Messages in this thread | | | Date | Tue, 29 Mar 2011 21:53:29 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [RFC][PATCH] lockdep: Print a nice description of an irq locking issue |
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On Tue, 29 Mar 2011, Steven Rostedt wrote: > other info that might help us debug this: > > Chain exists of: > &rq->lock --> lockA --> lockC > > Possible interrupt unsafe locking scenario: > > CPU0 CPU1 > ---- ---- > lock(lockC); > local_irq_disable(); > lock(&rq->lock); > lock(lockA); > <Interrupt> > lock(&rq->lock) > > *** DEADLOCK ***
Cool stuff. I always have to twist my brain around those splats as well :)
Thanks,
tglx
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