Re: [Bug 60620] guest loses frequently (multiple times per day!) connectivity to network device

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On Fri, Aug 02, 2013 at 11:28:45AM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=60620
> 
> --- Comment #9 from Folkert van Heusden <folkert@xxxxxxxxxxxxxx> ---
> Good news!
> If I
> 
> - bring down all interfaces in the guest (ifdown eth0...)
> - rmmod virtio_net
> - modprobe virtio_net
> - bring up the interfaces again
> + it all works again!
> 
> So hopefully this helps the bug hunt?

Hi Folkert,
Please post the QEMU command-line on the host (ps aux | grep qemu) and
the output of lsmod | grep vhost_net.

Since reinitializing the guest driver "fixes" the issue, we now need to
find out whether the guest or the host side got stuck.

I think I asked before, but please also post any relevant lines from
dmesg on the host and from the guest.  Examples would include networking
error messages, kernel backtraces, or out-of-memory errors.

Thanks,
Stefan
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