = 1024 vcpus = 1 # Custom option for Open vSwitch vif = [ 'bridge=xenbr0' ] disk = [ 'vdev=hda,target=/home/yy/ub_xen/images' ] # You may also consider some other options # [[http://xenbits.xen.org/docs/4.4-testing/man/xl.cfg.5.html]] yy@yy-70A4000HUX:~/ub_xen$ I ran the command with sudo xl create -c ub_xen.cfg this worked fine first, giving me the regular install process on console, pulling install files from remote archive, but when it comes to the step of disk paritioning, it's showing me a "SCSI" partitioning choice, with no volumes / partitions/disks to be chosen. I guess this is because I'm not setting the right value for "disk = [ ]" option. what should I use here if I use file-backed storage for PV (just like VMware does)? thanks a lot Yang --00000000000082e22705c6a0fc4b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I'm following the wiki=C2=A0https://help.ubuntu.c= om/community/Xen#Manually_Create_a_PV_Guest_VM=C2=A0
(section "= ;

Set Up Initial Guest Configuration

")


I downloaded the netboot initrd.gz from=C2=A0<= a href=3D"https://mirror.arizona.edu/ubuntu//ubuntu/dists/bionic/main/insta= ller-amd64/current/images/netboot/xen/">https://mirror.arizona.edu/ubuntu//= ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/xen/

but in the .cfg , what should I specify for the &quo= t;disk =3D " line? ---- my host box is not using LVM, so I'll have= to use "file-backed storage" for PV disk image. (https://wiki.xenproject.org/w= iki/Storage_options=C2=A0 , indeed this worked when I gave --dir=3D ins= tead of --lvm=3D when running the xml-create command in=C2=A0https://wiki.xen= project.org/wiki/Xen_Project_Beginners_Guide )


here is my current config:


yy@= yy-70A4000HUX:~/ub_xen$ cat ub_xen.cfg
name =3D "ubud1"=

kernel =3D "/home/yy/ub_xen/vmlinuz"
ramdisk =3D "/home/yy/ub_xen/initrd.gz"
#bootlo= ader =3D "/usr/lib/xen-4.4/bin/pygrub"

m= emory =3D 1024
vcpus =3D 1

# Custom opti= on for Open vSwitch
vif =3D [ 'bridge=3Dxenbr0' ]

disk =3D [ 'vdev=3Dhda,target=3D/home/yy/ub_xen/image= s' ]

# You may also consider some other option= s
# [[http://xenbits.xen.org/docs/4.4-testing/man/xl.cfg.5.html]]<= /div>
yy@yy-70A4000HUX:~/ub_xen$=C2=A0


I ran the command with=C2=A0sudo xl create -c ub_xen.cfg =

this worked fine first, giving me the regular in= stall process on console, pulling install files from remote archive, but wh= en it comes to the step of disk paritioning, it's showing me a "SC= SI" partitioning choice, with no volumes / partitions/disks to be chos= en.

I guess this is because I'm not s= etting the right value for "disk =3D [ ]" option. what should I u= se here if I use file-backed storage for PV (just like VMware does)?=

thanks a lot
Yang
--00000000000082e22705c6a0fc4b-- From xen-users-bounces@lists.xenproject.org Thu Jul 08 23:17:22 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Thu, 08 Jul 2021 23:17:22 +0000 Received: from list by lists.xenproject.org with outflank-mailman.153355.283337 (Exim 4.92) (envelope-from ) id 1m1dFz-0008Fx-0l; Thu, 08 Jul 2021 23:16:35 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 153355.283337; Thu, 08 Jul 2021 23:16:34 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1dFy-0008Fq-Tp; Thu, 08 Jul 2021 23:16:34 +0000 Received: by outflank-mailman (input) for mailman id 153355; Thu, 08 Jul 2021 23:16:33 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1dFx-0008Fk-DW for xen-users@lists.xenproject.org; Thu, 08 Jul 2021 23:16:33 +0000 Received: from mail-il1-x133.google.com (unknown [2607:f8b0:4864:20::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 7f38cee4-56f7-4c8b-8697-dfe6110e7295; Thu, 08 Jul 2021 23:16:32 +0000 (UTC) Received: by mail-il1-x133.google.com with SMTP id h3so8288168ilc.9 for ; Thu, 08 Jul 2021 16:16:32 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 7f38cee4-56f7-4c8b-8697-dfe6110e7295 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=vP8+ifBjMUhnCAVqQ/Ln7zh4aDlPHER8/duxCyDxGhQ=; b=C+mqV/dwSZLV64rjRHRsEYktjujT28vWLV2F1HpKQQell8jeSCBmNCTTg6qQLG+KFd N2hkan2Ug7ts/Ga6mvsSMI/nxDSqPB21IUrouSdNcjaHTDcNATFl+akCevyu7XBKvQzE 2wthQ4UJxPz2QosOaQT7Wrj614MZ2H1t0x3lWHE+sOvrvFGRiD58ZVYTjqfHBCu3Iq/p sf1fMqTf/BZSqzg7/cyfmRdH3Ldwr3VPSid/kp4vWjgepQpTUInFLtll01QVNl39OUgL 5m+ZLKeaJk5Snjhvm/JbGrJ32nC96+1O/KXP2ZSrTwZJbXhdJigRB2eA7F3ts11M7xEl ry3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=vP8+ifBjMUhnCAVqQ/Ln7zh4aDlPHER8/duxCyDxGhQ=; b=jkiAucVQPVwHcEAU1lkbACKXNVSuG6YI4Ao1S6QEApFm4wqF5xVxny5wbIJUNFPrrL lW+3gia8BaXsZ4Ue0AGZBR8zrn28gRFe1/Ijc6sczQJYwnO4kAdI4kvNPqnYCNe5WOMu rzcmiFDTj32dXyGjDziC8cDQMOOuOkjLhEd7CxhxuPRV+zjuL07vFdccipBov89TglAZ xDi5h79xCXLCmzVCrK+wznHphS64FOy7HWL8V5o1MZeuRRbE5lrLhzjYZJAzjZKnvPlB nyOSN9ElxUj6C/JsjCrqMJVakSWBJQnfbYm5CjMXQfyKWzttpyQyOFF0CJrmU/LgSH36 x/hg== X-Gm-Message-State: AOAM530/AUB4+M7O96Vbf06lQIMgqtNSy2w2lnlUFz5visiHO/xbSfOr Syj/g0rASzu7I7SExdqA9Hmf6HNl7gBgpWkarmz0q0uGBsFCzA== X-Google-Smtp-Source: ABdhPJzk4ZRklAeAnBNCQxQMnR5tqXVsl4SOoOJpzm9hrWlAIdn38zX26wvkR87VrBdlPjNkuvG5DB4cTR61Pbgt1j0= X-Received: by 2002:a05:6e02:178d:: with SMTP id y13mr24617822ilu.87.1625786191575; Thu, 08 Jul 2021 16:16:31 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Yang Date: Thu, 8 Jul 2021 16:16:20 -0700 Message-ID: Subject: Re: how to specify "disk=[....]" setting in "xl create" config? To: xen-users@lists.xenproject.org Content-Type: multipart/alternative; boundary="0000000000006dfe1305c6a4d8ec" --0000000000006dfe1305c6a4d8ec Content-Type: text/plain; charset="UTF-8" found it https://www.systutorials.com/create-and-manage-virtual-machines-on-xen/ huge thanks to the author of this doc, very clear. On Thu, Jul 8, 2021 at 11:40 AM Yang wrote: > I'm following the wiki > https://help.ubuntu.com/community/Xen#Manually_Create_a_PV_Guest_VM > (section " > Set Up Initial Guest Configuration > > ") > > I downloaded the netboot initrd.gz from > https://mirror.arizona.edu/ubuntu//ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/xen/ > > but in the .cfg , what should I specify for the "disk = " line? ---- my > host box is not using LVM, so I'll have to use "file-backed storage" for PV > disk image. (https://wiki.xenproject.org/wiki/Storage_options , indeed > this worked when I gave --dir= instead of --lvm= when running the > xml-create command in > https://wiki.xenproject.org/wiki/Xen_Project_Beginners_Guide ) > > > here is my current config: > > > yy@yy-70A4000HUX:~/ub_xen$ cat ub_xen.cfg > name = "ubud1" > > kernel = "/home/yy/ub_xen/vmlinuz" > ramdisk = "/home/yy/ub_xen/initrd.gz" > #bootloader = "/usr/lib/xen-4.4/bin/pygrub" > > memory = 1024 > vcpus = 1 > > # Custom option for Open vSwitch > vif = [ 'bridge=xenbr0' ] > > disk = [ 'vdev=hda,target=/home/yy/ub_xen/images' ] > > # You may also consider some other options > # [[http://xenbits.xen.org/docs/4.4-testing/man/xl.cfg.5.html]] > yy@yy-70A4000HUX:~/ub_xen$ > > > I ran the command with sudo xl create -c ub_xen.cfg > > this worked fine first, giving me the regular install process on console, > pulling install files from remote archive, but when it comes to the step of > disk paritioning, it's showing me a "SCSI" partitioning choice, with no > volumes / partitions/disks to be chosen. > > I guess this is because I'm not setting the right value for "disk = [ ]" > option. what should I use here if I use file-backed storage for PV (just > like VMware does)? > > thanks a lot > Yang > --0000000000006dfe1305c6a4d8ec Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
found it=C2=A0https://www.systutorials.com/create= -and-manage-virtual-machines-on-xen/

huge thanks to = the author of this doc, very clear.



On T= hu, Jul 8, 2021 at 11:40 AM Yang <teddyyyy123@gmail.com> wrote:
I'm following the wiki=C2=A0https://help.ubuntu.com/community/Xen#Manually_Create_= a_PV_Guest_VM=C2=A0
(section "

Set Up Initial Guest Configuration

<= span id=3D"gmail-m_7392151034833715928gmail-line-167" style=3D"margin:0px;p= adding:0px;border:0px;font-weight:inherit;font-style:inherit;line-height:1;= font-family:inherit;vertical-align:baseline">

")



here is my curr= ent config:


yy@yy-70A4000HUX:~/ub_xen$ c= at ub_xen.cfg
name =3D "ubud1"

kernel =3D "/home/yy/ub_xen/vmlinuz"
ramdisk =3D "= ;/home/yy/ub_xen/initrd.gz"
#bootloader =3D "/usr/lib/x= en-4.4/bin/pygrub"

memory =3D 1024
= vcpus =3D 1

# Custom option for Open vSwitch
=
vif =3D [ 'bridge=3Dxenbr0' ]

disk = =3D [ 'vdev=3Dhda,target=3D/home/yy/ub_xen/images' ]

=
# You may also consider some other options
=
yy@yy-70A4000HUX:~/ub_xen$=C2=A0


=
I ran the command with=C2=A0sudo xl create -c ub_xen.cfg

this worked fine first, giving me the regular install= process on console, pulling install files from remote archive, but when it= comes to the step of disk paritioning, it's showing me a "SCSI&qu= ot; partitioning choice, with no volumes / partitions/disks to be chosen. <= /span>

I guess this is because I'm not settin= g the right value for "disk =3D [ ]" option. what should I use he= re if I use file-backed storage for PV (just like VMware does)?

thanks a lot
Yang
--0000000000006dfe1305c6a4d8ec-- From xen-users-bounces@lists.xenproject.org Fri Jul 09 03:21:30 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Fri, 09 Jul 2021 03:21:30 +0000 Received: from list by lists.xenproject.org with outflank-mailman.153392.283402 (Exim 4.92) (envelope-from ) id 1m1h4F-0000RY-TR; Fri, 09 Jul 2021 03:20:43 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 153392.283402; Fri, 09 Jul 2021 03:20:43 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1h4F-0000RD-Mt; Fri, 09 Jul 2021 03:20:43 +0000 Received: by outflank-mailman (input) for mailman id 153392; Fri, 09 Jul 2021 03:20:42 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1h4E-0000R7-MV for xen-users@lists.xenproject.org; Fri, 09 Jul 2021 03:20:42 +0000 Received: from mail-il1-x132.google.com (unknown [2607:f8b0:4864:20::132]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 9de6d243-bd6b-48b8-902e-7bf923545adc; Fri, 09 Jul 2021 03:20:41 +0000 (UTC) Received: by mail-il1-x132.google.com with SMTP id h3so8770299ilc.9 for ; Thu, 08 Jul 2021 20:20:41 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 9de6d243-bd6b-48b8-902e-7bf923545adc DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=BnodcpfeTaTKYoqn9eNZVQ5noNTUC6FFwRsiG7kitT4=; b=g0kVY4QCM9HVzSfQXRL5Z0AjfdsLhFyUwWZrT6uCElzBllL+Y+8VpxUkCUZ/v3w1i1 WQhQHh+RhXqZMntrn5GNCT8Fis+GisKKFNeFvA/VqnGsFTONoptAAG28xnNkFjMjvvh8 TCOD9lL8wGr8LDkNTbZNfWgoKhxLtV4b9f5ZEXrY/GzT0FB2lfjb0qEkuoGK2+Z2IoT2 E6j6RXZfZvb4DdGiSuXF6Ci0/59bMjtkmNTy9u/biKeojC1nPWR7DC+ceBpOhgdqgwQC bSdY3F/NQPeGD1jZkDvnRgvGm0vrdyHA2cCDzHyxwWX3rOpFtyLDAhK3Rl2hXzT+Rr94 o5lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=BnodcpfeTaTKYoqn9eNZVQ5noNTUC6FFwRsiG7kitT4=; b=DN92uksluYD/AYHSUcDi0jQ7Y+MxZFpzsjdgEC6XWIfh4OQ7z5dtzzAMWA6H3+PzlW HIQIJ7ttfl1LyvGKg3UBrsjQ2MkPR3XoH8t6zeHtLyovSx77iqXB3mgSjGzVhGU757zY 31BtV66h3YNJ8eBC89eYcb3SGmnsjk8nvFfSCMWmnzaFJFrbvaOkrcrqTcuTq1DqwdU6 ZcefZGZpoaH9BATOPt01SNiB5IC6C9PNhIT5FaAyxBNYuWP8IpoKfLuB1uc2ygS+teLA MRpjUYYIg3j1Oe/tGHxtMjqiGJZRAYVozpMstFrXU6o6MLXsILp5Jlpb7h2/Qjwh0DjI 7LkA== X-Gm-Message-State: AOAM533nAN7VsyGMcoNTaYAM8JYlOk4MA3j6tou/rDL9xSWob6QwiaFd BrIdMv4y3sPKprLX2Mo3CY1O6Yqowc6UaC9yArfxcaFUA8N/gA== X-Google-Smtp-Source: ABdhPJzLd3GECXIson2eNucWY2Mb0hn1pV4bL5uxNE05KuTl67cKmk1zjbPm/P565xZMzv7qy9Emk3MVPRX6mTSEIzE= X-Received: by 2002:a05:6e02:1a43:: with SMTP id u3mr1494840ilv.229.1625800840834; Thu, 08 Jul 2021 20:20:40 -0700 (PDT) MIME-Version: 1.0 From: Yang Date: Thu, 8 Jul 2021 20:20:29 -0700 Message-ID: Subject: how to set static IP for guest/domU from the xen config? To: xen-users@lists.xenproject.org Content-Type: multipart/alternative; boundary="00000000000097f46605c6a841c0" --00000000000097f46605c6a841c0 Content-Type: text/plain; charset="UTF-8" assuming I'm not using DHCP for the guests ---- I want to give them static IPs so that when I use the guests to setup a cluster , my cluster config always expects the same IP list. I see that in a guest VM config, you can specify vif=['bridge=br,ip=10.0.0.2'] but given this, I log inside guest, the default network interface (eth0) has not acquired an IP. (bridge "br" was created outside of the bridge shared with host eth0, so that I can run NAT on the "br" bridge. see steps at: http://blog.manula.org/2012/04/manually-configuring-nat-networking-in.html ) so I had to manually ifup the eth0 to 10.0.0.2 inside guest. since I already specified the IP on config, is there a way to let the guest automatically pick up the wanted IP , instead of me having to manually run the "ifup" for each guest? this way I can generate 10 guest configs and give them different vif=[] params and start all 10 guests without manually logging into them. --00000000000097f46605c6a841c0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
assuming I'm not using DHCP for the guests ---- I want= to give them static IPs so that when I use the guests to setup a cluster ,= my cluster config always expects the same IP list.

