Michael Tokarev <m...@tls.msk.ru> writes:

> 02.02.2013 00:18, Michael Tokarev пишет:
>> Just a heads-up for now, no real diagnostics or anything like that.
>>
>> Current git master (a9c87c586ba9ee290792a98dc126b2861b7f8b03), when booted
>> a windows guest, results in no virtio-net inside.  Neither winXP nor Win7,
>> neither older nor latest (22 Jan 2013) virtio-net drivers works.
>>
>> Windows displays a yellow exclamation mark near the virtio-net device and
>> says it can't start the device (Code 10).
>>
>> Linux guests work fine, quick test anyway.
>>
>> Cc'ing Jason since his virtio-net changes was last.  But I repeat: no
>> diagnostics as of yet, no bisection.
>
> Bisection was easy, since win works fine right before the multiqueue
> virtio-net series.  This is the first bad commit:

Adding Vadim and Michael.

If you use -M pc-1.3 or explicitly disable multiqueue, does the driver work?

Regards,

Anthony Liguori

>
> commit fed699f9ca6ae8a0fb62803334cf46fa64d1eb91
> Author: Jason Wang <jasow...@redhat.com>
> Date:   Wed Jan 30 19:12:39 2013 +0800
>
>      virtio-net: multiqueue support
>
>      This patch implements both userspace and vhost support for multiple queue
>      virtio-net (VIRTIO_NET_F_MQ). This is done by introducing an array of
>      VirtIONetQueue to VirtIONet.
>
>      Signed-off-by: Jason Wang <jasow...@redhat.com>
>      Signed-off-by: Anthony Liguori <aligu...@us.ibm.com>
>
> After this commit, win guest (winXP and win7) shows yellow
> exclamation sign and is unable to start the device with
> code 10.
>
> FWIW.  I'm not sure it is a good idea to make a release with
> such a breakage, even rc0.
>
> Thanks,
>
> /mjt


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