F19: System hangs when rebooting guests in qemu/kvm

Mateusz Marzantowicz mmarzantowicz at osdf.com.pl
Thu Jul 4 08:42:55 UTC 2013

On 04.07.2013 10:32, poma wrote:
> On 04.07.2013 10:12, Mateusz Marzantowicz wrote:
>> Hello,
>> I'm experiencing system hangs and kernel oops on Fedora 19. Everything
>> happens when I restart guest system inside qemu/kvm container. My system
>> becomes unstable on kernel 3.9.5 and totally hangs on 3.9.6 and later.
>> It happens just after guest OS (latest stable Debian Linux) shows grub
>> boot menu. I sometimes see text console with kernel oops message on my
>> bare hardware but never had time or will to write it down on paper.
>> I can't provide more details right now, because nothing gets written to
>> system logs (serious oops?). Besides this issues all other pieces of my
>> box are working perfectly.
>> I need some instrumentation and guidance finding what is exactly going
>> wrong.
> Guest - virtio_net?
> /etc/libvirt/qemu/<domain>.xml
>>     <interface type='network'>
>>       <model type='virtio'/>
>>     </interface>
<interface type='bridge'>
    <model type='virtio'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x03'

Mateusz Marzantowicz

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