I se= e that in a guest VM config, you can specify=C2=A0

vif=3D['bridge=3Dbr,ip=3D10.0.0.2']

but g= iven this, I log inside guest, the default network interface (eth0) has not= acquired an IP. (bridge "br" was created outside of the bridge s= hared with host eth0, so that I can run NAT on the "br" bridge. s= ee steps at:=C2=A0http://blog.manula.org/2012/04/manually-confi= guring-nat-networking-in.html )
so I had to manually ifup the= eth0 to=C2=A0 10.0.0.2 inside guest.


since I already specified the IP on config, is there a way to let th= e guest automatically pick up the wanted IP , instead of me having to manua= lly run the "ifup" for each guest? this way I can generate 10 gue= st configs and give them different vif=3D[] params and start all 10 guests = without manually logging into them.
--00000000000097f46605c6a841c0-- From xen-users-bounces@lists.xenproject.org Fri Jul 09 13:10:48 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Fri, 09 Jul 2021 13:10:48 +0000 Received: from list by lists.xenproject.org with outflank-mailman.153659.283864 (Exim 4.92) (envelope-from ) id 1m1qGa-0007SN-Hh; Fri, 09 Jul 2021 13:10:04 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 153659.283864; Fri, 09 Jul 2021 13:10:04 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1qGa-0007R4-DL; Fri, 09 Jul 2021 13:10:04 +0000 Received: by outflank-mailman (input) for mailman id 153659; Fri, 09 Jul 2021 13:10:02 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1qGY-0007CM-M9 for xen-users@lists.xenproject.org; Fri, 09 Jul 2021 13:10:02 +0000 Received: from mail.bitfolk.com (unknown [2001:ba8:1f1:f019::25]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id b9570542-937c-4b0a-8e13-aa67e1821bda; Fri, 09 Jul 2021 13:10:01 +0000 (UTC) Received: from andy by mail.bitfolk.com with local (Exim 4.89) (envelope-from ) id 1m1qGW-0000CS-6n for xen-users@lists.xenproject.org; Fri, 09 Jul 2021 13:10:00 +0000 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: b9570542-937c-4b0a-8e13-aa67e1821bda DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=bitfolk.com ; s=alpha; h=In-Reply-To:Content-Transfer-Encoding:Content-Type:MIME-Version: References:Message-ID:Subject:To:From:Date:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Hk6J/JlsJIuiEI5zwoQb00oOkM2eygKPIFVAmG6n2AI=; b=SHwJOAwLCU7PCZso5t+i6/i7UW 4mN7BftLJl+QqnRkji1IVzoenjfCKQ+0vWcWnZgBCy+wrKS5120SmNtZV+cLNMgisYsjhU9bEE0sQ JUG3uIJ9M/QnpFCRjbacOTMnbjZTguKWfU9bThhcmplRWXSBalxiK+ZDYFPlYA8Lwh6Ik/YbKwoEc NsTdUh4FacED6bOi+fDOmPvDK96fCuRw0xuR4kpad6pmn2P7f+GxpU7HjKCoNCR1EFlvhN7dZA3fM 6jk7FY8en0ktrEHWzuK0DR8bOjsVHx1bQfHeDOLhToixrQ0c2CHy3ViZ3K5KG+QZHmWj1g6bpM0Zc 5ECgeCAg==; Date: Fri, 9 Jul 2021 13:10:00 +0000 From: Andy Smith To: xen-users@lists.xenproject.org Subject: Re: how to set static IP for guest/domU from the xen config? Message-ID: <20210709131000.krvebexur4rha2hn@bitfolk.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: OpenPGP: id=BF15490B; url=http://strugglers.net/~andy/pubkey.asc X-URL: http://strugglers.net/wiki/User:Andy User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: andy@strugglers.net X-SA-Exim-Scanned: No (on mail.bitfolk.com); SAEximRunCond expanded to false Hello, On Thu, Jul 08, 2021 at 08:20:29PM -0700, Yang wrote: > I see that in a guest VM config, you can specify > > vif=['bridge=br,ip=10.0.0.2'] That is configuring your dom0's networking. Guest network config is done inside guest (which is what is happening with DHCP too, so that's no different). > since I already specified the IP on config, is there a way to let the guest > automatically pick up the wanted IP , instead of me having to manually run > the "ifup" for each guest? You have to arrange for the guest to configure it. In some Linux distributions that is possible on kernel command line, e.g. in Red Hat-like: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_ip_networking_from_the_kernel_command_line https://linuxlink.timesys.com/docs/static_ip …so at least the two instances of network details would be in the same place. At least some of that works on Debian/Ubuntu as well. Still, I'd rather do DHCP. Cheers, Andy From xen-users-bounces@lists.xenproject.org Fri Jul 09 16:33:21 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Fri, 09 Jul 2021 16:33:21 +0000 Received: from list by lists.xenproject.org with outflank-mailman.153807.284164 (Exim 4.92) (envelope-from ) id 1m1tQY-00055h-0J; Fri, 09 Jul 2021 16:32:34 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 153807.284164; Fri, 09 Jul 2021 16:32:33 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1tQX-00055Z-Ry; Fri, 09 Jul 2021 16:32:33 +0000 Received: by outflank-mailman (input) for mailman id 153807; Fri, 09 Jul 2021 16:32:33 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m1tQX-00055T-5J for xen-users@lists.xenproject.org; Fri, 09 Jul 2021 16:32:33 +0000 Received: from galileo.macserve.net (unknown [72.5.187.8]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 422e5336-e0d3-11eb-85ff-12813bfff9fa; Fri, 09 Jul 2021 16:32:32 +0000 (UTC) Received: from lindbergh.macserve.net (lindbergh.macserve.biz [10.52.2.16]) by galileo.macserve.net (Postfix) with ESMTPS id 8F5FA133 for ; Fri, 9 Jul 2021 11:32:31 -0500 (CDT) Received: from [47.186.21.164] (helo=[192.168.131.106]) by lindbergh.macserve.net with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.84_2) (envelope-from ) id 1m1tQV-0001Rq-8B for xen-users@lists.xenproject.org; Fri, 09 Jul 2021 11:32:31 -0500 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 422e5336-e0d3-11eb-85ff-12813bfff9fa From: Brian Blood Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.21\)) Subject: Moving live vif from one bridge to another Message-Id: <186B0E84-B723-4F48-B3BE-B37B47720475@macserve.net> Date: Fri, 9 Jul 2021 11:32:30 -0500 To: xen-users@lists.xenproject.org X-Mailer: Apple Mail (2.3445.104.21) X-AUTH-Host-Tracking: lindbergh.macserve.net accepted this message from an Authenticated connection. Contact postmaster@macserve.net for abuse issues. Include the X-AUTH-SenderToken header. X-AUTH-SenderToken: 2f7ad45e77efb790007ac023c8dfd776bee674ef Hello, Just like one can migrate an active domU from one CPU-pool to another, = is anyone aware of a method for migrating an active vif for a domU from = one bridge to another? TIA. Brian From xen-users-bounces@lists.xenproject.org Mon Jul 12 06:29:21 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Mon, 12 Jul 2021 06:29:21 +0000 Received: from list by lists.xenproject.org with outflank-mailman.154357.285263 (Exim 4.92) (envelope-from ) id 1m2pQj-0003mT-I3; Mon, 12 Jul 2021 06:28:37 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 154357.285263; Mon, 12 Jul 2021 06:28:37 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m2pQj-0003mG-9k; Mon, 12 Jul 2021 06:28:37 +0000 Received: by outflank-mailman (input) for mailman id 154357; Mon, 12 Jul 2021 06:28:36 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m2pQi-0003mA-OH for xen-users@lists.xenproject.org; Mon, 12 Jul 2021 06:28:36 +0000 Received: from mail-il1-x133.google.com (unknown [2607:f8b0:4864:20::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 5bf2e8f5-a5b3-4dbc-94d0-5b2a866c672b; Mon, 12 Jul 2021 06:28:34 +0000 (UTC) Received: by mail-il1-x133.google.com with SMTP id o8so7534408ilf.4 for ; Sun, 11 Jul 2021 23:28:34 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 5bf2e8f5-a5b3-4dbc-94d0-5b2a866c672b DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=fQtDtr5DLy/jCMoeih0HFOw4FaJZsKWgT3/NwoDqaOQ=; b=ipGbmwst4Z1NqAmg5DUTTJW2BdFHMxhhPShszOMJclXk0bTvOZs7nhNB8YkmXfDk3v 3L6ZbFvqgmPvtWAtu36pZ9OJZuJSSwoOM3KKPK3ECeA2wXLTvjriF11Gjeg6PK+ndk6a Zrw4q8PbvJkzu+BH/PbQPAJaZZnXLoa7J1Z67eOyNcdWz7u2MAVAkX4VaMdFXDcrvFU+ PDp5KNv5zYuL6x8ZQXxK0YCSJwiBj7CBli31NA2OZCDUEZusjj6F8FSrYB2K64muR3iA gXMfL96lYBdRkrwBdoIQMcAfLQ01fn57yJbrznKcwlVKHs3eHRjbr0iMBS64/kNnyaSS zjYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=fQtDtr5DLy/jCMoeih0HFOw4FaJZsKWgT3/NwoDqaOQ=; b=j+E2GIZLAcvCZ6/F0acfl6RjhrtPnJI6XCFXF4NeWXsRKfkpN38QwoZERL0gyawi3L 1rG39jVm/ZcOIbIOdImESGfADB1FcSVMq4KtFB9/aYjhGU+BVjnKw1KJhnc3wz2KpLGJ knoaehAGH7j9PyICUBP1atEx54gKzPWLAygQX2Y8wAeJzP+c896yiFavLFZKO0tnKnOX f5M/Bda2pZ27Ey2qB5ohSskwp6IcOiU8enCoeLh5TWxCbUrZPeDQHbMoyfgIYoQLU3vF CGoJAyh4KQ60KWGSr5eGEVBZq3kAgrkj5hklVyUOtM07cFpn8q4IXjKho7mXldvtZohJ 6x6A== X-Gm-Message-State: AOAM53316mqw2A/4qPeFr4ZQAoZZ/ldw0L6kIslErenQmYmaL+kltc89 c2yGmvEb9QEKO69VHIJMfPqfdiNOrr3gKyj1PwP3UQ+0Nm0oVQ== X-Google-Smtp-Source: ABdhPJyW+hUuRdi2t7F3NI/hqStudunKidAqUIVCGtQB5Tw7whpJ8HptvEGyBawHgpOzoMxCRVEAmYkRYm5I7lr/G4g= X-Received: by 2002:a05:6e02:1a43:: with SMTP id u3mr13629781ilv.229.1626071313592; Sun, 11 Jul 2021 23:28:33 -0700 (PDT) MIME-Version: 1.0 From: Yang Date: Sun, 11 Jul 2021 23:28:22 -0700 Message-ID: Subject: VM in NAT network setup can't ping to internet To: xen-users@lists.xenproject.org Content-Type: multipart/alternative; boundary="00000000000006b66b05c6e73b8f" --00000000000006b66b05c6e73b8f Content-Type: text/plain; charset="UTF-8" my host has IP 192.168.0.105, it goes to internet through my home wireless router 192.168.0.1 on the host, to setup NAT for my VMs , I created a new bridge by the steps in http://blog.manula.org/2012/04/manually-configuring-nat-networking-in.html note that in the following there is a xenbr0, that is used for the other VM in a bridged network setting, it's not related to this NAT usage. I tried not setting up the xenbr0, the issues with my NAT remains. root@yy-70A4000HUX:/home/yy# brctl addbr br root@yy-70A4000HUX:/home/yy# ifconfig br 10.0.0.1 up root@yy-70A4000HUX:/home/yy# ifconfig anbox0: flags=4163 mtu 1500 inet 192.168.250.1 netmask 255.255.255.0 broadcast 0.0.0.0 inet6 fe80::f47c:9dff:fe07:863f prefixlen 64 scopeid 0x20 ether f6:7c:9d:07:86:3f txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 268 bytes 96507 (96.5 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 br: flags=4163 mtu 1500 inet 10.0.0.1 netmask 255.0.0.0 broadcast 10.255.255.255 inet6 fe80::4:3ff:fee2:f029 prefixlen 64 scopeid 0x20 ether 02:04:03:e2:f0:29 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 35 bytes 13838 (13.8 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 br-1870818b7486: flags=4163 mtu 1500 inet 172.21.0.1 netmask 255.255.0.0 broadcast 172.21.255.255 inet6 fe80::42:53ff:fe65:ffa2 prefixlen 64 scopeid 0x20 ether 02:42:53:65:ff:a2 txqueuelen 0 (Ethernet) RX packets 11381 bytes 5398144 (5.3 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 29185 bytes 41434853 (41.4 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 br-c877ad85e968: flags=4099 mtu 1500 inet 172.24.0.1 netmask 255.255.0.0 broadcast 172.24.255.255 ether 02:42:dc:25:ae:71 txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 docker0: flags=4099 mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 ether 02:42:28:3a:59:0f txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth0: flags=4163 mtu 1500 ether 44:39:c4:54:25:d3 txqueuelen 1000 (Ethernet) RX packets 49625 bytes 47041255 (47.0 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 24247 bytes 6906668 (6.9 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 20 memory 0xf7c00000-f7c20000 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 183934 bytes 257676802 (257.6 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 183934 bytes 257676802 (257.6 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 veth5a03a3c: flags=4163 mtu 1500 inet6 fe80::a01c:a4ff:feb4:30d8 prefixlen 64 scopeid 0x20 ether a2:1c:a4:b4:30:d8 txqueuelen 0 (Ethernet) RX packets 2285 bytes 157539 (157.5 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4333 bytes 616718 (616.7 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vethea8d130: flags=4163 mtu 1500 inet6 fe80::5802:52ff:fee4:839e prefixlen 64 scopeid 0x20 ether 5a:02:52:e4:83:9e txqueuelen 0 (Ethernet) RX packets 47758 bytes 10697729 (10.6 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 61672 bytes 50466361 (50.4 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vethfa086dd: flags=4163 mtu 1500 inet6 fe80::f8b9:9fff:fe86:7f33 prefixlen 64 scopeid 0x20 ether fa:b9:9f:86:7f:33 txqueuelen 0 (Ethernet) RX packets 30149 bytes 8853899 (8.8 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 32553 bytes 4712623 (4.7 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vif2.0: flags=4163 mtu 1500 ether fe:ff:ff:ff:ff:ff txqueuelen 32 (Ethernet) RX packets 1833 bytes 89740 (89.7 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 7823 bytes 1554944 (1.5 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 xenbr0: flags=4163 mtu 1500 inet 192.168.0.105 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::4639:c4ff:fe54:25d3 prefixlen 64 scopeid 0x20 ether 44:39:c4:54:25:d3 txqueuelen 1000 (Ethernet) RX packets 43873 bytes 44476176 (44.4 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 19454 bytes 6448249 (6.4 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 veth5a03a3c: flags=4163 mtu 1500 inet6 fe80::a01c:a4ff:feb4:30d8 prefixlen 64 scopeid 0x20 ether a2:1c:a4:b4:30:d8 txqueuelen 0 (Ethernet) RX packets 2260 bytes 155817 (155.8 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4278 bytes 609680 (609.6 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vethea8d130: flags=4163 mtu 1500 inet6 fe80::5802:52ff:fee4:839e prefixlen 64 scopeid 0x20 ether 5a:02:52:e4:83:9e txqueuelen 0 (Ethernet) RX packets 47269 bytes 10634147 (10.6 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 61229 bytes 50356270 (50.3 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vethfa086dd: flags=4163 mtu 1500 inet6 fe80::f8b9:9fff:fe86:7f33 prefixlen 64 scopeid 0x20 ether fa:b9:9f:86:7f:33 txqueuelen 0 (Ethernet) RX packets 29737 bytes 8749262 (8.7 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 32107 bytes 4648615 (4.6 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vif2.0: flags=4163 mtu 1500 ether fe:ff:ff:ff:ff:ff txqueuelen 32 (Ethernet) RX packets 1803 bytes 88288 (88.2 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 7724 bytes 1544338 (1.5 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 xenbr0: flags=4163 mtu 1500 inet 192.168.0.105 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::4639:c4ff:fe54:25d3 prefixlen 64 scopeid 0x20 ether 44:39:c4:54:25:d3 txqueuelen 1000 (Ethernet) RX packets 43602 bytes 44431466 (44.4 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 19325 bytes 6431404 (6.4 MB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 the following is iptables setup: root@yy-70A4000HUX:/home/yy# iptables -A FORWARD --in-interface br -j ACCEPT root@yy-70A4000HUX:/home/yy# iptables --table nat -A POSTROUTING --out-interface eth0 -j MASQUERADE root@yy-70A4000HUX:/home/yy# iptables -t nat -L Chain PREROUTING (policy ACCEPT) target prot opt source destination DOCKER all -- anywhere anywhere ADDRTYPE match dst-type LOCAL Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination DOCKER all -- anywhere !localhost/8 ADDRTYPE match dst-type LOCAL Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 172.17.0.0/16 anywhere MASQUERADE all -- 172.24.0.0/16 anywhere MASQUERADE all -- 172.21.0.0/16 anywhere MASQUERADE all -- 192.168.250.0/24 !192.168.250.0/24 /* managed by anbox-bridge */ MASQUERADE tcp -- 172.21.0.4 172.21.0.4 tcp dpt:http-alt MASQUERADE all -- anywhere anywhere Chain DOCKER (2 references) target prot opt source destination RETURN all -- anywhere anywhere RETURN all -- anywhere anywhere RETURN all -- anywhere anywhere DNAT tcp -- anywhere anywhere tcp dpt:http-alt to:172.21.0.4:8080 root@yy-70A4000HUX:/home/yy# the VM is created from this config: root@yy-70A4000HUX:/home/yy/ub_xen/1# cat run.cfg name = "ub1" #kernel = "/home/yy/ub_xen/1/vmlinuz" #ramdisk = "/home/yy/ub_xen/1/initrd.gz" bootloader = "pygrub" memory = 1024 vcpus = 1 # Custom option for Open vSwitch vif=['bridge=br,mac=00:16:3e:66:8c:25'] #vfb = [ 'type=vnc' ] disk = ['tap:aio:/home/yy/ub_xen/1/vmdisk0,xvda,w' ] # You may also consider some other options # [[http://xenbits.xen.org/docs/4.4-testing/man/xl.cfg.5.html]] now I setup the "eth0 " inside VM yy@ubuntu:~$ sudo route add default gw 10.0.0.1 yy@ubuntu:~$ yy@ubuntu:~$ ifconfig eth0: flags=4163 mtu 1500 inet 10.0.0.2 netmask 255.0.0.0 broadcast 10.255.255.255 inet6 fe80::216:3eff:fe66:8c25 prefixlen 64 scopeid 0x20 ether 00:16:3e:66:8c:25 txqueuelen 1000 (Ethernet) RX packets 7 bytes 702 (702.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 41 bytes 8166 (8.1 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 1386 bytes 99578 (99.5 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1386 bytes 99578 (99.5 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 by this time, the VM can ping the host (either 10.0.0.1 or 192.168.0.105), but can't ping 192.168.0.1 (which needs to go outside the host) --00000000000006b66b05c6e73b8f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
my host has IP 192.168.0.105, it goes to internet thr= ough my home wireless router 192.168.0.1

on the ho= st, to setup NAT for my VMs , I created a new bridge by the steps in=C2=A0<= a href=3D"http://blog.manula.org/2012/04/manually-configuring-nat-networkin= g-in.html">http://blog.manula.org/2012/04/manually-configuring-nat-networki= ng-in.html


note that in the fol= lowing there is a xenbr0, that is used for the other VM in a bridged networ= k setting, it's not related to this NAT usage. I tried not setting up t= he xenbr0, the issues with my NAT remains.



