Bug 562949

Summary:	problems with aliased dentries and case-insensitivity in CIFS readdir code
Product:	Red Hat Enterprise Linux 4	Reporter:	Jeff Layton <jlayton>
Component:	kernel	Assignee:	Jeff Layton <jlayton>
Status:	CLOSED ERRATA	QA Contact:	Filesystem QE <fs-qe>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.9	CC:	kzhang, pbenas, rwheeler, steved
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	562947	Environment:
Last Closed:	2011-02-16 15:30:00 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:	562788, 562947
Bug Blocks:

Description Jeff Layton 2010-02-08 20:07:19 UTC

Upstream has has a rash of elusive problem reports in the last several months with CIFS. I finally was able to get a reproducer and track down the cause of at least one of them.

http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git;a=commitdiff;h=f12f98dba6ea1517cd7fbb912208893b9c014c15

...I also have a patch queued up to fix the way dentries are hashed in the readdir code for case-insensitive mounts.

Note that these bugs are generally papered over on RHEL4 by the fact that "noserverino" is the default there.

Comment 2 RHEL Program Management 2010-08-23 17:59:36 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 Vivek Goyal 2010-10-13 16:13:34 UTC

Committed in 89.42.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/

Comment 8 Mike Gahagan 2011-01-05 16:52:54 UTC

confirmed the fix is in the -94 kernel. I wasn't able to reproduce the problem with the testcase.

Comment 9 errata-xmlrpc 2011-02-16 15:30:00 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 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-2011-0263.html