Bug 173206

Summary:	kernel dm snapshot: bio_list_merge fix
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
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2006-0132	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-03-07 20:47:42 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:	168429

Description Alasdair Kergon 2005-11-14 23:03:59 UTC

Deadlocking, due to the fact that the origin_bios list
was NULL on all of the exceptions.

 [<00000000002958d8>] __flush_bios+0xcc/0x144
 [<0000000000296032>] pending_complete+0xaa/0x2ec
 [<00000000002974da>] persistent_commit+0x1b2/0x1d0
 [<00000000002942f8>] run_complete_job+0x48/0x58
 [<00000000002946e2>] process_jobs+0x22/0x13c
 [<000000000029481c>] do_work+0x20/0x48
 [<000000000012a188>] worker_thread+0x178/0x228
 [<000000000012f732>] kthread+0x122/0x128
 [<0000000000104f8a>] kernel_thread_starter+0x6/0xc
 [<0000000000104f84>] kernel_thread_starter+0x0/0xc

Comment 1 Alasdair Kergon 2005-11-15 17:27:38 UTC

dm-snapshot-bio_list-fix.patch

Comment 6 Red Hat Bugzilla 2006-03-07 20:47:42 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-2006-0132.html