root@yy-70A4000HUX:/home/yy# =C2=A0 =C2=A0 =C2=A0brc= tl addbr br
root@yy-70A4000HUX:/home/yy# =C2=A0 =C2=A0 =C2=A0ifconfig br= 10.0.0.1 up
root@yy-70A4000HUX:/home/yy# ifconfig
anbox0: flags=3D41= 63<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 inet 192.168.250.1 =C2=A0netmask 255.255.255.0 =C2=A0broadcas= t 0.0.0.0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::f47c:9dff:fe07:863f = =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 ether f6:7c:9d:07:86:3f =C2=A0txqueuelen 1000 =C2=A0(Ethernet)
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 = =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0fra= me 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 268 =C2=A0bytes 96507 (96.5 = KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 = =C2=A0carrier 0 =C2=A0collisions 0

br: flags=3D4163<UP,BROADCAST,= RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 10= .0.0.1 =C2=A0netmask 255.0.0.0 =C2=A0broadcast 10.255.255.255
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 inet6 fe80::4:3ff:fee2:f029 =C2=A0prefixlen 64 =C2=A0scop= eid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 02:04:03:e2:f0:29= =C2=A0txqueuelen 1000 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX p= ackets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 = =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 TX packets 35 =C2=A0bytes 13838 (13.8 KB)
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions= 0

br-1870818b7486: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST&g= t; =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 172.21.0.1 =C2=A0netm= ask 255.255.0.0 =C2=A0broadcast 172.21.255.255
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 inet6 fe80::42:53ff:fe65:ffa2 =C2=A0prefixlen 64 =C2=A0scopeid 0x20<= link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 02:42:53:65:ff:a2 =C2=A0txque= uelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 11381 = =C2=A0bytes 5398144 (5.3 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2= =A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = TX packets 29185 =C2=A0bytes 41434853 (41.4 MB)
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions= 0

br-c877ad85e968: flags=3D4099<UP,BROADCAST,MULTICAST> =C2= =A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 172.24.0.1 =C2=A0netmask 25= 5.255.0.0 =C2=A0broadcast 172.24.255.255
=C2=A0 =C2=A0 =C2=A0 =C2=A0 eth= er 02:42:dc:25:ae:71 =C2=A0txqueuelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 RX packets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0= =C2=A0 =C2=A0 =C2=A0 TX packets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0= collisions 0

docker0: flags=3D4099<UP,BROADCAST,MULTICAST> =C2= =A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 172.17.0.1 =C2=A0netmask 25= 5.255.0.0 =C2=A0broadcast 172.17.255.255
=C2=A0 =C2=A0 =C2=A0 =C2=A0 eth= er 02:42:28:3a:59:0f =C2=A0txqueuelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 RX packets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0= =C2=A0 =C2=A0 =C2=A0 TX packets 0 =C2=A0bytes 0 (0.0 B)
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0= collisions 0

eth0: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST>= ; =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 44:39:c4:54:25:d3 =C2= =A0txqueuelen 1000 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packe= ts 49625 =C2=A0bytes 47041255 (47.0 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX e= rrors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2= =A0 =C2=A0 TX packets 24247 =C2=A0bytes 6906668 (6.9 MB)
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0= collisions 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 device interrupt 20 =C2=A0memor= y 0xf7c00000-f7c20000 =C2=A0

lo: flags=3D73<UP,LOOPBACK,RUNNING&g= t; =C2=A0mtu 65536
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 127.0.0.1 =C2=A0netm= ask 255.0.0.0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 ::1 =C2=A0prefixlen 128 = =C2=A0scopeid 0x10<host>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 loop =C2=A0tx= queuelen 1000 =C2=A0(Local Loopback)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX pack= ets 183934 =C2=A0bytes 257676802 (257.6 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0= =C2=A0 =C2=A0 TX packets 183934 =C2=A0bytes 257676802 (257.6 MB)
=C2=A0= =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier = 0 =C2=A0collisions 0

veth5a03a3c: flags=3D4163<UP,BROADCAST,RUNNI= NG,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::= a01c:a4ff:feb4:30d8 =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 ether a2:1c:a4:b4:30:d8 =C2=A0txqueuelen 0 =C2= =A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 2285 =C2=A0bytes 15= 7539 (157.5 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 = =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 43= 33 =C2=A0bytes 616718 (616.7 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0= =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0

vethe= a8d130: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::5802:52ff:fee4:839e =C2=A0prefixl= en 64 =C2=A0scopeid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 5= a:02:52:e4:83:9e =C2=A0txqueuelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2= =A0 =C2=A0 RX packets 47758 =C2=A0bytes 10697729 (10.6 MB)
=C2=A0 =C2=A0= =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 61672 =C2=A0bytes 50466361 (50.4 M= B)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 = =C2=A0carrier 0 =C2=A0collisions 0

vethfa086dd: flags=3D4163<UP,B= ROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 inet6 fe80::f8b9:9fff:fe86:7f33 =C2=A0prefixlen 64 =C2=A0scopeid 0x20&l= t;link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether fa:b9:9f:86:7f:33 =C2=A0txq= ueuelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 30149 = =C2=A0bytes 8853899 (8.8 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2= =A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = TX packets 32553 =C2=A0bytes 4712623 (4.7 MB)
=C2=A0 =C2=A0 =C2=A0 =C2= =A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions= 0

vif2.0: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0= mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether fe:ff:ff:ff:ff:ff =C2=A0txque= uelen 32 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 1833 = =C2=A0bytes 89740 (89.7 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2= =A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = TX packets 7823 =C2=A0bytes 1554944 (1.5 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0= TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0<= br>
xenbr0: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu= 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 192.168.0.105 =C2=A0netmask 255.2= 55.255.0 =C2=A0broadcast 192.168.0.255
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6= fe80::4639:c4ff:fe54:25d3 =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>= ;
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 44:39:c4:54:25:d3 =C2=A0txqueuelen 1= 000 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 43873 =C2=A0= bytes 44476176 (44.4 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0d= ropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX p= ackets 19454 =C2=A0bytes 6448249 (6.4 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX= errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0
=

veth5a03a3c: flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2= =A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::a01c:a4ff:feb4:30d8 = =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 ether a2:1c:a4:b4:30:d8 =C2=A0txqueuelen 0 =C2=A0(Ethernet)
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 RX packets 2260 =C2=A0bytes 155817 (155.8 KB)
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0overruns 0 = =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 4278 =C2=A0bytes 60= 9680 (609.6 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 = overruns 0 =C2=A0carrier 0 =C2=A0collisions 0

vethea8d130: flags=3D4= 163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 inet6 fe80::5802:52ff:fee4:839e =C2=A0prefixlen 64 =C2=A0scop= eid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 5a:02:52:e4:83:9e= =C2=A0txqueuelen 0 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX pack= ets 47269 =C2=A0bytes 10634147 (10.6 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX = errors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 = =C2=A0 =C2=A0 TX packets 61229 =C2=A0bytes 50356270 (50.3 MB)
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 = =C2=A0collisions 0

vethfa086dd: flags=3D4163<UP,BROADCAST,RUNNING= ,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::f8= b9:9fff:fe86:7f33 =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 ether fa:b9:9f:86:7f:33 =C2=A0txqueuelen 0 =C2=A0(= Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 29737 =C2=A0bytes 87492= 62 (8.7 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2= =A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 32107= =C2=A0bytes 4648615 (4.6 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 = =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0

vif2.0= : flags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 ether fe:ff:ff:ff:ff:ff =C2=A0txqueuelen 32 =C2=A0= (Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 1803 =C2=A0bytes 88288= (88.2 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2= =A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 7724 = =C2=A0bytes 1544338 (1.5 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2= =A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0

xenbr0: f= lags=3D4163<UP,BROADCAST,RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 = =C2=A0 =C2=A0 =C2=A0 inet 192.168.0.105 =C2=A0netmask 255.255.255.0 =C2=A0b= roadcast 192.168.0.255
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::4639:c4ff= :fe54:25d3 =C2=A0prefixlen 64 =C2=A0scopeid 0x20<link>
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 ether 44:39:c4:54:25:d3 =C2=A0txqueuelen 1000 =C2=A0(Ethe= rnet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 43602 =C2=A0bytes 44431466 = (44.4 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0 =C2=A0= overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 19325 = =C2=A0bytes 6431404 (6.4 MB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 =C2= =A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0



the following is iptables setup:
=
root@yy-70A4000HUX:/home/yy# =C2=A0 =C2=A0 =C2=A0 iptables -= A FORWARD --in-interface br -j ACCEPT
root@yy-70A4000HUX:/home/yy# =C2= =A0 =C2=A0 =C2=A0iptables --table nat -A POSTROUTING --out-interface eth0 -= j MASQUERADE
root@yy-70A4000HUX:/home/yy# iptables -t nat -L
Chain PR= EROUTING (policy ACCEPT)
target =C2=A0 =C2=A0 prot opt source =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 destination =C2=A0 =C2=A0 =C2=A0 =C2= =A0
DOCKER =C2=A0 =C2=A0 all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= ADDRTYPE match dst-type LOCAL

Chain INPUT (policy ACCEPT)
target= =C2=A0 =C2=A0 prot opt source =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 destination =C2=A0 =C2=A0 =C2=A0 =C2=A0

Chain OUTPUT (policy= ACCEPT)
target =C2=A0 =C2=A0 prot opt source =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 destination =C2=A0 =C2=A0 =C2=A0 =C2=A0
DOCKER= =C2=A0 =C2=A0 all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0!localhost/8 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0ADDRTYPE match dst= -type LOCAL

Chain POSTROUTING (policy ACCEPT)
target =C2=A0 =C2= =A0 prot opt source =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 destin= ation =C2=A0 =C2=A0 =C2=A0 =C2=A0
MASQUERADE =C2=A0all =C2=A0-- =C2=A0<= a href=3D"http://172.17.0.0/16">172.17.0.0/16 =C2=A0 =C2=A0 =C2=A0 =C2= =A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
MASQUERADE =C2=A0a= ll =C2=A0-- =C2=A0172.24.0.0/16 =C2=A0= =C2=A0 =C2=A0 =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
= MASQUERADE =C2=A0all =C2=A0-- =C2=A0172.21= .0.0/16 =C2=A0 =C2=A0 =C2=A0 =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0
MASQUERADE =C2=A0all =C2=A0-- =C2=A0192.168.250.0/24 =C2=A0 =C2=A0!192.168.250.0/24 =C2=A0 =C2=A0 /* managed by anbox-bridge */=
MASQUERADE =C2=A0tcp =C2=A0-- =C2=A0172.21.0.4 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 172.21.0.4 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 tcp dpt:http-altMASQUERADE =C2=A0all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0

Cha= in DOCKER (2 references)
target =C2=A0 =C2=A0 prot opt source =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 destination =C2=A0 =C2=A0 =C2=A0 =C2= =A0
RETURN =C2=A0 =C2=A0 all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
RETURN =C2=A0 =C2=A0 all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
= RETURN =C2=A0 =C2=A0 all =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
DNA= T =C2=A0 =C2=A0 =C2=A0 tcp =C2=A0-- =C2=A0anywhere =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 anywhere =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 tcp dp= t:http-alt to:172.21.0.4:8080
roo= t@yy-70A4000HUX:/home/yy#



the VM is created from this config:
root@yy-70A4000HUX:/home/yy/= ub_xen/1# cat run.cfg
name =3D "ub1"

#kernel =3D "= ;/home/yy/ub_xen/1/vmlinuz"
#ramdisk =3D "/home/yy/ub_xen/1/in= itrd.gz"
bootloader =3D "pygrub"

memory =3D 1024vcpus =3D 1

# Custom option for Open vSwitch
vif=3D['bridge= =3Dbr,mac=3D00:16:3e:66:8c:25']

#vfb =3D [ 'type=3Dvnc'= ]

disk =3D ['tap:aio:/home/yy/ub_xen/1/vmdisk0,xvda,w' ]
# You may also consider some other options
# [[http://xenbits.xen.org/do= cs/4.4-testing/man/xl.cfg.5.html]]
=C2=A0


now I setup the "eth0 " inside VM
yy@ubuntu:~$ sudo =C2=A0 =C2=A0 =C2=A0route add default gw 10.0.0.1
yy= @ubuntu:~$
yy@ubuntu:~$ ifconfig
eth0: flags=3D4163<UP,BROADCAST,= RUNNING,MULTICAST> =C2=A0mtu 1500
=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 10= .0.0.2 =C2=A0netmask 255.0.0.0 =C2=A0broadcast 10.255.255.255
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 inet6 fe80::216:3eff:fe66:8c25 =C2=A0prefixlen 64 =C2=A0s= copeid 0x20<link>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 ether 00:16:3e:66:8c= :25 =C2=A0txqueuelen 1000 =C2=A0(Ethernet)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 R= X packets 7 =C2=A0bytes 702 (702.0 B)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX err= ors 0 =C2=A0dropped 0 =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2= =A0 =C2=A0 TX packets 41 =C2=A0bytes 8166 (8.1 KB)
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 TX errors 0 =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisi= ons 0

lo: flags=3D73<UP,LOOPBACK,RUNNING> =C2=A0mtu 65536
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 127.0.0.1 =C2=A0netmask 255.0.0.0
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 inet6 ::1 =C2=A0prefixlen 128 =C2=A0scopeid 0x10&l= t;host>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 loop =C2=A0txqueuelen 1000 =C2=A0= (Local Loopback)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX packets 1386 =C2=A0bytes= 99578 (99.5 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 RX errors 0 =C2=A0dropped 0= =C2=A0overruns 0 =C2=A0frame 0
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX packets 1= 386 =C2=A0bytes 99578 (99.5 KB)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 TX errors 0 = =C2=A0dropped 0 overruns 0 =C2=A0carrier 0 =C2=A0collisions 0

=

by this time, the VM can ping the host (either 10.0.0.1= or 192.168.0.105), but can't ping 192.168.0.1 (which needs to go outsi= de the host)




