On Wed, 02/08 19:44, Ed Swierk wrote:
> On Wed, Feb 8, 2017 at 6:52 PM, Fam Zheng <f...@redhat.com> wrote:
> > This means virtio-scsi event vq handler is returning true but actually no
> > progress is made. Can you try the following patch to see if it's because a
> > stalled cache of VQ index?
> >
> > diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
> > index 6365706..7f7ab57 100644
> > --- a/hw/virtio/virtio.c
> > +++ b/hw/virtio/virtio.c
> > @@ -2126,7 +2126,7 @@ static bool virtio_queue_host_notifier_aio_poll(void
> > *opaque)
> > EventNotifier *n = opaque;
> > VirtQueue *vq = container_of(n, VirtQueue, host_notifier);
> >
> > - if (virtio_queue_empty(vq)) {
> > + if (vring_avail_idx(vq) == vq->last_avail_idx) {
> > return false;
> > }
>
> I tried this change but the behavior is the same, unfortunately.
This should fix it:
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01874.html
It would be great if you could help test it.
Fam
