On Mon, Oct 02, 2017 at 04:30:58PM +0000, Anthony PERARD wrote: > When doing a live migration of a Xen guest with libxl, the images for > block devices are locked by the original QEMU process, and this prevent > the QEMU at the destination to take the lock and the migration fail. > > From QEMU point of view, once the RAM of a domain is migrated, there is > two QMP commands, "stop" then "xen-save-devices-state", at which point a > new QEMU is spawned at the destination. > > Release locks in "xen-save-devices-state" so the destination can takes > them.
What happens if the migration fails on the destination? Will QEMU pick the lock again when resuming on the source in this case? Thanks, Roger.
