Bug 727590 – [xfs] mis-sized O_DIRECT I/O results in hung task timeouts [rhel-5.7.z]

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Bug 727590 - [xfs] mis-sized O_DIRECT I/O results in hung task timeouts [rhel-5.7.z]

Summary:	[xfs] mis-sized O_DIRECT I/O results in hung task timeouts [rhel-5.7.z]

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 5
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	5.6
Hardware:	x86_64 Linux

Priority	urgent Severity urgent
Target Milestone:	rc
Target Release:	---
Assigned To:	Phillip Lougher
QA Contact:	Boris Ranto
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	718232
Blocks:
	Show dependency tree / graph

Reported:	2011-08-02 10:38 EDT by RHEL Product and Program Management
Modified:	2011-09-13 11:45 EDT (History)
CC List:	14 users (show)

See Also:
Fixed In Version:	kernel-2.6.18-274.2.1.el5
Doc Type:	Bug Fix
Doc Text:	A problem with the XFS dio error handling was discovered. If a misaligned write I/O operation was issued, XFS would return -EINVAL without unlocking the inode's mutex. This caused any further operations on the inode to become unresponsive. This update adds a missing mutex_unlock operation to the dio error path, solving this issue.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-09-13 11:45:42 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:1212	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2011-09-06 17:41:35 EDT

Groups: None (edit)

Description RHEL Product and Program Management 2011-08-02 10:38:14 EDT

This bug has been copied from bug #718232 and has been proposed
to be backported to 5.7 z-stream (EUS).

Comment 4 Phillip Lougher 2011-08-15 12:40:09 EDT

in kernel-2.6.18-274.1.1.el5

linux-2.6-fs-xfs-add-a-missing-mutex_unlock-to-a-dio-error-path.patch

Comment 7 Martin Prpič 2011-09-08 10:58:47 EDT

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
A problem with the XFS dio error handling was discovered. If a misaligned write I/O operation was issued, XFS would return -EINVAL without unlocking the inode's mutex. This caused any further operations on the inode to become unresponsive. This update adds a missing mutex_unlock operation to the dio error path, solving this issue.

Comment 8 errata-xmlrpc 2011-09-13 11:45:42 EDT

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 therefore 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-2011-1212.html

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