The QEMUMachine VM has a monitor setup on which an QMP
connection is always attempted on _post_launch() (executed
by launch()). In case the QEMU process immediatly exits
then the qmp.accept() (used to establish the connection) stalls
until it reaches timeout and consequently an exception raises.
That behavior is undesirable when, for instance, it needs to
gather information from the QEMU binary ($ qemu -cpu list) or a
test which launches the VM expecting its failure.
This patch adds the set_qmp_monitor() method to QEMUMachine that
allows turn off the creation of the monitor machinery on VM launch.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191211185536.16962-2-wainersm@redhat.com>
[Cleber: trivial indentation fix]
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Currently, the console socket on QEMUMachine is closed after the QMP
command to gracefully exit QEMU is executed. Because of a possible
deadlock (QEMU waiting for the socket to become writable) let's close
the console socket earlier.
Reference: <20190607034214.GB22416@habkost.net>
Reference: https://bugs.launchpad.net/qemu/+bug/1829779
From: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20190911023558.4880-2-crosa@redhat.com>
iotests.py itself does not store socket files, but machine.py and
qtest.py do. iotests.py needs to pass the respective path to them, and
they need to adhere to it.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20191017133155.5327-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
If a test has issued a quit command already (which may be useful to do
explicitly because the test wants to show its effects),
QEMUMachine.shutdown() should not do so again. Otherwise, the VM may
well return an ECONNRESET which will lead QEMUMachine.shutdown() to
killing it, which then turns into a "qemu received signal 9" line.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Since we're out in a new module, do a quick cursory pass of some of the
more obvious style issues.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20190627212816.27298-3-jsnow@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
It's not obvious that something named __init__.py actually houses
important code that isn't relevant to python packaging glue. Move the
QEMUMachine and related error classes out into their own module.
Adjust users to the new import location.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20190627212816.27298-2-jsnow@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Wainer dos Santos Moschetta