Re: [Xen-users] XEN 4.1.2+Centos 6.2+Kernel 3.X

[Teck Choon Giam <giamteckchoon@xxxxxxxxx>]

On Tue, Feb 7, 2012 at 4:20 AM, David Gonzalez <dgonzalezh@xxxxxxxxx> wrote:
> UPDATE:
>
> Altho the ML115 server froze and by now I can't say what wen wrong until
> tomorrow, I tried one of my other XEN servers running 4.1.2 (same as the
> ofrozen one) tis one booted correctly and now I see.
>
> # xl info
> host                   : xenmaster
> release                : 3.2.4-0.choon.centos6.x86_64
> version                : #1 SMP Sat Feb 4 10:49:21 SGT 2012
> machine                : x86_64
> nr_cpus                : 8
> nr_nodes               : 2
> cores_per_socket       : 4
> threads_per_core       : 1
> cpu_mhz                : 2311
> hw_caps                :
> 178bf3ff:efd3fbff:00000000:00001310:00802001:00000000:000007ff:00000000
> virt_caps              : hvm
> total_memory           : 8191
> free_memory            : 6695
>
> free_cpus              : 0
> xen_major              : 4
> xen_minor              : 1
> xen_extra              : .2
>
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_scheduler          : credit
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> xen_commandline        : dom0_max_vcpus=1 dom0_vcpus_pin loglvl=all
> guest_loglvl=all conswitch=g com1=115200,8n1 console=vga,com1 dom0_mem=512M
>
> cc_compiler            : gcc version 4.4.5 20110214 (Red Hat 4.4.5-6) (GCC)
> cc_compile_by          : mockbuild
> cc_compile_domain      :
> cc_compile_date        : Wed Dec 14 11:41:56 EST 2011
> xend_config_format     : 4
>
> As you see it's running 3.2.4-0 from your repo and it's running aok for the
> last hours, we'll see
>
> Now ML115 is also running smooth 3.2.4 choon kernel.
>
> check it out and also xen 4.1.3 from your choonerized rpms.
>
> [root@xaero ~]# xl info
> host                   : xaero.dghvoip.com
> release                : 3.2.4-0.choon.centos6.x86_64
> version                : #1 SMP Sat Feb 4 10:49:21 SGT 2012
> machine                : x86_64
> nr_cpus                : 2
> nr_nodes               : 1
> cores_per_socket       : 2
> threads_per_core       : 1
> cpu_mhz                : 1802
> hw_caps                :
> 178bf3ff:ebd3fbff:00000000:00000010:00002001:00000000:0000001f:00000000
> virt_caps              : hvm
> total_memory           : 3583
> free_memory            : 2904
>
> free_cpus              : 0
> xen_major              : 4
> xen_minor              : 1
> xen_extra              : .3-rc1-pre
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_scheduler          : credit
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : unavailable
> xen_commandline        : loglvl=all guest_loglvl=all dom0_max_vcpus=1
> dom0_vcpus_pin conswitch=g dom0_mem=384M console=vga
> cc_compiler            : gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
> cc_compile_by          : mockbuild
> cc_compile_domain      : choon.net
> cc_compile_date        : Fri Feb  3 05:01:34 SGT 2012
> xend_config_format     : 4
>
> We'll see how this behaves in the next few days.
>
> Now, as I'm trying to get used to xl stuff, I've also got symlinks to some
> of my DomUs located at /etc/xen/auto to auto-start them at boottime but they
> just don't start, so I'm in doubt if this script is completely tested or if
> I'm better off using /etc/rc.local and start them from there.

Output of the following:
# chkconfig --list|grep xen

You should get something like:

choon-xen-iptables      0:off   1:off   2:on    3:on    4:on    5:on    6:off
xencommons      0:off   1:off   2:on    3:on    4:on    5:on    6:off
xend            0:off   1:off   2:on    3:on    4:on    5:on    6:off
xendomains      0:off   1:off   2:on    3:on    4:on    5:on    6:off

All are needed whether you run xl or xm is up to you but I always keep
them enabled especially for xendomains if you want it to auto start.
Whether for choon-xen-iptables is used when you enable antispoof
feature.  See more information in /etc/sysconfig/choon-xen-iptables
file.

# cat /etc/sysconfig/choon-xen-iptables
# ENABLEANTISPOOF=yes|no (default no)
ENABLEANTISPOOF=yes
# DISABLETXCHECKSUM=yes|no (default no)
DISABLETXCHECKSUM=yes

Whereby for /etc/sysconfig/choon-xen you can see the comments in that
file to find out more.  Yes, I patched to enable antispoof support for
tap devices.  Currently only support vif -> tap naming.

There are few things that xl not support if run in hvm... such as
localtime etc... can't remember off my head though :p

Feel free to test and feedback would be greatly appreciated ;)

>
> I cna comfirm that both of my srevers are running your rpms and they seem to
> be in good shape for now.

Err... good to hear that... but hor... choon-kernel-3.2.5-0 released :p

>
> Thanks and please keep in touch.

Sure... I will keep you update if you want off this list about the
updates related to xen if you are interesed :)

Thanks.

Kindest regards,
Giam Teck Choon

>
>
> --
> David Gonzalez H.
> Bogota: +(57-1)289-1168
> Medellin: +(57-1)247-0985
> Cel: +(57)315-838-8326
> DGHVoIP - OPEN SOURCE TELEPHONY SOLUTIONS
> http://www.dghvoip.com/
> Proud Linux User #294661

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