--00000000000006b66b05c6e73b8f-- From xen-users-bounces@lists.xenproject.org Mon Jul 19 13:14:00 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Mon, 19 Jul 2021 13:14:00 +0000 Received: from list by lists.xenproject.org with outflank-mailman.158405.291627 (Exim 4.92) (envelope-from ) id 1m5T5A-0001rr-Hj; Mon, 19 Jul 2021 13:13:16 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 158405.291627; Mon, 19 Jul 2021 13:13:16 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5T5A-0001rj-Dk; Mon, 19 Jul 2021 13:13:16 +0000 Received: by outflank-mailman (input) for mailman id 158405; Mon, 19 Jul 2021 13:13:16 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5T59-0001rd-Op for xen-users@lists.xenproject.org; Mon, 19 Jul 2021 13:13:16 +0000 Received: from sonic313-13.consmr.mail.bf2.yahoo.com (unknown [74.6.133.123]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 12ad96d6-e893-11eb-8b0b-12813bfff9fa; Mon, 19 Jul 2021 13:13:13 +0000 (UTC) Received: from sonic.gate.mail.ne1.yahoo.com by sonic313.consmr.mail.bf2.yahoo.com with HTTP; Mon, 19 Jul 2021 13:13:13 +0000 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 12ad96d6-e893-11eb-8b0b-12813bfff9fa DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1626700393; bh=l18PjkB9hXf1el1P9PTIDEqmXu8VbO4V3xzoxKLzQ5w=; h=Date:From:Reply-To:To:In-Reply-To:References:Subject:From:Subject:Reply-To; b=LdEw/aZa7OyqZLMQnOYjAcjY1y9l2SVQeFou8OXEwUAbPDh9XC5VZVSYIEGJq6+oAM7ErqRJDL/c0toFkoEhLDdbAc1mX7lnJMEfsfr+dxTZ9eociGsChzpL0a5blH4FFl7pt9NnsA9chyA/pV91eUYwqtowCZ/KRMXFLleDZ0sK4Ue5FJdj4aLLdnFEYJKsVOu15wJhtLGIVI/L/l3mvtIKZVzetXr/wixIKrinYLMeJCERe1nFPuy+NgOx09osf6r2hh8dMLl9XZNsIB0LaIOfhyXNUo0WnEkDWcj0yX0PZE7WoSJ05Hgl4TJbAemqJy9FPflF3ykQhtEr0p48MQ== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1626700393; bh=uRbwIR2ul6394r4Gcs2tgIjc4hCWrPBBssCYuxKKFrb=; h=X-Sonic-MF:Date:From:To:Subject:From:Subject; b=TV9hquKACAndeRj9X2AZUeoW0TyENLa0YdKcEgDewNmxS6StT1D+Q8w6O8+OGWGuw1iFFenTSbY9bV7PRpF5Q7BrSEnvecP8Ekcmmj3YveLuliL1vZ1MPhKGA0+eaf5JtC7k25smYC3MwiBGQ4voHo4j7baSjSuoECmlKQeFvUolsPmGOfrDbakxDVulXDSclJoG6/V0MS4e5TMkFYDBQALcItOUXUFT4Elo/1XIynSCFdctX6J4KRaljJ5z8nd8M7ElDaJ4OpMgiKrdjHFpf7y56rDjcwS0VZNByT+Ezoa0QDNq2Snk/FZyUdi6CZ9U4yuLiZsNXAy1S9Ek8dzRMg== X-YMail-OSG: DJaCDesVM1niV5gB4pHZdDbSpLXUrQPno5Q0ytrisCxHYA7XfM8HLRbQ632lltQ t1mue8kLcMNpuH4sdP3Eb.IM_bePLJa9eyVJYx0oWxW0fmCFWELS6LIPnNRPfXGWU.pTOAUjcFQC 2vgFTqP6pqqvq093neQ3HVhP7uJjqytox2k7YkSv_slhQTxPiExHBFuNY2jQ7AIA_kfgE6n6Pw1t EsotoNs73hWpILyCc_3U.zV7ii9sIb_ZUVIeMNB1IJS4YIuF9zrytTD45nMOldBQaNBWoUb5y8WO GeMVEH_hdb8rRVfUc6ODLiLlWXd_LawsJ.L4jp2zsxt9LAy5m1ApkE2EwiyifUZ6gXgMZm_W.36w H7Fs87V1nYicj4QahaCaqFpx4WLb8MkZPMH8RGSXJJMsoFUchD.Cjot81EAcdBULyeC5FbAo9X_b iSHNw3BXaozR95F4gTjjGpeKfi.qo73t.pVktVSibBeroVYluv4TI3VFqyf0ySjrj1cAQs67Gmh_ cXvpI5KB4brxQ4rrmzgxUyDAH0B1JMmHPHiQ58R.WI7riN3GHuDPkxCOKddZlx4OwqDHJ9M4fC7_ Tnq5dDFYU7i8Ik8Px7T8silwYSdvWnKXKSmy1ZlvjxvBdZAmIxTVKcgbo6fl41EgWdqiJgcZHyHQ ASRpFiaidjMsPL9DrVE.VRVOj7tlQCYHegN6Sr.MqYcLC9uuim2FzV9rcM10FES5rkneCO39FteO azHwwV.eEhurlfAN5t0NewwzvfKqkEis7zAZ_6Joeq5u2efTPJ16GopWJBNohq6nCI3zfzenK0bU 6mGmKuWRzJaOUvIj2XiuTITLBg.EAhGZoHd3bw9.OHUYFXli8gS44iB3UMFSfNL3WbtQ_ail9Xzv vbKvU8kyg07kfZWpS.8KTO4oX1nJ4AttaBrkvmV43HYnQnZPnWO0a2eAPlVuIV_2MxsBZjeF4r58 p.jIfX2R6PM4eJG.vJ0ICXk_YT0ROHWZIOXLUcva_YVqn66.RmgNdrGHIX3wweejMsCfgS64jaQb nuJxyVcWasZkxsnCCECD9zzyLY3ly_37nDjeXAmRwsFPEAlLlTbFigfkpN4pv7LuaIQxLuoLfCXk jEIu1uSxYlP9Z.EWs5OZ7m71SiiUobBEl4ssEpdfuaIF7ypu8zQkAuA4NMQB7lPLJj0Hiqbb4.ho Dg5atrU8UwJ7a9UoIi3O_m.NhlNdszI44v1dnYvno9XyJT_mKxSVd9GwaF3SqZ9xUhoQBRC86DqB 6L.nAwAw07.DlW21NgOrX31IND6oUBxNUqgaQFy9fbz_R5_3rZEhkdkOIdv9fnbOCGL0ToklRseP fkMEJysKmyKr1wJq.d4j_Sw55.c7XwSr18z81YfHXMbXYWDCZjSpnmbjIVbDdRYJ2ivG2JIn7Pjb Lhr0NO6aoBnRdXfFZ0fF2QDyJUXg6jDc0fjPu6ag5r05XCZgOqFGcnV8FqWoOOlLiiRqZ0Fa5Pjw d00XnVjSA2ebd39Y76lRK6veGRcAEn.6u7Bb4FuGw2i4GhWCRNqcekFea3urKWZ3.RPWdnRwqyDw VRa7uyssmxcu21Hr4sNT.FbdLSkRA0NGB7Fl8kSsL79GvlrW9yE3FIQCGRmnbN4j6NLnYKOsfS_7 i6SUJhlBsBy8gpxd_S5YoF3r38fuUbhpC3atE1qEztYs9oAw.fpxFveP5Pomno46UgSj34Ko1XB. CSp2XgIbzBQWZaqOCUFLBNuL.YhF0fkcrQ0nYrdVw717W9p72EwT7UO7yd0VlQ4D5VS55lCqD2HR pamH9OSnoIq9dh5MEEkuxl_xs8QK_iHdC7m4poe1Drdbxd8tfFhq7HZZbvEhmkEZw6LRgFTTdwpt 2xOMTCL02A1cEBThh_K2y3lmqlaaTOCN4KG8D8zFyl6L3k1Z2dBCwlZWtd20CJHGlhNkPZQbb.6X EfyvuTN6aRvNK.0CHn57bvHzjgsfjmTZ6298bZCYgw234JAcZIoHFXLPoLLv39b86DzkUKLNnErz PtSUfFJkpY4UZK5J72qEsWd6MGntu91OofLtn0JJDhH4l1wz.R6nRyijN6GTcWJ5onUecb3YvG6e kZWQeLyqGzfTzZB18Q_CFFdbGoXxrKJjHJjCRLBYtO5m74bS.odbUs9MA6BYP1nbP7BReC8Wu1_2 2ZnVvrl8hsjneImTmDzu5UI43wuTkTiw38ALInf1xSII1XiwKIfJZ.iyZ5eWeXktTJWsDgmUYD.q ZG8Mevvzajc4fbJ3.jV4psXYIS7mVcIuVEOr6CjoiQw7ISEqyjyMHrU8RXVoUPUp05vGSaVkzviW eRAtl_KiaMIKp2reQDAT2LTLvIe4FZ2XptmPTMFRDM.GBGEOPj_vFgPyMugE8pJXiwO49akXZ3yv shmgrMpT01ECwvVQHRcqotWatzymvSCuDr30nsOXghnyqPT8oOLhF6wW4PXfxjQoDBxuQtmlxq0T Bl4G8E7oyj47hydT9VOKLfiDhX79cuEHloyBJW3BK9wXv73.p7vzyYANZUndpOiHM0i3v.lOe.xR BQra3DGqTyGUabSvK3CU6NuGE.40suCq8ly0VVPeZTfQjgAVyNM1w_S_CEfgx0JMpO.k4jOTnYuk QXl66vk1aim.hRiq1jo3GOKkpTA7_VEJ576TTdLW021k2ltVZ4dljN7KNR.0zcGzFJvhbM_2tGfL AwVKnyYa_kbcRoyEq7HLaPoVM4Kmu3AOqRdNNBFvKxXX4mDBBaEVnq44VeleWIWLCwYePaeJufB7 lv0cAf1iiyRomCT4nZ0rzYKK.YxHTF1KEDE.RsQPBe78FGcF9NXLgGk85jnA- X-Sonic-MF: Date: Mon, 19 Jul 2021 13:13:05 +0000 (UTC) From: Jason Long Reply-To: Jason Long To: WF Konynenberg , Xen-users Message-ID: <170078272.269255.1626700385856@mail.yahoo.com> In-Reply-To: <1148566997.295090.1626700117067@mail.yahoo.com> References: <1399391994.2416253.1623064168392.ref@mail.yahoo.com> <1399391994.2416253.1623064168392@mail.yahoo.com> <26B1395B-8E09-4856-B538-5086A7BC3DE8@konynenberg.org> <104157149.3849732.1623685726325@mail.yahoo.com> <590DACB2-13CA-4458-8EDB-89CF9F91F0E5@konynenberg.org> <1148566997.295090.1626700117067@mail.yahoo.com> Subject: Re: Containers as VMs. MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_269254_31677903.1626700385854" X-Mailer: WebService/1.1.18469 YahooMailAndroidMobile Content-Length: 9441 ------=_Part_269254_31677903.1626700385854 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,I guess the new version of the Xen Project have a container inside of= itself. Am I wrong? Or if it is true, then why other products? Sent from Yahoo Mail on Android=20 =20 On Mon, Jul 19, 2021 at 5:38 PM, Jason Long wrote: = Hello,Run virtual machines inside containers? I guess you mean was "Run co= ntainers inside virtual machines" ! Sent from Yahoo Mail on Android=20 =20 On Tue, Jun 15, 2021 at 3:57 AM, WF Konynenberg wrot= e: Btw, I know at least one company that does sort of the reverse of what= RunX/Kata do: they run virtual machines inside containers.=C2=A0 One VM pe= r container.=C2=A0 This is technically perhaps not entirely optimal, but it= makes sense if you already have a complete infrastructure to automatically= run containers at scale, and you need an infrastructure to run VMs at scal= e.=C2=A0 Package the VM inside a container and deploy it automatically usin= g the existing container infrastructure.=C2=A0 Saves a lot of work. wfk On June 14, 2021 5:48:46 PM GMT+02:00, Jason Long wro= te: >Thank you. >Do you know RunX(https://github.com/lf-edge/runx) or=C2=A0Kata=C2=A0Contai= ners? > > > > > > >On Tuesday, June 8, 2021, 03:27:48 PM GMT+4:30, WF Konynenberg > wrote:=20 > > > > > >The question as stated doesn't make much sense and suggests you may >want to read up a bit on the theory behind these two technologies. > >Containers and VMs have some significant similarities, and some >significant differences.=C2=A0 Which tool you use to solve any specific >problem depends on many factors and often there isn't necessarily any >single "best" solution. > >But it is important to realize that these are two distinct >technologies, each with their own specific properties. > >So you cannot, in general, "run a container as a VM".=C2=A0 You may be abl= e >to use a container in a way that gives you all the key benefits of a VM >that you care about for this specific use case.=C2=A0 There are many use >cases where either a container or a VM will basically do the job, and >you make your choice based on additional external constraints that >might perhaps make one technology or the other more preferable for the >organization. > >There is no clear universal "benefit" of one over the other.=C2=A0 The two >technologies have some fundamentally different properties at various >levels, and you need to consider which of these properties are and are >not relevant for your particular use case. > >wfk > >On June 7, 2021 1:09:28 PM GMT+02:00, Jason Long >wrote: >>Hello, >>What is the benefit of running a container as a VM? >> >> >>Thank you. --=20 Sent from my Android device with K-9 Mail. Please excuse my brevity. =20 =20 ------=_Part_269254_31677903.1626700385854 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,
I guess the new = version of the Xen Project have a container inside of itself. Am I wrong? O= r if it is true, then why other products?

Sent from Yahoo Mail on Android<= /div>
On Mon, Jul 19, 2021 at 5:38= PM, Jason Long
<hack3rcon@yahoo.com> wrote:
<= div style=3D"padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px s= olid #6D00F6;">
Hello,
Run virtual machines inside con= tainers? I guess you mean was "Run containers inside virtual machines" !

On Tue, Jun 15, 2021 at 3:57 AM, WF Konynenberg
=
<wfk@konynenberg.org> wrote:
Btw, I kno= w at least one company that does sort of the reverse of what RunX/Kata do: = they run virtual machines inside containers.  One VM per container.&nb= sp; This is technically perhaps not entirely optimal, but it makes sense if= you already have a complete infrastructure to automatically run containers= at scale, and you need an infrastructure to run VMs at scale.  Packag= e the VM inside a container and deploy it automatically using the existing = container infrastructure.  Saves a lot of work.

wfk

On June 14, 2021 5:48= :46 PM GMT+02:00, Jason Long <hack3rcon@yahoo.com> wrote:
>Thank you.
>Do you know RunX(https://github.com/lf-edge/runx) or Ka= ta Containers?
>
>
>
>
>
>
>On Tuesday, June 8, 2021, 03:27:48 PM GMT+4:= 30, WF Konynenberg
><wfk@konynenberg.org> wrot= e:
>
>
>>
>
>The quest= ion as stated doesn't make much sense and suggests you may
>want to read up a bit on the theory behind these two technologies.>
>Containers and VMs have some sig= nificant similarities, and some
>significant differenc= es.  Which tool you use to solve any specific
>pr= oblem depends on many factors and often there isn't necessarily any
>single "best" solution.
>
>But it is important to realize that these are two distinct
>technologies, each with their own specific properties.
>
>So you cannot, in general, "run a c= ontainer as a VM".  You may be able
>to use a con= tainer in a way that gives you all the key benefits of a VM
>that you care about for this specific use case.  There are many= use
>cases where either a container or a VM will basi= cally do the job, and
>you make your choice based on a= dditional external constraints that
>might perhaps mak= e one technology or the other more preferable for the
>= ;organization.
>
>There is no cle= ar universal "benefit" of one over the other.  The two
>technologies have some fundamentally different properties at various=
>levels, and you need to consider which of these prop= erties are and are
>not relevant for your particular u= se case.
>
>wfk
>
>On June 7, 2021 1:09:28 PM GMT+02:00, Jason Lon= g <hack3rcon@yahoo.com>
>wrote:
>>Hello,
>>What is the benefit of running= a container as a VM?
>>
>>=
>>Thank you.

= --
Sent from my Android device with K-9 Mail. Please exc= use my brevity.
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MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_515453_619166706.1626775089645" References: <1815898490.515454.1626775089646.ref@mail.yahoo.com> X-Mailer: WebService/1.1.18469 YahooMailAndroidMobile Content-Length: 2460 ------=_Part_515453_619166706.1626775089645 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,Is control domain part of the Xen Hypervidor?I know Citrix Hypervisor= is based on the Xen Hypervisor and about Citrix Hypervisor and Dom0 Google= tell me: "The control domain, also known as 'dom0', is a secure, privileged Linux Vi= rtual Machine (VM) that runs the Citrix Hypervisor management toolstack (XA= PI). The control domain provides the Citrix Hypervisor management function.= It also runs the driver stack that provides user-created VMs access to phy= sical devices." =C2=A0When Dom0 is kind of a VM, then Xen Hypervisor running in a VM??? Why PV on HVM removed? Thank you. Sent from Yahoo Mail on Android ------=_Part_515453_619166706.1626775089645 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,
Is control domain part of the Xe= n Hypervidor?
I k= now Citrix Hypervisor is based on the Xen Hypervisor and about Citrix Hyper= visor and Dom0 Google tell me:

"The control domain, also known as 'dom0', is a secure, privileged Linux = Virtual Machine (VM) that runs the Citrix Hypervisor management toolstack (= XAPI). The control domain provides the Citrix Hypervisor management functio= n. It also runs the driver stack that provides user-created VMs access to p= hysical devices."

 
When Dom0 is kind of a VM, then Xen Hyperv= isor running in a VM???

Why P= V on HVM removed?


