[Xen-users] vif after domU reboot stays down

[Boris Sagadin <boris@xxxxxxxxx>]

Sometimes, after domU user reboots it, vif interface for that
domU is then not brought back. I must then manually bring back the
interface with ifconfig viftest0 up. This happens only sometimes.
Everything looks fine in domU itself. After I bring up the vif
manually, networking starts working fine for that domU.

Any ideas? Where can I start debugging this?

Centos 5.2

host                   : xy.net
release                : 2.6.18-92.1.13.el5xen
version                : #1 SMP Wed Sep 24 20:01:15 EDT 2008
machine                : x86_64
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 2500
hw_caps                : 
bfebfbff:20100800:00000000:00000140:000ce3bd:00000000:00000001
total_memory           : 16382
free_memory            : 6421
node_to_cpu            : node0:0-7
xen_major              : 3
xen_minor              : 2
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
cc_compiler            : gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)
cc_compile_by          : root
cc_compile_domain      : xy.net
cc_compile_date        : Thu Oct 23 17:17:23 CEST 2008
xend_config_format     : 4

kernel     = '/boot/xen-vmlinuz'
ramdisk    = '/boot/xen-initrd.img'
memory     = 1024
name       = 'zzz.vm'
vif        = ['ip=w.x.y.z, vifname=viftest0,  mac=aa:00:d5:0b:94:01 ']
vnc        = 0
vcpus = 1
vncviewer  = 0
serial     = 'pty'
disk       = ['phy:/dev/VGSAS/test_rootimg,sda1,w',
'phy:/dev/VGSAS/test_vmswap,sda2,w']


Thanks!


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