Bug 360621

Summary:	kernel dm crypt: memory leaks and workqueue memory exhaustion
Product:	Red Hat Enterprise Linux 5	Reporter:	Milan Broz <mbroz>
Component:	kernel	Assignee:	Milan Broz <mbroz>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0	CC:	agk, dwysocha, pvrabec
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2008-0314	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-05-21 15:00:15 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:	417271

Description Milan Broz 2007-10-31 17:28:52 UTC

There are several bugfixes in upstream dm-crypt code which

- fixes some memory leaks in dm-crypt
  commit 55b42c5ae9c048de25233434afc7b71b01bee9e6
  commit 815f9e32709b014a459919176a4f0feebd42731e

- fixes possible memory exhaustion and deadlock if many io requests are queued
and improves pefrormance on smp system
  commit 9934a8bea2fc67e6f07d74304eca2a91d251bfe8
  commit cabf08e4d3d1181d7c408edae97fb4d1c31518af

- fixes panics on device removal (temporary mapping in cryptsetup)
  commit 80b16c192e469541263d6bfd9177662ceb632ecc

This bugzilla covers backporting of these fixes.

Comment 1 RHEL Program Management 2007-10-31 17:45:32 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 3 Don Zickus 2007-12-17 19:37:21 UTC

in 2.6.18-61.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Comment 6 errata-xmlrpc 2008-05-21 15:00:15 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/RHBA-2008-0314.html