[Qemu-devel] [PATCH] virtio_error: don't invoke status callbacks

[Michael S. Tsirkin]

Backends don't need to know what frontend requested a reset,
and notifying then from virtio_error is messy because
virtio_error itself might be invoked from backend.

Let's just set the status directly.

Reported-by: Ilya Maximets <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---

Ilya this should fix the crash you are seeing, but
the error itself still shows there's something wrong.
So I'd like to defer applying that patch until we
figure out what corrupted guest index.

If you know pls let me know!


 hw/virtio/virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index ad564b0..d6002ee 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2469,7 +2469,7 @@ void GCC_FMT_ATTR(2, 3) virtio_error(VirtIODevice *vdev, 
const char *fmt, ...)
     va_end(ap);
 
     if (virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {
-        virtio_set_status(vdev, vdev->status | VIRTIO_CONFIG_S_NEEDS_RESET);
+        vdev->status = vdev->status | VIRTIO_CONFIG_S_NEEDS_RESET;
         virtio_notify_config(vdev);
     }
 
-- 
MST