I just got this iotest 260 failure processing an unrelated merge on my x86-64 Ubuntu box. I assume it's an intermittent (have just kicked off a retry) but post the backtrace in case it's of interest:
TEST iotest-qcow2: 260 [fail] QEMU -- "/home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/../../x86_64-softmmu/qemu-system-x86_64" -nodefaults -display none -machine accel=qtest QEMU_IMG -- "/home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/../../qemu-img" QEMU_IO -- "/home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/../../qemu-io" --cache writeback -f qcow2 QEMU_NBD -- "/home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/../../qemu-nbd" IMGFMT -- qcow2 (compat=1.1) IMGPROTO -- file PLATFORM -- Linux/x86_64 e104462 4.15.0-60-generic TEST_DIR -- /home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/scratch SOCKET_SCM_HELPER -- /home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/socket_scm_helper --- /home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/260.out 2019-10-15 19:38:40.208504628 +0100 +++ /home/petmay01/linaro/qemu-for-merges/build/alldbg/tests/qemu-iotests/260.out.bad 2019-10-15 20:01:22.658839136 +0100 @@ -1,52 +1,19 @@ Testcase non-persistent without restart -{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": false}} -{"return": {}} -initial bitmap: name=bitmap0 dirty-clusters=1 -{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}} -{"return": {}} -check that no bitmaps are in snapshot: not found -{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -{"execute": "block-job-complete", "arguments": {"device": "drive0"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -check bitmap after commit: name=bitmap0 dirty-clusters=2 -check updated bitmap: name=bitmap0 dirty-clusters=3 - -Testcase persistent without restart - -{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": true}} -{"return": {}} -initial bitmap: name=bitmap0 dirty-clusters=1 -{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}} -{"return": {}} -check that no bitmaps are in snapshot: not found -{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -{"execute": "block-job-complete", "arguments": {"device": "drive0"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -check bitmap after commit: name=bitmap0 dirty-clusters=2 -check updated bitmap: name=bitmap0 dirty-clusters=3 - -Testcase persistent with restart - -{"execute": "block-dirty-bitmap-add", "arguments": {"name": "bitmap0", "node": "drive0", "persistent": true}} -{"return": {}} -initial bitmap: name=bitmap0 dirty-clusters=1 -{"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapshot-file": "TEST_DIR/PID-top"}} -{"return": {}} -check that no bitmaps are in snapshot: not found -... Restart ... -{"execute": "block-commit", "arguments": {"device": "drive0", "top": "TEST_DIR/PID-top"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_READY", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -{"execute": "block-job-complete", "arguments": {"device": "drive0"}} -{"return": {}} -{"data": {"device": "drive0", "len": 65536, "offset": 65536, "speed": 0, "type": "commit"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} -check bitmap after commit: name=bitmap0 dirty-clusters=2 -check updated bitmap: name=bitmap0 dirty-clusters=3 +Traceback (most recent call last): + File "260", line 87, in <module> + test(persistent=False, restart=False) + File "260", line 48, in test + vm.launch() + File "/home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/../../python/qemu/machine.py", line 294, in launch + self._launch() + File "/home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/../../python/qemu/machine.py", line 311, in _launch + self._pre_launch() + File "/home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/../../python/qemu/qtest.py", line 103, in _pre_launch + super(QEMUQtestMachine, self)._pre_launch() + File "/home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/../../python/qemu/machine.py", line 262, in _pre_launch + server=True) + File "/home/petmay01/linaro/qemu-for-merges/tests/qemu-iotests/../../python/qemu/qmp.py", line 60, in __init__ + self.__sock.bind(self.__address) +OSError: AF_UNIX path too long TEST iotest-qcow2: 265 TEST iotest-qcow2: 267 TEST iotest-qcow2: 268 Not run: 220 Failures: 260 Failed 1 of 109 iotests thanks -- PMM