Bug 189797

Summary:	dm: Fix mapped device references
Product:	Red Hat Enterprise Linux 4	Reporter:	Alasdair Kergon <agk>
Component:	kernel	Assignee:	Alasdair Kergon <agk>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0	CC:	jbaron, jbrassow
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2006-0575	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-08-10 23:11:36 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:	181409

Description Alasdair Kergon 2006-04-24 18:41:25 UTC

Several races have been reported connected with the allocation, referencing and
destruction of mapped devices which can lead to crashes.

This set of patches tightens up the code.

Comment 1 Jason Baron 2006-04-28 17:22:56 UTC

committed in stream U4 build 34.26. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 4 Mike Gahagan 2006-07-13 20:48:37 UTC

Patch is in 40.1.EL, setting verified as there doesn't appear to be a test case
for this.

Comment 6 Red Hat Bugzilla 2006-08-10 23:11:36 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-2006-0575.html