Hi Brian,
this fix did not solve the bug for me. I still get the following error
message every 2 minutes:
Jan 7 08:28:25 kjp02 stonith-ng[1868]: error: crm_abort:
crm_glib_handler: Forked child 4647 to record non-fatal assert at
logging.c:63 : Source ID 28 was not found when attempting to remove it
Since it is an production system I can not play with crm standby/online,
but I suspect that it will crash again as it did before, because this
error was the cause for all previous crashes.
I use 14.04.1 amd64, 3.13.0-43-generic
# apt-cache policy pacemaker
pacemaker:
Installiert: 1.1.10+git20130802-1ubuntu2.2
Installationskandidat: 1.1.10+git20130802-1ubuntu2.2
Versionstabelle:
*** 1.1.10+git20130802-1ubuntu2.2 0
400 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64
Packages
100 /var/lib/dpkg/status
1.1.10+git20130802-1ubuntu2.1 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
1.1.10+git20130802-1ubuntu2 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
Peter
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You received this bug notification because you are a member of Ubuntu
High Availability Team, which is subscribed to pacemaker in Ubuntu.
https://bugs.launchpad.net/bugs/1368737
Title:
Pacemaker can seg fault on crm node online/standby
Status in pacemaker package in Ubuntu:
Fix Released
Status in pacemaker source package in Trusty:
Fix Committed
Status in pacemaker source package in Utopic:
Fix Committed
Status in pacemaker source package in Vivid:
Fix Released
Bug description:
[IMPACT]
- Pacemaker seg fault on repeated crm node online/standy because:
- Newer glib versions uses hash_table to find GSources
- Glib can try to assert source being removed multiple times
[TEST CASE]
- Using same configuration as attached cib.xml :
#!/bin/bash
while true; do
crm node standby clustertrusty01
sleep 7
crm node online clustertrusty01
sleep 7
crm node standby clustertrusty02
sleep 7
crm node online clustertrusty02
sleep 7
crm node standby clustertrusty03
sleep 7
crm node online clustertrusty03
sleep 7
done
[REGRESSION POTENTIAL]
- Based on upstream commit 568e41d
- Test case ran for more than 7 hours with no problems
[OTHER INFO]
It was brought to my attention the following situation:
"""
[Issue]
lrmd process crashed when repeating "crm node standby" and "crm node
online"
----------------
# grep pacemakerd ha-log.k1pm101 | grep core
Aug 27 17:47:06 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 49275 (lrmd) dumped core
Aug 27 17:47:06 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=49275, core=1)
Aug 27 18:27:14 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 1471 (lrmd) dumped core
Aug 27 18:27:14 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=1471, core=1)
Aug 27 18:56:41 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 35771 (lrmd) dumped core
Aug 27 18:56:41 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=35771, core=1)
Aug 27 19:44:09 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 60709 (lrmd) dumped core
Aug 27 19:44:09 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=60709, core=1)
Aug 27 20:00:53 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 35838 (lrmd) dumped core
Aug 27 20:00:53 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=35838, core=1)
Aug 27 21:33:52 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 49249 (lrmd) dumped core
Aug 27 21:33:52 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=49249, core=1)
Aug 27 22:01:16 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 65358 (lrmd) dumped core
Aug 27 22:01:16 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=65358, core=1)
Aug 27 22:28:02 k1pm101 pacemakerd[49271]: error: child_waitpid: Managed
process 22693 (lrmd) dumped core
Aug 27 22:28:02 k1pm101 pacemakerd[49271]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=22693, core=1)
----------------
----------------
# grep pacemakerd ha-log.k1pm102 | grep core
Aug 27 15:32:48 k1pm102 pacemakerd[5808]: error: child_waitpid: Managed
process 5812 (lrmd) dumped core
Aug 27 15:32:48 k1pm102 pacemakerd[5808]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=5812, core=1)
Aug 27 15:52:52 k1pm102 pacemakerd[5808]: error: child_waitpid: Managed
process 35781 (lrmd) dumped core
Aug 27 15:52:52 k1pm102 pacemakerd[5808]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=35781, core=1)
Aug 27 16:02:54 k1pm102 pacemakerd[5808]: error: child_waitpid: Managed
process 51984 (lrmd) dumped core
Aug 27 16:02:54 k1pm102 pacemakerd[5808]: notice: pcmk_child_exit: Child
process lrmd terminated with signal 11 (pid=51984, core=1)
"""
Analyzing core file with dbgsyms I could see that:
#0 0x00007f7184a45983 in services_action_sync (op=0x7f7185b605d0) at
services.c:434
434 crm_trace(" > stdout: %s", op->stdout_data);
Is responsible for the core.
I've checked upstream code and there might be 2 important commits that
could be cherry-picked to fix this behavior:
commit f2a637cc553cb7aec59bdcf05c5e1d077173419f
Author: Andrew Beekhof <[email protected]>
Date: Fri Sep 20 12:20:36 2013 +1000
Fix: services: Prevent use-of-NULL when executing service actions
commit 11473a5a8c88eb17d5e8d6cd1d99dc497e817aac
Author: Gao,Yan <[email protected]>
Date: Sun Sep 29 12:40:18 2013 +0800
Fix: services: Fix the executing of synchronous actions
The core can be caused by things such as this missing code:
if (op == NULL) {
crm_trace("No operation to execute");
return FALSE;
on the beginning of "services_action_sync(svc_action_t * op)"
function.
And improved by commit #11473a5.
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