iotest40 problem

[Li Zhang]

Hi,

When I run the testsuit on our buidling system, it reports a timeout 
sometimes not always as the following.
It couldn't connect qmp socket. Any ideas about this problem?


[ 1989s] --- 
/home/abuild/rpmbuild/BUILD/qemu-6.2.0/tests/qemu-iotests/040.out
[ 1989s] +++ 040.out.bad
[ 1989s] @@ -1,5 +1,55 @@
[ 1989s] -.................................................................
[ 1989s] +....ERROR:qemu.aqmp.qmp_client.qemu-6471:Failed to establish 
connection: asyncio.exceptions.CancelledError
[ 1989s] 
+E..................................ERROR:qemu.aqmp.qmp_client.qemu-6471:Failed 
to establish connection: asyncio.exceptions.CancelledError
[ 1989s] +E.........................
[ 1989s] 
+======================================================================
[ 1989s] +ERROR: test_commit_node (__main__.TestActiveZeroLengthImage)
[ 1989s] 
+----------------------------------------------------------------------
[ 1989s] +Traceback (most recent call last):
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/tests/qemu-iotests/040", line 
94, in setUp
[ 1989s] +    self.vm.launch()
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/machine/machine.py", 
line 399, in launch
[ 1989s] +    self._launch()
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/machine/machine.py", 
line 434, in _launch
[ 1989s] +    self._post_launch()
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/machine/qtest.py", 
line 147, in _post_launch
[ 1989s] +    super()._post_launch()
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/machine/machine.py", 
line 340, in _post_launch
[ 1989s] +    self._qmp.accept(self._qmp_timer)
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/aqmp/legacy.py", 
line 67, in accept
[ 1989s] +    self._sync(
[ 1989s] +  File 
"/home/abuild/rpmbuild/BUILD/qemu-6.2.0/python/qemu/aqmp/legacy.py", 
line 41, in _sync
[ 1989s] +    return self._aloop.run_until_complete(
[ 1989s] +  File "/usr/lib64/python3.8/asyncio/base_events.py", line 
616, in run_until_complete
[ 1989s] +    return future.result()
[ 1989s] +  File "/usr/lib64/python3.8/asyncio/tasks.py", line 501, in 
wait_for
[ 1989s] +    raise exceptions.TimeoutError()
[ 1989s] +asyncio.exceptions.TimeoutError