Re: [Xen-users] domU with two eth but only one is active

[SZABO Zsolt <szazs@xxxxxxxxx>]

On Sat, 18 Jul 2015, SZABO Zsolt wrote:

> > Did you upgrade the guest too or just dom0?
> I have also upgraded the guest to jessie...
Maybe I forgot something about the "history":
0. I had xen-4.1 on wheezy (dom0), and a squeeze domU
1. I upgraded domU to wheezy and later to jessie
   (the domU is the server of an LTSP clients on the local LTSP network
   i.e. eth1, and it worked; from outside I can access the domU through
   eth0 and it worked, too; however, the kernel was 3.2)
2. then I decided to upgrade the wheezy dom0 to jessie too
   and then upload the 3.16 kernel modules to the domU(s)
   (and modified the xl.pvexample script accordingly):

name = "linserver"
kernel = "/boot/vmlinuz-3.16.0-4-amd64"
ramdisk = "/boot/initrd.img-3.16.0-4-amd64"
extra = "root=/dev/xvda2 ro"

memory = 20480
vcpus = 16

vif  = [ 'mac=00:40:f6:54:79:0f,bridge=xenbr0',
         'mac=00:16:3e:00:02:01,bridge=xenbr1' ]

disk = [ '/dev/xcp/linsrv_7,raw,xvda2,rw',
         '/dev/swp/linsrv_swap,raw,xvda1,rw',
         '/dev/xcp/linsrv_tmp,raw,xvda3,rw',
         '/dev/xcp/linsrv_opt,raw,xvdb1,rw',
         '/dev/xcp/linsrv_home,raw,xvdb2,rw',
         ]
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'


The mentioned other wheezy domU (acting as license server, see below)
runs also with kernel 3.16 (from the /boot of dom0)

> Ok, I have another linux domU but with wheezy. Originally, only eth0 was 
> configured, but now I have also tried to add eth1 similarly as to
> the jessie domU and it works...
>
> The dmesg of this domU is shorter:
> # dmesg |grep net
> [    0.004000] Initializing cgroup subsys net_cls
> [    0.004000] Initializing cgroup subsys net_prio
> [    0.134434] microcode: Microcode Update Driver: v2.00 
> <tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba
> [    0.134838] audit: initializing netlink subsys (disabled)
> [    1.340978] xen_netfront: Initialising Xen virtual ethernet driver
>
> Maybe the jessie upgrade missed some feature of the later upgraded dom0?
> Or it is about some kind of other conflict...?
--
Zs

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