Thank you.
------=_Part_515453_619166706.1626775089645-- From xen-users-bounces@lists.xenproject.org Tue Jul 20 15:16:34 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 20 Jul 2021 15:16:34 +0000 Received: from list by lists.xenproject.org with outflank-mailman.158814.292164 (Exim 4.92) (envelope-from ) id 1m5rTF-0005GS-5a; Tue, 20 Jul 2021 15:15:45 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 158814.292164; Tue, 20 Jul 2021 15:15:45 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5rTF-0005GK-2V; Tue, 20 Jul 2021 15:15:45 +0000 Received: by outflank-mailman (input) for mailman id 158814; Tue, 20 Jul 2021 15:15:43 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5rTC-0005GE-Ss for xen-users@lists.xenproject.org; Tue, 20 Jul 2021 15:15:43 +0000 Received: from xc.os3.su (unknown [62.210.110.7]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 58130c3a-e96d-11eb-8ba5-12813bfff9fa; Tue, 20 Jul 2021 15:15:40 +0000 (UTC) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 58130c3a-e96d-11eb-8ba5-12813bfff9fa Subject: Re: A question about Dom0. DKIM-Signature: v=1; a=rsa-sha1; c=simple/simple; d=nethence.com; s=sep2020; t=1626793182; bh=1z/pP33IhaVGr0Vi3ZWXBRKpE9s=; h=Subject:To:References:From:Date:In-Reply-To; b=jpmb5sEwLCR8UHb/j6YD+hDCnkW5FT8mEt0Xxt/xzR57JnUmnwKbm1OWZY5dES8cv OUgVVXtOqls8QByJ9QIYeiFkIfo3VkyhxtYoyR79N1u7JKcc9zU7xqSAMxWWcdV8QQ 7CiTImpgKomP7aSyEOYipydrhTrknMTIcEE32chw= To: Jason Long , Xen-users References: <1815898490.515454.1626775089646.ref@mail.yahoo.com> <1815898490.515454.1626775089646@mail.yahoo.com> From: Pierre-Philipp Braun Message-ID: Date: Tue, 20 Jul 2021 16:58:21 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: <1815898490.515454.1626775089646@mail.yahoo.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit > When Dom0 is kind of a VM, then Xen Hypervisor running in a VM??? XEN is the hypervisor, some kind of micro-kernel, which boots first (type I hypervisor). Then comes the dom0 kernel, be it Linux or NetBSD. XEN tools are the userland utilities to control the hypervisor from within the dom0. Yes, the "control domain" or the "service console", as VMware used to call it at some time, is indeed some kind of a VM, but it has access to network and disk devices, to then share those to the unprivileged guests (domU). When you setup a bootloader manually (ideally MULTIBOOT2 capable), it becomes perfectly clear. Try to have a look at your boot-loader setup, you will see something gets loaded before the main system kernel. HTH -- Pierre-Philipp Braun SMTP Health Campaign: enforce STARTTLS and verify MX certificates From xen-users-bounces@lists.xenproject.org Tue Jul 20 15:37:59 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 20 Jul 2021 15:37:59 +0000 Received: from list by lists.xenproject.org with outflank-mailman.158830.292188 (Exim 4.92) (envelope-from ) id 1m5roW-0008RU-5l; Tue, 20 Jul 2021 15:37:44 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 158830.292188; Tue, 20 Jul 2021 15:37:44 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5roW-0008RM-2V; Tue, 20 Jul 2021 15:37:44 +0000 Received: by outflank-mailman (input) for mailman id 158830; Tue, 20 Jul 2021 15:37:42 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5roU-0008RG-K9 for xen-users@lists.xenproject.org; Tue, 20 Jul 2021 15:37:42 +0000 Received: from sonic314-13.consmr.mail.bf2.yahoo.com (unknown [74.6.132.123]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 6af04e8c-e970-11eb-8baa-12813bfff9fa; Tue, 20 Jul 2021 15:37:40 +0000 (UTC) Received: from sonic.gate.mail.ne1.yahoo.com by sonic314.consmr.mail.bf2.yahoo.com with HTTP; Tue, 20 Jul 2021 15:37:40 +0000 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 6af04e8c-e970-11eb-8baa-12813bfff9fa DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1626795460; bh=vLmtTOe2OGqDJqA7pRDqUuzDuOJpaXF32yBavtxPYNc=; h=Date:From:Reply-To:To:In-Reply-To:References:Subject:From:Subject:Reply-To; b=O5xQMCmQMGtkNuscrsPRIPmuIqGUQ6p4ddBi/pyKWyoSgMF/YA+bVsO7uxNMhv7ifVySbxyZ3mn7Kip6gr1WL9dzXMtodfwSGS0Rq3tZ/g7HR06GmH3S4kpfr8IIaTX7kOsCXPNBICN7PKa8Czz1vXMRjkQyjx9dk1TEV78F+cW62y3b+fP5oB5cMQx2gX2BVAP1+laBgolUc73QYvIDIsggIHiTW64SMr/jFCEMJfKPjEbgwm5UR6t/FK+GWOUI856/N/Xtdx22uYXbo5wj+nR1+hznEVF+OQgUIA9sHVWY/yhzuz9ThPt906k4toc7xYv2HQ+4T1+WIWmON+He0A== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1626795460; bh=PQTUmi4xE1CFllvUDdDFoCcGnYYl7pCuFlIFzYFZR+g=; h=X-Sonic-MF:Date:From:To:Subject:From:Subject; b=uBxd+JA8VcAe9MKesyO0LjgR61JrRiZfYgyEFDzqgxolxiimCPFNlNQXCxCzFiB4lvmdn1YJwjCT26HSSr4T7Kwhx8kEl89eR7Ry7+fTFcGVmDY4Iz81fuwYocR9uxlg+SLsRd7+IRZhR6Rcc7659LR6csITcvfVHEFf8eQqTlfso0YxyigtAn6DSnJ2x2v+IwB47ianQaKzE+qNzfkd5xZ3cIArvc4LjJ7Khf2QalZZjeopAKzfum7ZhKWXFb56yuznyakbylA7w3jSlStElOvQDipGsImlIizEC5smx2bs1ymo/p2+l/t+r5VpozHD43tp+kWOGzDmtRca26nSJA== X-YMail-OSG: hWMRjoAVM1kmtyAfBR06G15qk83Ken4949dn4nnzetuNedW0Pk.JU8y2LKGQ.QK qX0v7D10H4eLNWU_3E_1PqQWyJ.UPE2eY25cu7MgnUaaCneabYAmWd6WuiHcnetpdHIIw0gorUj2 cL3P8Os9U9YMo9LnXrAElH1NyIA3gCUUbKMj0HEKsXIOLTvw6dboNbw0Mve4adYk1Zw67Zu_3F.Z k4O5E7cJGIhyZLGmepXotLQRY_pOp_T3WZs6TulaTtbB6xBrZXtIdhIdm1N.ieKoZKxjLzy1fw8O MxBxowCFfDMvKT_yn99JxFt8TK4JdZGLAeYCdR1TtwtCLs0YEej5UGlNr3BR09H.Q0VjPrUsDbVf YI1G53G4AgnFCkvCq5lCGrGCDIFRwdvItz77q3zlwYp7e8SJ4dh5bbXshYXsnmqxBvbriRIApLCw _xaHj8e1ojCI2hlb3yCZX3T6YFwNLQE4ElGmj6rfDgoUweDoGH22U5G8UHRYr_zv3leeAQF5KfF0 KVRvLRHkKOaO9bNaZWUSPQjfwBzYt9kiAr0c6wRpWRQB_oVSjRb7POHDCnjSG8HSf1iTsSFHdhrn 31u3sKutW3yjY5T2HzOM9buQrbJEzYklE6fntg1cZM5Sf68exk077QRHw1P1u1nbivR.AcaTrZjz AmIp15.6EMniee8Dd_NYqn1GaVj4dUjZK12Ab.QFdB49GHbUB6ZlOTT3OGwx6tZuAzA6.vE8Kv5w I6KjipiZtXSCt75Bl4kdQrrox.4GA1gI2PbCaxESTCXSCqk7v.pt4hyPlrUkInn3VGUnJcAjs1c. 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MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_580035_255096763.1626795453418" X-Mailer: WebService/1.1.18469 YahooMailAndroidMobile Content-Length: 3712 ------=_Part_580035_255096763.1626795453418 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,Is Dom0 part of the Xen hypervisor or is the OS? Sent from Yahoo Mail on Android=20 =20 On Tue, Jul 20, 2021 at 7:29 PM, Pierre-Philipp Braun wrote: > When Dom0 is kind of a VM, then Xen Hypervisor running in a VM= ??? XEN is the hypervisor, some kind of micro-kernel, which boots first=20 (type I hypervisor).=C2=A0 Then comes the dom0 kernel, be it Linux or NetBS= D.=20 =C2=A0 XEN tools are the userland utilities to control the hypervisor from= =20 within the dom0.=C2=A0 Yes, the "control domain" or the "service console", = as=20 VMware used to call it at some time, is indeed some kind of a VM, but it=20 has access to network and disk devices, to then share those to the=20 unprivileged guests (domU). When you setup a bootloader manually (ideally MULTIBOOT2 capable), it=20 becomes perfectly clear.=C2=A0 Try to have a look at your boot-loader setup= ,=20 you will see something gets loaded before the main system kernel. HTH --=20 Pierre-Philipp Braun SMTP Health Campaign: enforce STARTTLS and verify MX certificates =20 ------=_Part_580035_255096763.1626795453418 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello,
Is Dom0 part of = the Xen hypervisor or is the OS?



On Tue, Jul 20, 2021 at 7:29 PM, Pierre-Philipp Braun=
<pbraun@nethence.com> wrote:
=
> When Dom0 is kind of a= VM, then Xen Hypervisor running in a VM???

XEN is = the hypervisor, some kind of micro-kernel, which boots first
(type I hypervisor).  Then comes the dom0 kernel, be it Linux or = NetBSD.
  XEN tools are the userland utilities to c= ontrol the hypervisor from
within the dom0.  Yes, t= he "control domain" or the "service console", as
VMware = used to call it at some time, is indeed some kind of a VM, but it
has access to network and disk devices, to then share those to th= e
unprivileged guests (domU).

When you setup a bootloader manually (ideally MULTIBOOT2 capable= ), it
becomes perfectly clear.  Try to have a look = at your boot-loader setup,
you will see something gets l= oaded before the main system kernel.

H= TH
--
Pierre-Philipp Braun
SMTP Health Campaign: enforce STARTTLS and verify MX certificates<https://nethence.com/smtp/
>
------=_Part_580035_255096763.1626795453418-- From xen-users-bounces@lists.xenproject.org Tue Jul 20 15:48:03 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 20 Jul 2021 15:48:03 +0000 Received: from list by lists.xenproject.org with outflank-mailman.158886.292337 (Exim 4.92) (envelope-from ) id 1m5ryI-0004zv-90; Tue, 20 Jul 2021 15:47:50 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 158886.292337; Tue, 20 Jul 2021 15:47:50 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5ryI-0004zn-60; Tue, 20 Jul 2021 15:47:50 +0000 Received: by outflank-mailman (input) for mailman id 158886; Tue, 20 Jul 2021 15:47:49 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5ryH-0004zZ-3l for xen-users@lists.xenproject.org; Tue, 20 Jul 2021 15:47:49 +0000 Received: from xc.os3.su (unknown [62.210.110.7]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id d4531a71-e971-11eb-8baa-12813bfff9fa; Tue, 20 Jul 2021 15:47:48 +0000 (UTC) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: d4531a71-e971-11eb-8baa-12813bfff9fa Subject: Re: A question about Dom0. DKIM-Signature: v=1; a=rsa-sha1; c=simple/simple; d=nethence.com; s=sep2020; t=1626796069; bh=qMeqIhqWyeMBIPDBcbwHTSJWx/A=; h=Subject:To:References:From:Date:In-Reply-To; b=Yrk6mYAqY5MgWLztfQde2OWi2ZHsScu7YGlbmYEKlu5cTun2WiHxmuawZVovjAXfh 8Q+Pqbixuf6mY7aFRO+LtXPt1FcHjRIGxMdhSR+giSuoNOonChjwfOMiYrnz49zv/A AWTgXAlj7ge+Z3VqVrKxpZTVSbm7QMxiYnycJCKs= To: Jason Long , Xen-users References: <1815898490.515454.1626775089646.ref@mail.yahoo.com> <1815898490.515454.1626775089646@mail.yahoo.com> <1808040049.580036.1626795453419@mail.yahoo.com> From: Pierre-Philipp Braun Message-ID: <687cc98a-5a3a-bf69-f7fb-fbaeec14ad8a@nethence.com> Date: Tue, 20 Jul 2021 17:46:26 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 In-Reply-To: <1808040049.580036.1626795453419@mail.yahoo.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit On 20/07/2021 17:37, Jason Long wrote: > Hello, > Is Dom0 part of the Xen hypervisor or is the OS? It's the OS plus some tools (xen-tools). I suggest you experiment more with Community XEN and all those things will clarify by themselves. -- Pierre-Philipp Braun SMTP Health Campaign: enforce STARTTLS and verify MX certificates From xen-users-bounces@lists.xenproject.org Tue Jul 20 20:22:40 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 20 Jul 2021 20:22:40 +0000 Received: from list by lists.xenproject.org with outflank-mailman.158973.292498 (Exim 4.92) (envelope-from ) id 1m5wFb-0005G0-Bt; Tue, 20 Jul 2021 20:21:59 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 158973.292498; Tue, 20 Jul 2021 20:21:59 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5wFb-0005Ft-8j; Tue, 20 Jul 2021 20:21:59 +0000 Received: by outflank-mailman (input) for mailman id 158973; Tue, 20 Jul 2021 20:21:58 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5wFZ-0005Fn-W9 for xen-users@lists.xenproject.org; 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MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_662766_1095632508.1626812511023" X-Mailer: WebService/1.1.18469 YahooMailAndroidMobile Content-Length: 2459 ------=_Part_662766_1095632508.1626812511023 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Thanks.Thus, Xen installed on the Dom0? Sent from Yahoo Mail on Android=20 =20 On Tue, Jul 20, 2021 at 8:17 PM, Pierre-Philipp Braun wrote: On 20/07/2021 17:37, Jason Long wrote: > Hello, > Is Dom0 part of the Xen hypervisor or is the OS? It's the OS plus some tools (xen-tools).=C2=A0 I suggest you experiment mor= e=20 with Community XEN and all those things will clarify by themselves. --=20 Pierre-Philipp Braun SMTP Health Campaign: enforce STARTTLS and verify MX certificates =20 ------=_Part_662766_1095632508.1626812511023 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Thanks.
Thus, Xen insta= lled on the Dom0?



On Tue, Jul 20, 2021 at 8:17 PM, Pierre-Philipp Braun
<= pbraun@nethence.com> wrote:
On 20/07/2021 = 17:37, Jason Long wrote:
> Hello,
&g= t; Is Dom0 part of the Xen hypervisor or is the OS?

It's the OS plus some tools (xen-tools).  I suggest you = experiment more
with Community XEN and all those things = will clarify by themselves.
<= br clear=3D"none">
--
Pierre-Philipp B= raun
SMTP Health Campaign: enforce STARTTLS and verify MX= certificates
<https://nethence.com/smtp/>

