On Thu, Dec 26, 2019 at 06:36:48AM +0200, Yuri Benditovich wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1708480
> Fix leak of region reference that prevents complete
> device deletion on hot unplug.
>
> Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>

I rebased this on top of my tree.

Got this:


commit f3dee6a062c1f4445768296ee39070bab9863372
Author: Yuri Benditovich <yuri.benditovich@daynix.com>
Date:   Thu Dec 26 06:36:48 2019 +0200

    virtio: reset region cache when on queue deletion

    https://bugzilla.redhat.com/show_bug.cgi?id=1708480
    Fix leak of region reference that prevents complete
    device deletion on hot unplug.

    Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
    Message-Id: <20191226043649.14481-2-yuri.benditovich@daynix.com>

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 95d8ff8508..7b861e0ca0 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2344,6 +2344,7 @@ void virtio_delete_queue(VirtQueue *vq)
     vq->handle_aio_output = NULL;
     g_free(vq->used_elems);
     vq->used_elems = NULL;
+    virtio_virtqueue_reset_region_cache(vq);
 }

 void virtio_del_queue(VirtIODevice *vdev, int n)

Can you confirm pls?