On 2018-03-05 16:59, Stefan Hajnoczi wrote: > There is a race between the test's 'query-migrate' QMP command after the > QMP 'STOP' event and completing the migration: > > The test case invokes 'query-migrate' upon receiving 'STOP'. At this > point the migration thread may still be in the process of completing. > Therefore 'query-migrate' can return 'status': 'active' for a brief > window of time instead of 'status': 'completed'. This results in > qemu-iotests 203 hanging. > > Solve the race by enabling the 'events' migration capability, which > causes QEMU to emit migration-specific QMP events that do not suffer > from this race condition. Wait for the QMP 'MIGRATION' event with > 'status': 'completed'. > > Reported-by: Max Reitz <mre...@redhat.com> > Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com> > --- > tests/qemu-iotests/203 | 15 +++++++++++---- > tests/qemu-iotests/203.out | 5 +++++ > 2 files changed, 16 insertions(+), 4 deletions(-)
So much for "the ppoll() dungeon"... Thanks! Reviewed-by: Max Reitz <mre...@redhat.com>
signature.asc
Description: OpenPGP digital signature