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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: onlineschubla.de X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: FRYP281MB0582.DEUP281.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: e8a1054f-dd43-4254-5aec-08d94bc532ea X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jul 2021 21:27:38.4027 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bfc8b046-4d00-4e98-8679-43c06bdec9db X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 0nscG229qWSVwM2T2hgtd7tFVm/kYmB+2+5xWxvdGBx88GXxl279bWHb8wsCoJ+9EHaEEO01atjNVx83xbDVmA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: FR2P281MB0449 > Date: Tue, 20 Jul 2021 09:58:09 +0000 (UTC) > From: Jason Long > To: Xen-users > Subject: A question about Dom0. >=20 > ?When Dom0 is kind of a VM, then Xen Hypervisor running in a VM??? >From what I know, the Xen Hypervisor is not running in a VM, but on "bare m= etal". There is one privileged VM called Dom0 which is used to control the = hypervisor and which provides drivers for the hardware. I recommend reading https://wiki.xenproject.org/wiki/Xen_Project_Beginners_= Guide (e. g. section "A brief look at Xen Project architecture") > Why PV on HVM removed? I don't know enough to give an answer to that one... 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: onlineschubla.de X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: FRYP281MB0582.DEUP281.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: 9004822a-4eeb-41b0-90eb-08d94bca71bb X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jul 2021 22:05:11.2424 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bfc8b046-4d00-4e98-8679-43c06bdec9db X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: dRXBRVcAXVWAYxo4zxNepVmjUy3FGB2muAISb7TP2yuMyrZkFTJTL3BWJAxvOlsbiCrC7quIfF0oPkWfUvNuXQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: FRYP281MB0471 > Date: Tue, 20 Jul 2021 09:58:09 +0000 (UTC) > From: Jason Long > To: Xen-users > Subject: A question about Dom0. > Message-ID: <1815898490.515454.1626775089646@mail.yahoo.com> > Content-Type: text/plain; charset=3D"utf-8" > > Why PV on HVM removed? Just found this, seems to be more detailed than the page I recommended earl= ier, perhaps this answers also your second question: https://wiki.xenprojec= t.org/wiki/Xen_Project_Software_Overview Best regards, Paul From xen-users-bounces@lists.xenproject.org Tue Jul 20 23:45:12 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 20 Jul 2021 23:45:12 +0000 Received: from list by lists.xenproject.org with outflank-mailman.159051.292600 (Exim 4.92) (envelope-from ) id 1m5zPd-0004jW-Gj; Tue, 20 Jul 2021 23:44:33 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 159051.292600; Tue, 20 Jul 2021 23:44:33 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5zPd-0004jP-Dj; Tue, 20 Jul 2021 23:44:33 +0000 Received: by outflank-mailman (input) for mailman id 159051; Tue, 20 Jul 2021 23:44:32 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m5zPc-0004jJ-Td for xen-users@lists.xenproject.org; Tue, 20 Jul 2021 23:44:32 +0000 Received: from mail.bitfolk.com (unknown [2001:ba8:1f1:f019::25]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 7c34b507-d377-4776-a936-d34bf728f116; Tue, 20 Jul 2021 23:44:31 +0000 (UTC) Received: from andy by mail.bitfolk.com with local (Exim 4.89) (envelope-from ) id 1m5zPa-0000hB-KP for xen-users@lists.xenproject.org; Tue, 20 Jul 2021 23:44:30 +0000 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 7c34b507-d377-4776-a936-d34bf728f116 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=bitfolk.com ; s=alpha; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:To:From:Date:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=t9qZ8X2aN/jfBBf2igr/c4q6fw9AbzV/Yn8jx3ZmVP4=; b=FCKqepF+2b58nTFNIsoOo5vB6D vu6rNeh8vHuD4aPXISry2L4kZz1z94sHWROprXEin0r925kecoZ53FHZxcBDGB7jF0bqUT0sq2Za7 YNcSWJAjagfjVXB1Arg8SfdaCZW3m+4TXJRm0VXEzFtd8Cp+PAdHilAoIZwUZtqLoUSd2BYUlgkR0 WTc5u2G9MyDvndPtydBVZqMykpLt+O9tgQm2ZDLvE0bqjkn9+Cb3j399pr64/UEh2keSsqw/am2pr viuiOFor7EkyenfQXGS2djyCitFEW2wI2u5/mLWlrtzHlCWYOTcWRxjwrY5Qmxz1xjqwhQKjpfUVs qkCe2X2A==; Date: Tue, 20 Jul 2021 23:44:30 +0000 From: Andy Smith To: xen-users@lists.xenproject.org Subject: Re: A question about Dom0. Message-ID: <20210720234430.hsfrkz2kmh4rwd2v@bitfolk.com> References: <1815898490.515454.1626775089646.ref@mail.yahoo.com> <1815898490.515454.1626775089646@mail.yahoo.com> <1808040049.580036.1626795453419@mail.yahoo.com> <687cc98a-5a3a-bf69-f7fb-fbaeec14ad8a@nethence.com> <2024885795.662767.1626812511024@mail.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2024885795.662767.1626812511024@mail.yahoo.com> OpenPGP: id=BF15490B; url=http://strugglers.net/~andy/pubkey.asc X-URL: http://strugglers.net/wiki/User:Andy User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: andy@strugglers.net X-SA-Exim-Scanned: No (on mail.bitfolk.com); SAEximRunCond expanded to false Hello, On Tue, Jul 20, 2021 at 08:21:51PM +0000, Jason Long wrote: > Thus, Xen installed on the Dom0? The Xen hypervisor kernel image is usually stored inside what is the dom0's /boot directory but it is booted directly by the hardware/firmware before dom0 exists, because dom0 is just another VM that the hypervisor then runs. The image also might not be stored inside the dom0 filesystem as it might be booted over the network or whatever. Also a full Xen install is not functional without its management tools, of which the dom0 operating system and several software packages on it are a part. So whether you consider Xen to be installed "on" the dom0 is really a question of perspective. You aren't asking specific enough questions to get a simple short answer. Cheers, Andy From xen-users-bounces@lists.xenproject.org Wed Jul 21 08:31:54 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Wed, 21 Jul 2021 08:31:54 +0000 Received: from list by lists.xenproject.org with outflank-mailman.159205.292859 (Exim 4.92) (envelope-from ) id 1m67dH-0004a9-0s; Wed, 21 Jul 2021 08:31:11 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 159205.292859; Wed, 21 Jul 2021 08:31:10 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m67dG-0004a1-Sy; Wed, 21 Jul 2021 08:31:10 +0000 Received: by outflank-mailman (input) for mailman id 159205; Wed, 21 Jul 2021 08:31:09 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m67dF-0004Zv-5t for xen-users@lists.xenproject.org; Wed, 21 Jul 2021 08:31:09 +0000 Received: from sonic316-13.consmr.mail.bf2.yahoo.com (unknown [74.6.130.123]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 804e15a7-e7a4-49af-90b5-dd732549b149; 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MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Mailer: WebService/1.1.18469 YMailNorrin Content-Length: 1055 Thank you Andy. Thus, Xen Hypervisor runs directly on the hardware without any OS? If yes, after it, the Dom0 (an Operating System) run as a VM by Xen Hypervisor? On Wednesday, July 21, 2021, 04:14:43 AM GMT+4:30, Andy Smith wrote: Hello, On Tue, Jul 20, 2021 at 08:21:51PM +0000, Jason Long wrote: > Thus, Xen installed on the Dom0? The Xen hypervisor kernel image is usually stored inside what is the dom0's /boot directory but it is booted directly by the hardware/firmware before dom0 exists, because dom0 is just another VM that the hypervisor then runs. The image also might not be stored inside the dom0 filesystem as it might be booted over the network or whatever. Also a full Xen install is not functional without its management tools, of which the dom0 operating system and several software packages on it are a part. So whether you consider Xen to be installed "on" the dom0 is really a question of perspective. You aren't asking specific enough questions to get a simple short answer. Cheers, Andy From xen-users-bounces@lists.xenproject.org Wed Jul 21 10:14:54 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Wed, 21 Jul 2021 10:14:54 +0000 Received: from list by lists.xenproject.org with outflank-mailman.159266.292971 (Exim 4.92) (envelope-from ) id 1m69Ey-0003Tw-RB; Wed, 21 Jul 2021 10:14:12 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 159266.292971; Wed, 21 Jul 2021 10:14:12 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m69Ey-0003Tm-Mp; Wed, 21 Jul 2021 10:14:12 +0000 Received: by outflank-mailman (input) for mailman id 159266; Wed, 21 Jul 2021 10:14:12 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m69Ex-0003Td-S9 for xen-users@lists.xenproject.org; Wed, 21 Jul 2021 10:14:11 +0000 Received: from mail-wm1-x32f.google.com (unknown [2a00:1450:4864:20::32f]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 2f5c14a7-bce4-4625-b883-a646f06baff0; Wed, 21 Jul 2021 10:14:11 +0000 (UTC) Received: by mail-wm1-x32f.google.com with SMTP id u8-20020a7bcb080000b02901e44e9caa2aso659683wmj.4 for ; Wed, 21 Jul 2021 03:14:10 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 2f5c14a7-bce4-4625-b883-a646f06baff0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=vDbQTtxYig4BqAtN25cVRgT5ldoyf8Yq9VTK2iSxWrY=; b=MSjbeeDSaT+8KRGB9ZKKOHJsbuhbzYIM3GxMAUPCJ0Z917zcLpo1Y9i1Jg95FTkyO+ EUJ5z7xFTnh1hE5hG+FT9aEW70ay2mtHOpYWr6k9qkue1+NOYOswiOv5u9AmvHMSvlJu z3lRbw+00kB7jI3OIleot/fbWT3D58R6D3K+NDP2eYaMNo9j5ixsWAVQc7DXRk1bjB1B iD8nvsffUnqUGYA+VNWr3AFC/MpD8e71DsWpKXy7pA6kEV33bCJAcBIs8ElfX/uyr4k9 b+XW0vNS9139NHgFo7deiQQ6yGDMW8lvZUsaW7oVw8mipGGd4JCTq0k89E3cq+0+3Sq0 2HSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=vDbQTtxYig4BqAtN25cVRgT5ldoyf8Yq9VTK2iSxWrY=; b=TCVJTGPEnju6N6SmnTl/hsaENlZ4HLnd1R+RV6D2IOhWH2TNSwvLGia/uxwoW1Xavd ZrocbmeMHE3dBeM/9J3KB5PQPvo97BigeHhXyq/ArXLOk6iYlOceyYobF4ciF/1YYZqX jZKcFTGPXizsH6Tqd1ltQ0/Ctv17aLc3bclfgNjygIn2zwDfG8p8Tq3jJj99q8PAVewK jwBQqkGASw3iN1bso7j37hWhf/EVsNsQSku9R60bhY6IN3v6UZmBJKmJsazMMmKEFvQj NpgCWYAeXtPe119UDu2OPZX+bk52RcnOJFoE5CrbyPxwCgvLHYhUiX1mFJgncTbqq6i9 wALA== X-Gm-Message-State: AOAM530SehPO6PQ+SJzFEG/X61XEh1KDNbyGYMzbx5mXWOTh6C264Rw+ JpXGmM/ANWinLF7s5gJU6uIl0KpYEnEEPPC+i18= X-Google-Smtp-Source: ABdhPJyoXyo6YcMZGPM4lKOGOPjqIBbc9uK9q4T3SzbxgqGhsYTRD78XvWsytIU2CRPFsxsHUFW0u48f5jHoVKLpugw= X-Received: by 2002:a1c:7314:: with SMTP id d20mr3183790wmb.156.1626862450137; Wed, 21 Jul 2021 03:14:10 -0700 (PDT) MIME-Version: 1.0 References: <1815898490.515454.1626775089646.ref@mail.yahoo.com> <1815898490.515454.1626775089646@mail.yahoo.com> <1808040049.580036.1626795453419@mail.yahoo.com> <687cc98a-5a3a-bf69-f7fb-fbaeec14ad8a@nethence.com> <2024885795.662767.1626812511024@mail.yahoo.com> <20210720234430.hsfrkz2kmh4rwd2v@bitfolk.com> <1447110703.759010.1626856225846@mail.yahoo.com> In-Reply-To: <1447110703.759010.1626856225846@mail.yahoo.com> From: =?UTF-8?Q?Charles_Gon=C3=A7alves?= Date: Wed, 21 Jul 2021 11:13:35 +0100 Message-ID: Subject: Re: A question about Dom0. To: Jason Long Cc: "xen-users@lists.xenproject.org" , Andy Smith Content-Type: multipart/alternative; boundary="000000000000705f4105c79f6e14" --000000000000705f4105c79f6e14 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Just to add to the discussion, there is also the possiility of runing Xen without the dom0. http://xenbits.xen.org/docs/unstable/features/dom0less.html Atenciosamente, *Charles Ferreira Gon=C3=A7alves * On Wed, Jul 21, 2021 at 9:31 AM Jason Long wrote: > Thank you Andy. > Thus, Xen Hypervisor runs directly on the hardware without any OS? If yes= , > after it, the Dom0 (an Operating System) run as a VM by Xen Hypervisor? > > > > > > > On Wednesday, July 21, 2021, 04:14:43 AM GMT+4:30, Andy Smith < > andy@strugglers.net> wrote: > > > > > > Hello, > > On Tue, Jul 20, 2021 at 08:21:51PM +0000, Jason Long wrote: > > Thus, Xen installed on the Dom0? > > > The Xen hypervisor kernel image is usually stored inside what is the > dom0's /boot directory but it is booted directly by the > hardware/firmware before dom0 exists, because dom0 is just another > VM that the hypervisor then runs. > > The image also might not be stored inside the dom0 filesystem as it > might be booted over the network or whatever. > > Also a full Xen install is not functional without its management > tools, of which the dom0 operating system and several software > packages on it are a part. > > So whether you consider Xen to be installed "on" the dom0 is really > a question of perspective. You aren't asking specific enough > questions to get a simple short answer. > > Cheers, > Andy > > > > --000000000000705f4105c79f6e14 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Just to add to the discussion, there is also the possiilit= y of runing=C2=A0Xen without the dom0.


Atenciosamente,
Charles Ferreira Gon= =C3=A7alves




On Wed, Jul 21, 2021= at 9:31 AM Jason Long <hack3rcon= @yahoo.com> wrote:
Thank you Andy.
Thus, Xen Hypervisor runs directly on the hardware without any OS? If yes, = after it, the Dom0 (an Operating System) run as a VM by Xen Hypervisor?






On Wednesday, July 21, 2021, 04:14:43 AM GMT+4:30, Andy Smith <andy@strugglers.net&g= t; wrote:





Hello,

On Tue, Jul 20, 2021 at 08:21:51PM +0000, Jason Long wrote:
> Thus, Xen installed on the Dom0?


The Xen hypervisor kernel image is usually stored inside what is the
dom0's /boot directory but it is booted directly by the
hardware/firmware before dom0 exists, because dom0 is just another
VM that the hypervisor then runs.

The image also might not be stored inside the dom0 filesystem as it
might be booted over the network or whatever.

Also a full Xen install is not functional without its management
tools, of which the dom0 operating system and several software
packages on it are a part.

So whether you consider Xen to be installed "on" the dom0 is real= ly
a question of perspective. You aren't asking specific enough
questions to get a simple short answer.

