Calling vring_invalidate must be done with a (write) lock taken on the
virtqueue.
Fixes: 72d002b3ebda ("vhost: fix vring address handling during live migration")
Cc: [email protected]
Signed-off-by: David Marchand <[email protected]>
Acked-by: Eelco Chaudron <[email protected]>
---
Changes since v1:
- moved fix out of patch 3,
---
lib/vhost/vhost_user.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/vhost/vhost_user.c b/lib/vhost/vhost_user.c
index e36312181a..a323ce5fbf 100644
--- a/lib/vhost/vhost_user.c
+++ b/lib/vhost/vhost_user.c
@@ -2198,7 +2198,9 @@ vhost_user_get_vring_base(struct virtio_net **pdev,
vhost_user_iotlb_flush_all(dev);
+ rte_rwlock_write_lock(&vq->access_lock);
vring_invalidate(dev, vq);
+ rte_rwlock_write_unlock(&vq->access_lock);
return RTE_VHOST_MSG_RESULT_REPLY;
}
--
2.42.0
