Re: [Qemu-devel] Headsup: windows virtio networking does not work on current git

[Michael Tokarev]

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:

commit fed699f9ca6ae8a0fb62803334cf46fa64d1eb91
Author: Jason Wang <address@hidden>
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 <address@hidden>
    Signed-off-by: Anthony Liguori <address@hidden>

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