Cheers,
Andy



--000000000000705f4105c79f6e14-- From xen-users-bounces@lists.xenproject.org Mon Jul 26 22:20:14 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Mon, 26 Jul 2021 22:20:14 +0000 Received: from list by lists.xenproject.org with outflank-mailman.161010.295640 (Exim 4.92) (envelope-from ) id 1m88wR-0000FJ-KR; Mon, 26 Jul 2021 22:19:19 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 161010.295640; Mon, 26 Jul 2021 22:19:19 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m88wR-0000FB-GO; Mon, 26 Jul 2021 22:19:19 +0000 Received: by outflank-mailman (input) for mailman id 161010; Mon, 26 Jul 2021 22:19:19 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m88wR-0000F5-0A for xen-users@lists.xenproject.org; Mon, 26 Jul 2021 22:19:19 +0000 Received: from mail-pl1-x62a.google.com (unknown [2607:f8b0:4864:20::62a]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id b29f5599-9887-4b64-bd17-d11fa2b40980; Mon, 26 Jul 2021 22:19:17 +0000 (UTC) Received: by mail-pl1-x62a.google.com with SMTP id t21so13275964plr.13 for ; Mon, 26 Jul 2021 15:19:17 -0700 (PDT) Received: from vibe.barkdullak.us (29-121-237-24.static.gci.net. [24.237.121.29]) by smtp.gmail.com with ESMTPSA id w2sm649373pjq.5.2021.07.26.15.19.15 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Jul 2021 15:19:16 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: b29f5599-9887-4b64-bd17-d11fa2b40980 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=AMf7MpKv7WQzfgJM1Mv+flV08eE+hotkBSheOpy6tQw=; b=EWTJV2D+5nHm3bxTlvwTo0YYG6YkrztE3GmfJeAfQBXaU0Zk7PszxopjpitrQp7ZMf jOyU8C9CVpdYSn9ofZ4q/0LN3Lhu+FX2xXCmXDI5ySfDjMXuSfTp0tD6C5EMgPos4LnO G/QxBlQ91FJeM4rWpKRl9bbYcctQpK+wZt/0TnJOX0yXs4oKptwC+XRmQjYJbXsWFhfM 5NfQkIzw3PQpRk3Ww0eeBiHJ0nR3cLIentKHzCBbAHhArv16oH/rIQaY7FvzZnN58zUY +0pZkPlFE4dT1g3BGfrdBrfvBJ/7LV+NiR5FnB6ZnSdRdlRTMotX5/fbwy4SGGL2rvdr LtWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=AMf7MpKv7WQzfgJM1Mv+flV08eE+hotkBSheOpy6tQw=; b=fOE7yR+AyVMLOOxq2BFXhOtiZtPZqHHe7yJuX82CVp+fFX5pAhvV0J2F5fmkLIrq3w O6osGS6et4QOWH8ti5uTB7gAXiAIRMPQzED7h8hNxqZq5te6HhVAIT0bLlloRy0mYneN 1SPCwODzsR9HkSfv/9p8EVkUnnAcM73gCNoEXUcejJQuMwEykN0Xcgb36PnZYl8/SFyy NJ63rsGTOfNsrGAfNcpp+S2FPlxQOHM39xAxPnsTcHug/2qLMI/Cri/PhJP/JAoaXl6n A4HeTALDL+doo2XvO1SSYPcEw8kzxojzN9kytjUb4bsO/ccpiW604gACURz44xxHuYaU Ledg== X-Gm-Message-State: AOAM531Mt9PgVO90R1/YL9j9XOZ2E4IF9PIb2stftYAtbQCl/H7SkfWq A7Xh6yB4+qI95LVmm7p75kMcKTe7oQ8= X-Google-Smtp-Source: ABdhPJzpAcxdpoDIZwj4nmk470ji8jurW1xh/DALYqxniCNd/SFLuwP5qpnUjI8eZY1k7PTexyCQFw== X-Received: by 2002:a65:550a:: with SMTP id f10mr20183035pgr.155.1627337956559; Mon, 26 Jul 2021 15:19:16 -0700 (PDT) Subject: Revisiting Slow Apt (actually disk write) To: xen-users@lists.xenproject.org References: <1a639af0-babe-8072-111f-b5c0a17220c5@gmail.com> <75cd4db6-73ee-ead8-c536-6f654109c612@gmail.com> From: TheBearAK Message-ID: Date: Mon, 26 Jul 2021 14:19:14 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sorry for the long message, but wanted to give a lack-of-progress report Did a lot of troubleshooting but it hasn’t gotten me very far: System:  SuperMicro               Xeon E3-1230 V3 @ 3.3 Ghz              12 GB RAM              Physical Disk:  4 x 2 TB ST2000NM0033 - Enterprise Dom0 OS:  Debian Buster 10.10, kernel 4.19.0-16-amd64                  Xen 4.11 DomUs:  All run debian buster as well. they are using Disk.Img for their swap and root drives.  All have at least 1 GB of RAM allocated.  My test VM has 2GB. When I ran debian wheezy, I was not having this problem. Dom0 is fast in disk read and writes. Problem:   DomU's Seem to be very slow disk writes.  For example, if I just to an "apt update" this is my output: Get:1 http://security.debian.org buster/updates InRelease [65.4 kB] Get:2 http://ftp.us.debian.org/debian buster InRelease [122 kB] Get:3 http://security.debian.org buster/updates/main Sources [195 kB] Get:4 http://security.debian.org buster/updates/main amd64 Packages [297 kB] Get:5 http://ftp.us.debian.org/debian buster/non-free Sources [85.7 kB] Get:6 http://ftp.us.debian.org/debian buster/main Sources [7836 kB] Get:7 http://ftp.us.debian.org/debian buster/contrib Sources [42.5 kB] Get:8 http://ftp.us.debian.org/debian buster/main amd64 Packages [7907 kB] Get:9 http://ftp.us.debian.org/debian buster/main Translation-en [5968 kB] Get:10 http://ftp.us.debian.org/debian buster/contrib amd64 Packages [50.1 kB] Get:11 http://ftp.us.debian.org/debian buster/contrib Translation-en [44.2 kB] Get:12 http://ftp.us.debian.org/debian buster/non-free amd64 Packages [87.7 kB] Get:13 http://ftp.us.debian.org/debian buster/non-free Translation-en [88.9 kB] Fetched 22.7 MB in 52min 3s (7277 B/s) Reading package lists... Done Notice that it says "52min 3s", this is something that Dom0 takes about 3 seconds to do to the same servers.  Meaning, it is not a network issue. What I've tried:  - I first went through the I/O tweaks from the xen wiki pages. Zero effect  - Moved all the DomUs off to another server except one (tester).  - Formatted and reinstalled entire OS from scratch on Dom0.  - Tried using LVM disk instead of disk images.   Slight improvement, but still extremely slow.  - Tried using physical disk, dedicating one drive entirely to the test DomU, mounting with "phys" in the config.   This was also a slight improvement, but still very slow disk writes. "top" on the DomU shows WA very high while trying to get the update.  Drops to <1 when idle.  All other "top" values are <1. I thought I solved it by going back to an earlier kernel, 4.19.0-14-amd64, and I tried doing that again and it had zero effect this time. Is it possible that there is a kernel flag that is turned off that would effect VM disk writes?   Reading seems to be normal speed.   Writing to a network drive from the DomU is very fast as well. Flag Info from /proc/cpu on Dom0 flags        : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc cpuid pni pclmulqdq monitor est ssse3 cx16 sse4_1 sse4_2 popcnt xsave avx f16c rdrand hypervisor lahf_lm cpuid_fault ssbd ibrs ibpb stibp fsgsbase erms xsaveopt md_clear From xen-users-bounces@lists.xenproject.org Tue Jul 27 17:43:36 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Tue, 27 Jul 2021 17:43:36 +0000 Received: from list by lists.xenproject.org with outflank-mailman.161277.296135 (Exim 4.92) (envelope-from ) id 1m8R6F-0003aB-M7; Tue, 27 Jul 2021 17:42:39 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 161277.296135; Tue, 27 Jul 2021 17:42:39 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m8R6F-0003a3-HM; Tue, 27 Jul 2021 17:42:39 +0000 Received: by outflank-mailman (input) for mailman id 161277; Tue, 27 Jul 2021 17:42:38 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m8R6E-0003Zx-D3 for xen-users@lists.xenproject.org; Tue, 27 Jul 2021 17:42:38 +0000 Received: from mail-pl1-x62b.google.com (unknown [2607:f8b0:4864:20::62b]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id d5572b0c-2f0d-4bef-9988-a4fd8d1d55bf; Tue, 27 Jul 2021 17:42:36 +0000 (UTC) Received: by mail-pl1-x62b.google.com with SMTP id q2so748940plr.11 for ; Tue, 27 Jul 2021 10:42:36 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: d5572b0c-2f0d-4bef-9988-a4fd8d1d55bf DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=51x3E1B/Ws/wTCmkKKIcL7Kn41yxSD7rynIBUP1Y7LQ=; b=bc9LRWPO8xXFpSR5wrm6tTQBCnJLH+QhsOFvCk+1dZ+tMsh8SE9+9cw7Mm5tWvRjvv Ymc0Y9V/bWu3sJND3WhYcd2TPeM59+8K+y2BepjTsBs/OTpwOEjcDEHynjH7DObVTgfI b8Hkbl4TolzYG4bhTQs7wAN8kSOQfxm+weHDGXVJL86tldNtm6o4wFJjcgoo5/jmIvaX 1bl11/wOQPWz6wu9RYoJ5TzjMD1mI8C4v12uRga09M9dz2XjeY1Xc7NbI9XFP45DuuoI 3W8DzMsEWiiqr1VDafSxDgoWx2XXqW5mlkUgF13UNWbD7R+oiCRoCWr+PJpDrqiQpJv2 BuXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=51x3E1B/Ws/wTCmkKKIcL7Kn41yxSD7rynIBUP1Y7LQ=; b=OxXeFzUXqqPhzhaDcwyMoFqz6yaSD5PCyrc/X2VLtZbb2RSfvY82cn6M8GYZdZSvTB kuXA90v4UZGh0UruebiVCZXtt/bi7OHDgdOaMSwN3lPMQffLm9C6qPDb4B8vFm8stH/Q zSP1TVfo3uKXb2dDxzhByU/8amNDTiNwFrqhLNAPKrKJXsezkyS88a/u0XbcGjvP8NJv RY5sGUpahBjYZiIO6pCCqA9KN4VFpwl3XjVAXilLw3hpsQL2VwxFyRHtzsR/a0vOkM6X azVmzFh4mLKP98vSr2dP/9RvPOCakidCPKqUz4x81wHb+D9GIFpEgBGkGj0ENlJ15dX1 fwYw== X-Gm-Message-State: AOAM533xU0Lu3x2EOXimpDq1dWbNjrVEF2d2oiYqOcbPhtv/w5FSECxo YMKGT9DLImUlgfg67E6mfrhZCTrYv9XaUiyS9fg= X-Google-Smtp-Source: ABdhPJz00vyP2PVar5EvUBdFaJtMwC7LMT1IFCV5sGO3D+67oNFeuIAXZYTEaIvZ9JSIeSK2zbOpILz6IZUiY62gg24= X-Received: by 2002:a63:358:: with SMTP id 85mr24896131pgd.258.1627407755885; Tue, 27 Jul 2021 10:42:35 -0700 (PDT) MIME-Version: 1.0 References: <1a639af0-babe-8072-111f-b5c0a17220c5@gmail.com> <75cd4db6-73ee-ead8-c536-6f654109c612@gmail.com> In-Reply-To: From: Chris Myers Date: Tue, 27 Jul 2021 12:42:24 -0500 Message-ID: Subject: Re: Revisiting Slow Apt (actually disk write) To: TheBearAK Cc: xen-users@lists.xenproject.org Content-Type: multipart/alternative; boundary="00000000000031bfec05c81e6505" --00000000000031bfec05c81e6505 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Out of curiosity is it all disk activity or just apt-related? Eg. how does dd if=3D/dev/zero of=3Dblah bs=3D1M count=3D512 look? I'm running a similar-ish config as you (asrock "J" motherboards and SSD-backed LVM storage instead of regular hard drives) and thus far am not experiencing that specific issue. I have had weird stuff happen with other motherboards however, in one case where activity on any domu (including dom0) incurred a large "st"eal, unless the VM was pinned to one specific dedicated CPU. I never did figure that one out; even went as far as turning off all ACPI stuff just in case it was interfering. On Mon, Jul 26, 2021 at 5:19 PM TheBearAK wrote: > Sorry for the long message, but wanted to give a lack-of-progress report > > Did a lot of troubleshooting but it hasn=E2=80=99t gotten me very far: > > > System: SuperMicro > Xeon E3-1230 V3 @ 3.3 Ghz > 12 GB RAM > Physical Disk: 4 x 2 TB ST2000NM0033 - Enterprise > > Dom0 OS: Debian Buster 10.10, kernel 4.19.0-16-amd64 > Xen 4.11 > > DomUs: All run debian buster as well. they are using Disk.Img for their > swap and root drives. All have at least 1 GB of RAM allocated. My test > VM has 2GB. > > When I ran debian wheezy, I was not having this problem. > > Dom0 is fast in disk read and writes. > > Problem: DomU's Seem to be very slow disk writes. For example, if I > just to an "apt update" this is my output: > > Get:1 http://security.debian.org buster/updates InRelease [65.4 kB] > Get:2 http://ftp.us.debian.org/debian buster InRelease [122 kB] > Get:3 http://security.debian.org buster/updates/main Sources [195 kB] > Get:4 http://security.debian.org buster/updates/main amd64 Packages [297 > kB] > Get:5 http://ftp.us.debian.org/debian buster/non-free Sources [85.7 kB] > Get:6 http://ftp.us.debian.org/debian buster/main Sources [7836 kB] > Get:7 http://ftp.us.debian.org/debian buster/contrib Sources [42.5 kB] > Get:8 http://ftp.us.debian.org/debian buster/main amd64 Packages [7907 kB= ] > Get:9 http://ftp.us.debian.org/debian buster/main Translation-en [5968 kB= ] > Get:10 http://ftp.us.debian.org/debian buster/contrib amd64 Packages > [50.1 kB] > Get:11 http://ftp.us.debian.org/debian buster/contrib Translation-en > [44.2 kB] > Get:12 http://ftp.us.debian.org/debian buster/non-free amd64 Packages > [87.7 kB] > Get:13 http://ftp.us.debian.org/debian buster/non-free Translation-en > [88.9 kB] > Fetched 22.7 MB in 52min 3s (7277 B/s) > Reading package lists... Done > > Notice that it says "52min 3s", this is something that Dom0 takes about > 3 seconds to do to the same servers. Meaning, it is not a network issue. > > What I've tried: > - I first went through the I/O tweaks from the xen wiki pages. Zero > effect > > - Moved all the DomUs off to another server except one (tester). > > - Formatted and reinstalled entire OS from scratch on Dom0. > > - Tried using LVM disk instead of disk images. Slight improvement, > but still extremely slow. > > - Tried using physical disk, dedicating one drive entirely to the test > DomU, mounting with "phys" in the config. This was also a slight > improvement, but still very slow disk writes. > > > "top" on the DomU shows WA very high while trying to get the update. > Drops to <1 when idle. All other "top" values are <1. > > I thought I solved it by going back to an earlier kernel, > 4.19.0-14-amd64, and I tried doing that again and it had zero effect > this time. > > > Is it possible that there is a kernel flag that is turned off that would > effect VM disk writes? Reading seems to be normal speed. Writing to > a network drive from the DomU is very fast as well. > > > Flag Info from /proc/cpu on Dom0 > > flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush > acpi mmx fxsr sse sse2 ss ht syscall nx > > lm constant_tsc rep_good nopl nonstop_tsc cpuid pni pclmulqdq monitor > est ssse3 cx16 sse4_1 sse4_2 > > popcnt xsave avx f16c rdrand hypervisor lahf_lm cpuid_fault ssbd ibrs > ibpb stibp fsgsbase erms xsaveopt md_clear > > > --=20 People use duct tape to fix everything....God used nails. http://www.myerscountry.net --00000000000031bfec05c81e6505 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Out of curiosity is it all d= isk activity or just apt-related? Eg. how does

dd if=3D/dev/zero of=3Dblah bs=3D1M count=3D512

look?

I'm running a similar-ish config as you (asrock "J" motherboards and= =20 SSD-backed LVM storage instead of regular hard drives) and thus far am=20 not experiencing that specific issue.

I h= ave had weird stuff happen with other motherboards however, in one case whe= re activity on=20 any domu (including dom0) incurred a large "st"eal, unless the VM= was=20 pinned to one specific dedicated CPU. I never did figure that one out;=20 even went as far as turning off all ACPI stuff just in case it was=20 interfering.

= On Mon, Jul 26, 2021 at 5:19 PM TheBearAK <thebearak@gmail.com> wrote:
Sorry for the long message, but wanted to give= a lack-of-progress report

Did a lot of troubleshooting but it hasn=E2=80=99t gotten me very far:


System:=C2=A0 SuperMicro
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 =C2=A0 =C2=A0 Xeon = E3-1230 V3 @ 3.3 Ghz
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 =C2=A0 =C2=A0 12 GB RAM =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 Physical Disk:= =C2=A0 4 x 2 TB ST2000NM0033 - Enterprise

Dom0 OS:=C2=A0 Debian Buster 10.10, kernel 4.19.0-16-amd64
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 Xen 4.11

DomUs:=C2=A0 All run debian buster as well. they are using Disk.Img for the= ir
swap and root drives.=C2=A0 All have at least 1 GB of RAM allocated.=C2=A0 = My test
VM has 2GB.

When I ran debian wheezy, I was not having this problem.

Dom0 is fast in disk read and writes.

Problem:=C2=A0=C2=A0 DomU's Seem to be very slow disk writes.=C2=A0 For= example, if I
just to an "apt update" this is my output:

Get:1 http://security.debian.org buster/updates InRelease [65.4 kB] Get:2 http://ftp.us.debian.org/debian buster InRelease [122 kB] Get:3 http://security.debian.org buster/updates/main Sources [195 kB]<= br> Get:4 http://security.debian.org buster/updates/main amd64 Packages [2= 97 kB]
Get:5 http://ftp.us.debian.org/debian buster/non-free Sources [85= .7 kB]
Get:6 http://ftp.us.debian.org/debian buster/main Sources [7836 k= B]
Get:7 http://ftp.us.debian.org/debian buster/contrib Sources [42.= 5 kB]
Get:8 http://ftp.us.debian.org/debian buster/main amd64 Packages = [7907 kB]
Get:9 http://ftp.us.debian.org/debian buster/main Translation-en = [5968 kB]
Get:10 http://ftp.us.debian.org/debian buster/contrib amd64 Packa= ges
[50.1 kB]
Get:11 http://ftp.us.debian.org/debian buster/contrib Translation= -en
[44.2 kB]
Get:12 http://ftp.us.debian.org/debian buster/non-free amd64 Pack= ages
[87.7 kB]
Get:13 http://ftp.us.debian.org/debian buster/non-free Translatio= n-en
[88.9 kB]
Fetched 22.7 MB in 52min 3s (7277 B/s)
Reading package lists... Done

Notice that it says "52min 3s", this is something that Dom0 takes= about
3 seconds to do to the same servers.=C2=A0 Meaning, it is not a network iss= ue.

What I've tried:
=C2=A0=C2=A0- I first went through the I/O tweaks from the xen wiki pages. = Zero effect

=C2=A0=C2=A0- Moved all the DomUs off to another server except one (tester)= .

=C2=A0=C2=A0- Formatted and reinstalled entire OS from scratch on Dom0.

=C2=A0=C2=A0- Tried using LVM disk instead of disk images.=C2=A0=C2=A0 Slig= ht improvement,
but still extremely slow.

=C2=A0=C2=A0- Tried using physical disk, dedicating one drive entirely to t= he test
DomU, mounting with "phys" in the config.=C2=A0=C2=A0 This was al= so a slight
improvement, but still very slow disk writes.


"top" on the DomU shows WA very high while trying to get the upda= te.=C2=A0
Drops to <1 when idle.=C2=A0 All other "top" values are <1.=

I thought I solved it by going back to an earlier kernel,
4.19.0-14-amd64, and I tried doing that again and it had zero effect
this time.


Is it possible that there is a kernel flag that is turned off that would effect VM disk writes?=C2=A0=C2=A0 Reading seems to be normal speed.=C2=A0= =C2=A0 Writing to
a network drive from the DomU is very fast as well.


Flag Info from /proc/cpu on Dom0

flags=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 : fpu de tsc msr pae mce cx8 api= c sep mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht syscall nx

lm constant_tsc rep_good nopl nonstop_tsc cpuid pni pclmulqdq monitor
est ssse3 cx16 sse4_1 sse4_2

popcnt xsave avx f16c rdrand hypervisor lahf_lm cpuid_fault ssbd ibrs
ibpb stibp fsgsbase erms xsaveopt md_clear




