On RHEL, the live migration crash was also noticed [1]. Michael S. Tsirkin has identified that backporting those two patches from 2.7 fixed the issue:
virtio: decrement vq->inuse in virtqueue_discard() virtio: recalculate vq->inuse after migration
This confirms the findings of Michael Roth in comment 20, so it would be nice to have them SRU'ed.
1: https://bugzilla.redhat.com/show_bug.cgi?id=1372763
On RHEL, the live migration crash was also noticed [1]. Michael S. Tsirkin has identified that backporting those two patches from 2.7 fixed the issue:
virtio: decrement vq->inuse in virtqueue_discard()
virtio: recalculate vq->inuse after migration
This confirms the findings of Michael Roth in comment 20, so it would be nice to have them SRU'ed.
1: https:/ /bugzilla. redhat. com/show_ bug.cgi? id=1372763