Messages in this thread | | | Subject | Re: [PATCH 2.6.27-rc5 re-resubmit] Fix itimer/many thread hang. | From | Frank Mayhar <> | Date | Tue, 23 Sep 2008 15:56:00 -0700 |
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On Tue, 2008-09-23 at 17:59 +0400, Oleg Nesterov wrote: > Looks like task_delta_exec() forgets to unlock rq.
Actually it shouldn't be locking rq. I failed to delete the lock.
> Confused. Unless I misread the patch, tgtimes->totals can be NULL > on UP too?
Yeah. I totally messed up on this, too many things going on at once. I've eliminated the SMP/UP split in sched_stats.h and pulled it all into the three basic functions.
> (of course, this can't explain the crash)
I'll be investigating this in the morning (I'm at home today and without a test box). -- Frank Mayhar <fmayhar@google.com> Google, Inc.
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