Redirecting qemu's stderr to stdout makes working with the stderr output
difficult due to the other file descriptor magic performed in
_launch_qemu ("ambiguous redirect").
Add an option which specifies whether stderr should be redirected to
stdout or not (allowing for other modes to be added in the future).
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Commit 934659c switched the iotests to run qemu and qemu-nbd from a bash
subshell, in order to catch segfaults. Unfortunately, this means the
process PID cannot be captured via '$!'. We stopped killing qemu and
qemu-nbd processes, leaving a lot of orphaned, running qemu processes
after executing iotests.
Since the process is using exec in the subshell, the PID is the
same as the subshell PID.
Track these PIDs for cleanup using pidfiles in the $TEST_DIR. Only
track the qemu PID, however, if requested - not all usage requires
killing the process.
Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Message-id: 9e4f958b3895b7259b98d845bb46f000ba362869.1446232490.git.jcody@redhat.com
[mreitz@redhat.com: Replaced '! -z "..."' by '-n "..."']
Signed-off-by: Max Reitz <mreitz@redhat.com>
This patch fixes an io test suite issue that was introduced with the
commit c88930a686 'qemu-char: Permit only
a single "stdio" character device'. The option supresses the creation of
default devices such as the floopy and cdrom. Output files for test case
067, 071, 081 and 087 need to be updated to accommodate this change.
Use virtio-blk instead of virtio-blk-pci as the device driver for test
case 067. For virtio-blk-pci is the same with virtio-blk as device
driver but other platform such as s390 may not recognize the virtio-blk-pci.
The default devices differ across machines. As the qemu output often
contains these devices (or events for them, like opening a CD tray on
reset), the reference output currently is rather machine-specific.
All existing qemu tests explicitly configure the devices they're working
with, so just pass -nodefaults to qemu by default to disable the default
devices. Update the reference outputs accordingly.
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Signed-off-by: Xiao Guang Chen <chenxg@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The qemu process does not always need to be killed, just waiting for it
can be fine, too. This introduces a way to do so.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423256778-3340-3-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The original intention was to pipe stderr of qemu into $fifo_out.
However, the redirections were specified in the wrong order for this.
This patch fixes it.
Now qemu's output on stderr can be retrieved with _send_qemu_cmd, which
applies several useful filters on the output that were missing before.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1416497234-29880-9-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This creates some common functions for bash language qemu-iotests
to control, and communicate with, a running QEMU process.
4 functions are introduced:
1. _launch_qemu()
This launches the QEMU process(es), and sets up the file
descriptors and fifos for communication. You can choose to
launch each QEMU process listening for either QMP or HMP
monitor. You can call this function multiple times, and
save the handle returned from each. The returned handle is
in $QEMU_HANDLE. You must copy this value.
Commands 2 and 3 use the handle received from _launch_qemu(), to talk
to the appropriate process.
2. _send_qemu_cmd()
Sends a command string, specified by $2, to QEMU. If $3 is
non-NULL, _send_qemu_cmd() will wait to receive $3 as a
required result string from QEMU. Failure to receive $3 will
cause the test to fail. The command can optionally be retried
$qemu_cmd_repeat number of times. Set $qemu_error_no_exit
to not force the test the fail on exit; in this case,
$QEMU_STATUS[$1] will be set to -1 on failure.
3. _timed_wait_for()
Waits for a response, for up to a default of 10 seconds. If
$2 is not seen in that time (anywhere in the response), then
the test fails. Primarily used by _send_qemu_cmd, but could
be useful standalone, as well. To prevent automatic exit
(and therefore test failure), set $qemu_error_no_exit to a
non-NULL value. If $silent is a non-NULL value, then output
to stdout will be suppressed.
4. _cleanup_qemu()
Kills the running QEMU processes, and removes the fifos.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
