Peter Xu <pet...@redhat.com> wrote: > In 8.0 devel window we reworked preempt channel creation, so that there'll > be no race condition when the migration channel and preempt channel got > established in the wrong order in commit 5655aab079. > > However no one noticed that the change will also be not compatible with > older qemus, majorly 7.1/7.2 versions where preempt mode started to be > supported. > > Leverage the same pre-7.2 flag introduced in the previous patch to recover > the behavior hopefully before 8.0 releases, so we don't break migration > when we migrate from 8.0 to older qemu binaries. > > Fixes: 5655aab079 ("migration: Postpone postcopy preempt channel to be after > main") > Signed-off-by: Peter Xu <pet...@redhat.com>
Reviewed-by: Juan Quintela <quint...@redhat.com> queued.