Bug 68895

Summary: mm not compiled to use SysV shared memory or semaphores
Product: [Retired] Red Hat Public Beta Reporter: Jonathan Kamens <jik>
Component: mmAssignee: Nalin Dahyabhai <nalin>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: limboCC: jn
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2002-07-15 19:58:23 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:
Bug Depends On:    
Bug Blocks: 68896    

Description Jonathan Kamens 2002-07-15 19:55:14 UTC
It appears that mm-1.1.3-7 doesn't use SysV shared memory or semaphores.  I
think it should be configured with --with-shm=IPCSHM --with-sem=IPCSEM.

Comment 1 Nalin Dahyabhai 2002-07-24 19:05:52 UTC
1.1.3-7 uses IPCSHM shared memory and fcntl semaphores.  Forcing IPCSEM in
1.1.3-8 and later.

Comment 2 Mark J. Cox 2002-07-31 08:51:38 UTC
An errata has been issued which should help the problem described in this bug report. 
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen 
this bug report if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2002-153.html


Comment 3 John Newbigin 2002-10-16 08:19:30 UTC
On Rh7.2, this causes breakage when the kernel runs out of semaphores.  running
php scripts directly leaks semaphores like a sive (2 per execution) and can
consume all available semaphore arrays in next to no time.

Until the bugs in php are fixed I will have to revert to the previous mm version.