Bug 11097

Summary: INFO: recursive lock - when I press SysRQ+powerOff
Product: Other Reporter: Zdenek Kabelac (zdenek.kabelac)
Component: OtherAssignee: Oleg Nesterov (oleg)
Status: CLOSED CODE_FIX    
Severity: normal CC: alan, rui.zhang
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.26 Tree: Mainline
Regression: No
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. :)