Bug 842982

Summary: Change network with netconsole loaded cause kernel panic [rhel-6.3.z]
Product: Red Hat Enterprise Linux 6 Reporter: RHEL Program Management <pm-rhel>
Component: kernelAssignee: Frantisek Hrbata <fhrbata>
Status: CLOSED ERRATA QA Contact: Monson Shao <jshao>
Severity: high Docs Contact:
Priority: high    
Version: 6.3CC: acathrow, bsarathy, ccui, cshao, dhoward, fdeutsch, gouyang, hadong, huiwa, jbenc, jboggs, jshao, kzhang, leiwang, mburns, moli, ovirt-maint, pm-eus, ycui, yuachen
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: kernel-2.6.32-279.7.1.el6 Doc Type: Bug Fix
Doc Text:
When the netconsole module was configured over bridge and the "service network restart" command was executed, a deadlock could occur, resulting in a kernel panic. This was caused by recursive rtnl locking by both bridge and netconsole code during network interface unregistration. With this update, the rtnl lock usage is fixed, and the kernel no longer crashes in this scenario.
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-09-25 19:00:14 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: 839266    
Bug Blocks:    

Description RHEL Program Management 2012-07-25 08:21:47 UTC
This bug has been copied from bug #839266 and has been proposed
to be backported to 6.3 z-stream (EUS).

Comment 8 errata-xmlrpc 2012-09-25 19:00:14 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2012-1304.html