| Summary: | multiprocessing.Process.start() fails occasionally | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Rami Vaknin <rvaknin> |
| Component: | python | Assignee: | Dave Malcolm <dmalcolm> |
| Status: | CLOSED ERRATA | QA Contact: | Petr Šplíchal <psplicha> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.1 | CC: | abaron, danken, erez, mgoldboi, ohudlick, psplicha, smizrahi, yeylon |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | python-2.6.6-21.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: |
RHEL6.1, python 2.6
|
|
| Last Closed: | 2011-12-06 10:24:02 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1564.html |
It seems that forking._cleaup() calls Popen.poll() which tests for self.returncode, but then self.pid may be collected by another .poll() and refer to a nonexistent pid. MainThread::ERROR::2011-03-14 18:02:48,144::sp::548::Storage.StoragePool::(reconnect) RECONNECT: Failed: 1cceaba4-2aec-45fe-b4f7-eac35299698d Traceback (most recent call last): File "/usr/share/vdsm/storage/sp.py", line 546, in reconnect return self.connect(hostId, scsiKey, msdUUID, masterVersion) File "/usr/share/vdsm/storage/sp.py", line 434, in connect SDF.refresh() File "/usr/share/vdsm/storage/sdf.py", line 132, in refresh cls.sdc.refresh() File "/usr/share/vdsm/storage/sdc.py", line 114, in refresh self._refreshDomains() File "/usr/share/vdsm/storage/misc.py", line 1028, in helper return sm(*args, kwargs) File "/usr/share/vdsm/storage/misc.py", line 1015, in call self.lastResult = self.func(*args, kwargs) File "/usr/share/vdsm/storage/sdc.py", line 140, in _refreshDomains nfsSD.getFileStorageDomainList() + File "/usr/share/vdsm/storage/nfsSD.py", line 146, in getFileStorageDomainList dl.append(NfsStorageDomain?(os.path.basename(os.path.dirname(f)))) File "/usr/share/vdsm/storage/fileSD.py", line 87, in init if not oop.fileUtils.pathExists(self.metafile): File "/usr/share/vdsm/storage/processPool.py", line 35, in wrapper return self.runExternally(func, *args, kwds) File "/usr/share/vdsm/storage/processPool.py", line 54, in runExternally helper = Helper() File "/usr/share/vdsm/storage/processPool.py", line 102, in init self.proc.start() File "/usr/lib64/python2.6/multiprocessing/process.py", line 99, in start _cleanup() File "/usr/lib64/python2.6/multiprocessing/process.py", line 53, in _cleanup if p._popen.poll() is not None: File "/usr/lib64/python2.6/multiprocessing/forking.py", line 106, in poll pid, sts = os.waitpid(self.pid, flag) OSError: [Errno 10] No child processes