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iotests: Test commit with iothreads and ongoing I/O

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This tests exercises graph locking, draining, and graph modifications
with AioContext switches a lot. Amongst others, it serves as a
regression test for bdrv_graph_wrlock() deadlocking because it is called
with a locked AioContext and for AioContext handling in the NBD server.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230517152834.277483-4-kwolf@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-05-17 17:28:34 +02:00
parent 7c1f51bf38
commit 95fdd8db61
3 changed files with 58 additions and 6 deletions
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4
tests/qemu-iotests/iotests.py
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@ -462,6 +462,10 @@ class QemuStorageDaemon:
assert self._qmp is not None
return self._qmp.cmd(cmd, args)
def get_qmp(self) -> QEMUMonitorProtocol:
assert self._qmp is not None
return self._qmp
def stop(self, kill_signal=15):
self._p.send_signal(kill_signal)
self._p.wait()