[PATCH v1 0/2] Virtio: fix some vq allocation issues

Wei Wang
Thu, 03 Jan 2019 06:18:22 -0000

On 12/28/2018 03:57 PM, Christian Borntraeger wrote:
>
> On 28.12.2018 03:26, Wei Wang wrote:
>> Some vqs don't need to be allocated when the related feature bits
are
>> disabled. Callers notice the vq allocation layer by setting the related
>> names[i] to be NULL.
>>
>> This patch series fixes the find_vqs implementations to handle this
case.
> So the random crashes during boot are gone.
> What still does not work is actually using the balloon.
>
> So in the qemu monitor using lets say "balloon 1000"  will hang
the guest.
> Seems to be a deadlock in the virtio-ccw code.  We seem to call the
> config code in the interrupt handler.

Please try with applying both this series and the "virtio-balloon: tweak
config_changed"
series that I just sent.
This series fixes the ccw booting issue and that series tries to fix the
ccw deadlock issue.

Best,
Wei