Bug 11097

Summary:	INFO: recursive lock - when I press SysRQ+powerOff
Product:	Other	Reporter:	Zdenek Kabelac (zdenek.kabelac)
Component:	Other	Assignee:	Oleg Nesterov (oleg)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	alan, rui.zhang
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.26	Subsystem:
Regression:	No	Bisected commit-id:
Bug Depends on:
Bug Blocks:	56331
Attachments:	snapshot of INFO trace

Description Zdenek Kabelac 2008-07-16 05:38:02 UTC

Latest working kernel version: 2.6.26
Earliest failing kernel version: not really sure - but it used to work in some previous -rcX - though I'm not pressing/checking this key frequently
Distribution: Debian Unstable
Hardware Environment: T61, 2GB, C2D   x86_64
Software Environment: Debian Unstable   (32bit installation)
Problem Description:

INFO: possible recursive locking detected  
during cleanup_workqueue_thread - see the attached image for camera snapshot

Steps to reproduce:

SysRQ S + U + O

(B for me for unknown reason doesn't work)

I'm not sure in which Component this bugs belongs - thus leaving to other_other maintainer to pass it to the right place

Comment 1 Zdenek Kabelac 2008-07-16 05:38:52 UTC

Created attachment 16837 [details]
snapshot of INFO trace

Comment 2 Zdenek Kabelac 2008-07-16 05:58:47 UTC

might be related as well with this bug #10897

http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-07/msg04003.html

I'll try later if this patch fixes my problem.

Combine them if they are the same bug.

Comment 3 Zhang Rui 2008-07-16 17:52:15 UTC

it should be the same problem.
just give it a try. :)