Bug 607480

Summary: coroysnc leaks /dev/shm files filling up the shared memory filesystem
Product: Red Hat Enterprise Linux 6 Reporter: Steven Dake <sdake>
Component: corosyncAssignee: Steven Dake <sdake>
Status: CLOSED CURRENTRELEASE QA Contact: Cluster QE <mspqa-list>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 6.0CC: cluster-maint, djansa, michael.hagmann
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: corosync-1.2.3-6.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-11-10 22:07:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
patch to fix shm leak problem and report an error if /dev/shm is full rather then segfault
none
flatiron revision 2969 to resolve problem none

Description Steven Dake 2010-06-24 08:25:51 UTC 
Description of problem:
service corosync restart in a loop

eventually corosync will fail to restart.  Further investigation shows leaking of files in /dev/shm.

Version-Release number of selected component (if applicable):
corosync-1.2.4-4.el6

How reproducible:
100%

Steps to Reproduce:
1. service corosync restart in a loop
2.
3.
  
Actual results:
corosync will eventually segfault during startup and /dev/shm will reach 100% disk usage

Expected results:
corosync should clean up appropriately

Additional info:
Comment 1 Steven Dake 2010-06-24 08:27:33 UTC 
Created attachment 426484 [details]
patch to fix shm leak problem and report an error if /dev/shm is full rather then segfault
Comment 2 RHEL Program Management 2010-06-24 08:32:52 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 3 Steven Dake 2010-06-27 20:55:34 UTC 
patch in comment #1 is not entirely correct and needs more work.
Comment 4 Steven Dake 2010-06-28 22:57:06 UTC 
Created attachment 427523 [details]
flatiron revision 2969 to resolve problem
Comment 6 Dean Jansa 2010-08-27 15:48:22 UTC 
Ran 'service corosync restart' in a loop, 1000 iterations.
/dev/shm did not grow/fill
corosync restarted without failure
Comment 7 releng-rhel@redhat.com 2010-11-10 22:07:17 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.