Bug 11097 - INFO: recursive lock - when I press SysRQ+powerOff
Summary: INFO: recursive lock - when I press SysRQ+powerOff
Status: CLOSED CODE_FIX
Alias: None
Product: Other
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Oleg Nesterov
URL:
Keywords:
Depends on:
Blocks: 56331
  Show dependency tree
 
Reported: 2008-07-16 05:38 UTC by Zdenek Kabelac
Modified: 2013-04-09 06:23 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.26
Subsystem:
Regression: No
Bisected commit-id:

Attachments
snapshot of INFO trace (113.10 KB, image/jpeg)
2008-07-16 05:38 UTC, Zdenek Kabelac 		Details
Add an attachment (proposed patch, testcase, etc.)

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. :)
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