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Bug 248141

Summary: lockup in shrink_zone when node out of memory
Product: Red Hat Enterprise Linux 4 Reporter: Ludek Smid <lsmid>
Component: kernelAssignee: Larry Woodman <lwoodman>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: high Docs Contact:
Priority: urgent    
Version: 4.0CC: clalance, jbaron, jplans, jrfuller, kzhang, tao
Target Milestone: ---Keywords: ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHSA-2007-0774 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-09-04 14:37:51 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: 205722    
Bug Blocks:    

Description Ludek Smid 2007-07-13 12:54:10 UTC
This bug has been copied from bug #205722 and has been proposed to be backported
to 4.5 z-stream (EUS).

Comment 2 Don Howard 2007-07-31 21:28:02 UTC
A patch addressing this issue has been included in build 2.6.9-55.0.3.EL.

Comment 5 Larry Woodman 2007-08-29 14:42:35 UTC
Can you run the repro_oom test with this kernel:

http://people.redhat.com/~lwoodman/kexin/


Larry Woodman


Comment 6 Larry Woodman 2007-08-30 20:51:08 UTC
The patch included in the 4.5.z kernel is not intended to fix the hang seen
running the repro-oom.C program.  This patch address a hang issue seen while
running a mix of Database, JVM and fils system backup operations all running at
the same time.  The patch has been tested and verified at the customers(Lehman
Bros, Goldman Sachs, etc).  Also, this patch has no effect on the system unless
/proc/sys/vm/pagecache is lowered from its default value of 100.

Larry Woodman

Comment 9 Red Hat Bugzilla 2007-09-04 14:37:51 UTC
An advisory 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-2007-0774.html