--
People use duct tape to fix everything....God used nails.
http://www.= myerscountry.net
--00000000000031bfec05c81e6505-- From xen-users-bounces@lists.xenproject.org Wed Jul 28 04:33:02 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Wed, 28 Jul 2021 04:33:02 +0000 Received: from list by lists.xenproject.org with outflank-mailman.161339.296243 (Exim 4.92) (envelope-from ) id 1m8bEt-00024v-9v; Wed, 28 Jul 2021 04:32:15 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 161339.296243; Wed, 28 Jul 2021 04:32:15 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m8bEt-00024C-07; Wed, 28 Jul 2021 04:32:15 +0000 Received: by outflank-mailman (input) for mailman id 161339; Wed, 28 Jul 2021 04:32:13 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m8bEr-000246-O1 for xen-users@lists.xenproject.org; Wed, 28 Jul 2021 04:32:13 +0000 Received: from mail-pj1-x102b.google.com (unknown [2607:f8b0:4864:20::102b]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 2112f42a-fbf1-4910-bc54-97ec48a95cfd; Wed, 28 Jul 2021 04:32:12 +0000 (UTC) Received: by mail-pj1-x102b.google.com with SMTP id mz5-20020a17090b3785b0290176ecf64922so8104764pjb.3 for ; Tue, 27 Jul 2021 21:32:11 -0700 (PDT) Received: from sybil.iarc.uaf.edu (161-68-174-206.gci.net. [206.174.68.161]) by smtp.gmail.com with ESMTPSA id j12sm5211212pfj.208.2021.07.27.21.32.09 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 27 Jul 2021 21:32:10 -0700 (PDT) X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: 2112f42a-fbf1-4910-bc54-97ec48a95cfd DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=X+omPWsPnUAGUCKhEQEo+jcVKmvH9c2RC9bTONXCM0Q=; b=lKU91gS6fCfUeVNCddkq1CXLlGNUuKbG5qn0zSus302fcvu3IjbZmPxBqKR0O/Geoz BWBbSswgCgJZqCLvd2SeC01N2gl8J3x8mIkfLYp0cTkibuHl2qmJ1dxi8nvP/f+nVMkJ hEt74t/tJudh5EeDkRX5YuF0Lwmmmaqr+1j3gEbcb/0CkDXhRkhKODdX3sWOnI2gSjIA O05yqhNWRQxfnZjZbD5dfMN1g4pLhtljpi7UwzLs8VOqnFR1GRo1LbNq7UBVb6gw8a5p IJOgrVz8nFtONBmV40ZGTa6qSFokOGSMMUPtDHwzfiDM4lYh7gpGdDvBPN1DYTHMnawO vC5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=X+omPWsPnUAGUCKhEQEo+jcVKmvH9c2RC9bTONXCM0Q=; b=XIbpLRS4cbYBsn3RL2Bz+vodUaR0o9GVhVczYSExNbWN++xQWIILjoKibLnSeao+yH CVbyEuzaMXKcsRIhcfv0QvY+3QNtNChawj1UPgUCLznyaOq2dhHFSbBvwKObyJCFdQns UljIMnwH+D+7id4SwlvxpcEPHvMA2kAJvV8b/EZw1pJgWZoxQrbfXE0h9P7NqlK//9XT sneeqHajPv8P2UPNf4jm+1Zqz+S6QaLuiyAmTv1fV5slVq/gGF87TNc5J5+ygdUr+Lf9 +ktM4nmGBRFOfiE56+p2BVUgPyZxpIa/eApxcKy3R2Bqoav8QxB/D60eHtW8A8q8nRUh u3tA== X-Gm-Message-State: AOAM532B3mjlMdd7azVMIfC7QZyWf4tdCp6Ror+0yUDBcpVMhBz5v0m8 /+X6ufg1WqsJ7Nd7TBksmygDw16QSPw= X-Google-Smtp-Source: ABdhPJyr8Daq6C0XPy9N/c9RvAWerftZ+I4nGh9o6KOAqacm3lnEpyPs/DChuAfDgmLbTzVEcNXmjw== X-Received: by 2002:a65:564f:: with SMTP id m15mr27021142pgs.346.1627446730584; Tue, 27 Jul 2021 21:32:10 -0700 (PDT) Subject: Re: Revisiting Slow Apt (actually disk write) To: xen-users@lists.xenproject.org References: <1a639af0-babe-8072-111f-b5c0a17220c5@gmail.com> <75cd4db6-73ee-ead8-c536-6f654109c612@gmail.com> From: TheBearAK Message-ID: <35968e4d-7e25-2885-1656-a988b6328ace@gmail.com> Date: Tue, 27 Jul 2021 20:32:07 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------35107F94956ADC776EDD657E" Content-Language: en-US This is a multi-part message in MIME format. --------------35107F94956ADC776EDD657E Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit All disk write activity.   Read is within normal. On 7/27/21 9:42 AM, Chris Myers wrote: > Out of curiosity is it all disk activity or just apt-related? Eg. how > does > > dd if=/dev/zero of=blah bs=1M count=512 > > look? > > I'm running a similar-ish config as you (asrock "J" motherboards and > SSD-backed LVM storage instead of regular hard drives) and thus far am > not experiencing that specific issue. > > I have had weird stuff happen with other motherboards however, in one > case where activity on any domu (including dom0) incurred a large > "st"eal, unless the VM was pinned to one specific dedicated CPU. I > never did figure that one out; even went as far as turning off all > ACPI stuff just in case it was interfering. > > On Mon, Jul 26, 2021 at 5:19 PM TheBearAK > wrote: > > Sorry for the long message, but wanted to give a lack-of-progress > report > > Did a lot of troubleshooting but it hasn’t gotten me very far: > > > System:  SuperMicro >                Xeon E3-1230 V3 @ 3.3 Ghz >               12 GB RAM >               Physical Disk:  4 x 2 TB ST2000NM0033 - Enterprise > > Dom0 OS:  Debian Buster 10.10, kernel 4.19.0-16-amd64 >                   Xen 4.11 > > DomUs:  All run debian buster as well. they are using Disk.Img for > their > swap and root drives.  All have at least 1 GB of RAM allocated.  > My test > VM has 2GB. > > When I ran debian wheezy, I was not having this problem. > > Dom0 is fast in disk read and writes. > > Problem:   DomU's Seem to be very slow disk writes.  For example, > if I > just to an "apt update" this is my output: > > Get:1 http://security.debian.org > buster/updates InRelease [65.4 kB] > Get:2 http://ftp.us.debian.org/debian > buster InRelease [122 kB] > Get:3 http://security.debian.org > buster/updates/main Sources [195 kB] > Get:4 http://security.debian.org > buster/updates/main amd64 Packages [297 kB] > Get:5 http://ftp.us.debian.org/debian > buster/non-free Sources [85.7 kB] > Get:6 http://ftp.us.debian.org/debian > buster/main Sources [7836 kB] > Get:7 http://ftp.us.debian.org/debian > buster/contrib Sources [42.5 kB] > Get:8 http://ftp.us.debian.org/debian > buster/main amd64 Packages [7907 kB] > Get:9 http://ftp.us.debian.org/debian > buster/main Translation-en [5968 kB] > Get:10 http://ftp.us.debian.org/debian > buster/contrib amd64 Packages > [50.1 kB] > Get:11 http://ftp.us.debian.org/debian > buster/contrib Translation-en > [44.2 kB] > Get:12 http://ftp.us.debian.org/debian > buster/non-free amd64 Packages > [87.7 kB] > Get:13 http://ftp.us.debian.org/debian > buster/non-free Translation-en > [88.9 kB] > Fetched 22.7 MB in 52min 3s (7277 B/s) > Reading package lists... Done > > Notice that it says "52min 3s", this is something that Dom0 takes > about > 3 seconds to do to the same servers.  Meaning, it is not a network > issue. > > What I've tried: >   - I first went through the I/O tweaks from the xen wiki pages. > Zero effect > >   - Moved all the DomUs off to another server except one (tester). > >   - Formatted and reinstalled entire OS from scratch on Dom0. > >   - Tried using LVM disk instead of disk images.   Slight > improvement, > but still extremely slow. > >   - Tried using physical disk, dedicating one drive entirely to > the test > DomU, mounting with "phys" in the config.   This was also a slight > improvement, but still very slow disk writes. > > > "top" on the DomU shows WA very high while trying to get the update. > Drops to <1 when idle.  All other "top" values are <1. > > I thought I solved it by going back to an earlier kernel, > 4.19.0-14-amd64, and I tried doing that again and it had zero effect > this time. > > > Is it possible that there is a kernel flag that is turned off that > would > effect VM disk writes?   Reading seems to be normal speed. Writing to > a network drive from the DomU is very fast as well. > > > Flag Info from /proc/cpu on Dom0 > > flags        : fpu de tsc msr pae mce cx8 apic sep mca cmov pat > clflush > acpi mmx fxsr sse sse2 ss ht syscall nx > > lm constant_tsc rep_good nopl nonstop_tsc cpuid pni pclmulqdq monitor > est ssse3 cx16 sse4_1 sse4_2 > > popcnt xsave avx f16c rdrand hypervisor lahf_lm cpuid_fault ssbd ibrs > ibpb stibp fsgsbase erms xsaveopt md_clear > > > > > -- > People use duct tape to fix everything....God used nails. > > http://www.myerscountry.net --------------35107F94956ADC776EDD657E Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

All disk write activity.   Read is within normal.


On 7/27/21 9:42 AM, Chris Myers wrote:
Out of curiosity is it all disk activity or just apt-related? Eg. how does

dd if=/dev/zero of=blah bs=1M count=512

look?

I'm running a similar-ish config as you (asrock "J" motherboards and SSD-backed LVM storage instead of regular hard drives) and thus far am not experiencing that specific issue.

I have had weird stuff happen with other motherboards however, in one case where activity on any domu (including dom0) incurred a large "st"eal, unless the VM was pinned to one specific dedicated CPU. I never did figure that one out; even went as far as turning off all ACPI stuff just in case it was interfering.

On Mon, Jul 26, 2021 at 5:19 PM TheBearAK <thebearak@gmail.com> wrote:
Sorry for the long message, but wanted to give a lack-of-progress report

Did a lot of troubleshooting but it hasn’t gotten me very far:


System:  SuperMicro
               Xeon E3-1230 V3 @ 3.3 Ghz
              12 GB RAM
              Physical Disk:  4 x 2 TB ST2000NM0033 - Enterprise

Dom0 OS:  Debian Buster 10.10, kernel 4.19.0-16-amd64
                  Xen 4.11

DomUs:  All run debian buster as well. they are using Disk.Img for their
swap and root drives.  All have at least 1 GB of RAM allocated.  My test
VM has 2GB.

When I ran debian wheezy, I was not having this problem.

Dom0 is fast in disk read and writes.

Problem:   DomU's Seem to be very slow disk writes.  For example, if I
just to an "apt update" this is my output:

Get:1 http://security.debian.org buster/updates InRelease [65.4 kB]
Get:2 http://ftp.us.debian.org/debian buster InRelease [122 kB]
Get:3 http://security.debian.org buster/updates/main Sources [195 kB]
Get:4 http://security.debian.org buster/updates/main amd64 Packages [297 kB]
Get:5 http://ftp.us.debian.org/debian buster/non-free Sources [85.7 kB]
Get:6 http://ftp.us.debian.org/debian buster/main Sources [7836 kB]
Get:7 http://ftp.us.debian.org/debian buster/contrib Sources [42.5 kB]
Get:8 http://ftp.us.debian.org/debian buster/main amd64 Packages [7907 kB]
Get:9 http://ftp.us.debian.org/debian buster/main Translation-en [5968 kB]
Get:10 http://ftp.us.debian.org/debian buster/contrib amd64 Packages
[50.1 kB]
Get:11 http://ftp.us.debian.org/debian buster/contrib Translation-en
[44.2 kB]
Get:12 http://ftp.us.debian.org/debian buster/non-free amd64 Packages
[87.7 kB]
Get:13 http://ftp.us.debian.org/debian buster/non-free Translation-en
[88.9 kB]
Fetched 22.7 MB in 52min 3s (7277 B/s)
Reading package lists... Done

Notice that it says "52min 3s", this is something that Dom0 takes about
3 seconds to do to the same servers.  Meaning, it is not a network issue.

What I've tried:
  - I first went through the I/O tweaks from the xen wiki pages. Zero effect

  - Moved all the DomUs off to another server except one (tester).

  - Formatted and reinstalled entire OS from scratch on Dom0.

  - Tried using LVM disk instead of disk images.   Slight improvement,
but still extremely slow.

  - Tried using physical disk, dedicating one drive entirely to the test
DomU, mounting with "phys" in the config.   This was also a slight
improvement, but still very slow disk writes.


"top" on the DomU shows WA very high while trying to get the update. 
Drops to <1 when idle.  All other "top" values are <1.

I thought I solved it by going back to an earlier kernel,
4.19.0-14-amd64, and I tried doing that again and it had zero effect
this time.


Is it possible that there is a kernel flag that is turned off that would
effect VM disk writes?   Reading seems to be normal speed.   Writing to
a network drive from the DomU is very fast as well.


Flag Info from /proc/cpu on Dom0

flags        : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht syscall nx

lm constant_tsc rep_good nopl nonstop_tsc cpuid pni pclmulqdq monitor
est ssse3 cx16 sse4_1 sse4_2

popcnt xsave avx f16c rdrand hypervisor lahf_lm cpuid_fault ssbd ibrs
ibpb stibp fsgsbase erms xsaveopt md_clear




--
People use duct tape to fix everything....God used nails.

http://www.myerscountry.net
--------------35107F94956ADC776EDD657E-- From xen-users-bounces@lists.xenproject.org Fri Jul 30 20:41:13 2021 Return-path: Envelope-to: archives@lists.xen.org Delivery-date: Fri, 30 Jul 2021 20:41:13 +0000 Received: from list by lists.xenproject.org with outflank-mailman.162669.298238 (Exim 4.92) (envelope-from ) id 1m9ZIw-0006dg-55; Fri, 30 Jul 2021 20:40:26 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 162669.298238; Fri, 30 Jul 2021 20:40:26 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m9ZIw-0006dY-0T; Fri, 30 Jul 2021 20:40:26 +0000 Received: by outflank-mailman (input) for mailman id 162669; Fri, 30 Jul 2021 20:40:24 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1m9ZIu-0006dM-Qr for xen-users@lists.xenproject.org; Fri, 30 Jul 2021 20:40:24 +0000 Received: from mout.gmx.net (unknown [212.227.15.19]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c0e3b033-0330-4108-97f6-0a06daf67ba6; Fri, 30 Jul 2021 20:40:22 +0000 (UTC) Received: from [192.168.123.64] ([77.64.146.55]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MSKyI-1mc4XV2Hg8-00SfxR for ; Fri, 30 Jul 2021 22:40:21 +0200 X-BeenThere: xen-users@lists.xenproject.org List-Id: Xen user discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-users-bounces@lists.xenproject.org Precedence: list Sender: "Xen-users" X-Inumbo-ID: c0e3b033-0330-4108-97f6-0a06daf67ba6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1627677621; bh=siOcIXo6N8ymBfTS5EBmgSuk9vc4zfztzupjZUzCkms=; h=X-UI-Sender-Class:Subject:To:References:From:Date:In-Reply-To; b=VFjIxyxd4g9y8ft27aj9AuDNi3g6H98H28Nw07pOu+O55f9iE8j1d3K0BQ5Xxwobv s0iSWMBEUh6a9WDMUTyJIlZVjYqYtC+oDRzNN6xZOyY3donbPSGyW2bEz7myaqGAVA cT9+RmaIfxZ2tb7fgkPRkvAohLPFwB6K2CpjjF4M= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Subject: Re: Howto read MSR thermal under XEN-4.15.0 To: xen-users@lists.xenproject.org References: <1b165ee0-fd39-4dcb-bd5c-5720aed0bef0@gmx.de> <95ce3aca-326a-df20-4a74-60cf03e240bc@xen.org> From: Bobbi Sanchez Message-ID: <7d89a3dd-2636-3f3a-0b9b-78b82acf02e5@gmx.de> Disposition-Notification-To: Bobbi Sanchez Date: Fri, 30 Jul 2021 22:40:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: de-DE X-Provags-ID: V03:K1:Yy7uRYAbSJWRjTrGjzWYIQYLarXtn8kfKO5O48awbZ1pWSKmmtC sYYBRPavTfwFF4Ho5bjGUVwlqBv702SUqmoD7nre/PYWCtTE/hykrYfmSbGW7VOYv9VzTv/ AfA5OrMmcE6bUsV20DZiT+3Z4Qdi93hyw3P3cAxCqgy77QGEdDYWHSVohgF1tBzBrUVDD05 tAx9eYbvfyRUYf0IoMf4w== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:BbzI1vMdF5M=:KCmIUlh9Uda1vOKHq2k0lG DtuuColaYu912oOFG+cE1lCDG3SFfQCHps7T7ITMAt8XekUy1LbZ9p4b8RSvBOO+/nJAfKakb uiHbaH4al9yTHADZG49PeBB3eDSdX46/p5qfJfGrOcOYopVLDDacIJZ0JjsMoGDJPHDtL1OIc s1acAh5FpIl/od4lNhZeZ364I+JbcSeNmMrReFVszD9HIhLU17TUOY/InWwBiN0NqauRTF9jU MROI9fSGTfUc4BW7h9S5shkSkSQJ/aOX2xZXE9TYmlQ/tWYkVHEqWqUHeTRb+nHrrh3pGPcp9 d4wYiIKY4HhHmxmaeh4LhYfq/1G3NUp7+DPWmKc2J8IeOpyqfPczfSA5eioKu/XTja9m2vQeS i1U89Q5+UcnyjeZvdLzeb9wY/Bp9sjTY//QG/Z/u+Z08P4uIEqbmd9gxx2UaPGS29+KWz5fKh R0zvlFpKrlbLeWDWNI12QifJ5jVkgQuZJZiYGF5SfnTnINew0x2eaQ54v5gyGFoYVioIQgxXm Nr2kuy14ZZc9nrVbiayQfDz3wsoDfBnCklkpni9GvOtFtVSr4HZOrdb/5jsHr34suLup+j/IS aa8xcJgfJLDT1qXSSPJBCyIAw4Z+GCKYoiukO7tXR6MrpsCOb+9qvgm7HGaAS1JDCGjGlZFFM LnQl9vVBIckzSOfp8dYJcwc2EKdaS/xrdHEn36un9m7r9ZOcqilgBTqEK4n9xxETFRco1MZqT bs4/mFCZVWKNR7IlPqL7keOyxx9saNszd29/2J2hWmBZ3bieS1UvC1WVPuSkvndEB6Ii0Ibpq 7VtgAa+VRBDv8Z0+E3I5lZSj1m7+HYvpTHgBu6LL4ksSytk3VCb+FQ3z9ct9lg+QkVGXJDc2O k3ct6jsRUcSXz8vDAZxAvirlMeQu0LO8O7Y1V4GcnXbTKgvXPN+dDci5fbqrOZ0xa4u8xBui5 Us5MoGnOoAb9w78UZZ7cnh0CUbbaNaf6mf6I2xe9J/V8lrM7my+qFXnbkTKbpP5rzdGQR5Y2+ jvqggzAErs8VSPP0s06s1h025qYbwe3BNXNSIQTgXtF+MEKlAcL/Oy1MmY+KT7Wyiv7yl3cX/ nJeJIbyjXk6bxbaWhBZOhLXRhrqpT28fKP7 Am 17.06.21 um 13:43 schrieb Andrew Cooper: > On 17/06/2021 12:26, Jan Beulich wrote: >> On 17.06.2021 13:09, Julien Grall wrote: >>> On 16/06/2021 23:39, Bobbi Sanchez wrote: >>>> how can i read the MSR Thermal Values under XEN-4.15.0 ? >>>> >>>> Usually without having XEN-4.15.0 installed i can read the MSR Therma= l >>>> Values like this: >>>> >>>> rdmsr -p 0 -d -f22:16 0x19c >>>> >>>> this works for my Core2Quod Q6600. >>>> >>>> But after having xen-4.15.0 installed and booted, same command shows = now: 0 >>> I believe the access was restricted as part of XSA-351 [1]. I am not >>> sure if there are a safe generic way to access them. I will let Andrew >>> and Jan commenting. >> just as additional context (i.e. on top of Andrew's reply): It wasn't >> that XSA, but our general switch of policy from blacklisting to >> whitelisting MSRs. The XSA was about *_POWER_* and *_PERF_* MSRs. > Well - that XSA was the trigger for finally removing default read access > from all VMs, but yes - this specific issue described here only on Xen > 4.15 and later. > > You can use boot with dom0=3Dmsr-relaxed to regain read access, but will > still be subject to all the reasons I explained before about this not > actually working properly. > > ~Andrew > > Hi=C2=A0Andrew, thanks=C2=A0for=C2=A0hint,=C2=A0but=C2=A0thermal=C2=A0temps=C2=A0are=C2=A0= not=C2=A0shown=C2=A0also=C2=A0after=C2=A0appending=C2=A0=C2=A0that=C2=A0bo= ot=C2=A0paramter=C2=A0to=C2=A0grub=C2=A0"dom0=3Dmsr-relxaed"! =C2=A0Is=C2=A0there=C2=A0any=C2=A0=C2=A0other=C2=A0choice=C2=A0to=C2=A0ac= cess=C2=A0the=C2=A0thermal=C2=A0temps=C2=A0under=C2=A0xen-4.15.0=C2=A0? Best=C2=A0Regards