Dear kvm users/developpers,

I have a problem here where the network interface of a guest hang
2 or 3 times a day. No more packets can be sent out or received, no
error in guest or host logs. I have to stop networking, remove module,
then modprobe again and start the network to get back connection.

My setup:
host: debian etch, kernel 2.6.26 amd64 (etch backports), kvm 73, using
guest: debian sarge, kernel 2.6.26 686 (from etch backports)

I looked at changelogs for userspace kvm tools as well as kernel but didn't
found something relevant to this problem.

Any help would be welcome :)

the guest config:

<domain type='kvm' id='7'>
    <boot dev='hd'/>
  <clock offset='utc'/>
    <disk type='block' device='disk'>
      <source dev='/dev/vg_foo/vm_bar'/>
      <target dev='hda' bus='ide'/>
    <disk type='file' device='cdrom'>
      <source file='/var/lib/kvm/isos/debian-31r0-i386-netinst.iso'/>
      <target dev='hdc' bus='ide'/>
    <interface type='bridge'>
      <mac address='00:16:3e:02:00:15'/>
      <source bridge='br0'/>
      <target dev='tap5'/>
      <model type='virtio'/>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5905' listen='' keymap='fr'/>

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