lkml.org 
[lkml]   [2007]   [Dec]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [feature] automatically detect hung TASK_UNINTERRUPTIBLE tasks
From
Date
Ingo Molnar <mingo@elte.hu> writes:

> this patch extends the soft-lockup detector to automatically
> detect hung TASK_UNINTERRUPTIBLE tasks. Such hung tasks are
> printed the following way:

That will likely trigger anytime a hard nfs/cifs mount loses its
server for 120s. To make this work you would need a new
TASK_UNINTERRUPTIBLE_EXTERNAL_EVENT or similar and mark
all the places which depend on those.

I've also seen kernel modules that use semaphores like wait queues
While that gives a little funny results (high load average) it worked
so far, until this patch.

-Andi


\
 
 \ /
  Last update: 2007-12-02 19:59    [W:0.517 / U:0.220 seconds]
©2003-2014 Jasper Spaans. hosted at Digital Ocean