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Bug 471893

Summary:	kernel's inotify subsystem not send notification on inode link count change
Product:	Red Hat Enterprise Linux 5	Reporter:	Steve Grubb <sgrubb>
Component:	kernel	Assignee:	Alexander Viro <aviro>
Status:	CLOSED ERRATA	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.2	CC:	aviro
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-09-02 08:39:42 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:

Description Steve Grubb 2008-11-17 15:12:39 UTC

Description of problem:
The inotify system in the kernel doesn't send a notification event when an inode's link count is changed. This problem was encountered by a program, prelude-lml, watching for log rotation using inotify.

Patch fixing the problem is here:

ftp://ftp.linux.org.uk/pub/people/viro/in_attrib

In case it disappears soon, the original upstream fix is:

commit ece95912db94d98e202cbedb8f35206deb29d83d
Author: Jan Kara <jack>
Date:   Wed Feb 6 01:37:13 2008 -0800

Comment 1 RHEL Program Management 2009-01-27 20:39:26 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 2 RHEL Program Management 2009-02-16 15:39:44 UTC

Updating PM score.

Comment 3 Don Zickus 2009-02-23 20:02:42 UTC

in kernel-2.6.18-132.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Please do NOT transition this bugzilla state to VERIFIED until our QE team
has sent specific instructions indicating when to do so.  However feel free
to provide a comment indicating that this fix has been verified.

Comment 6 errata-xmlrpc 2009-09-02 08:39:42 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 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-2009-1243.html