Re: [PATCH v2 0/2] Postcopy migration and vhost-user errors

[Prasad Pandit]

Hello Michael,

On Tue, 10 Sept 2024 at 22:40, Michael S. Tsirkin <mst@redhat.com> wrote:
> So are we going to see a version with BQL?

===
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index cdf9af4a4b..96ac0ed93b 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -2079,6 +2079,7 @@ static int vhost_user_postcopy_end(struct
vhost_dev *dev, Error **errp)

     trace_vhost_user_postcopy_end_entry();

+    BQL_LOCK_GUARD();
     ret = vhost_user_write(dev, &msg, NULL, 0);
     if (ret < 0) {
         error_setg(errp, "Failed to send postcopy_end to vhost");
-- 
2.43.5
===

* We ran the test with the above BQL patch, but it did not help to fix
race errors. I'm continuing to debug it, will update here soon.

Thank you.
---
  - Prasad