Messages in this thread | | | Date | Mon, 11 Apr 2005 10:42:17 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] Priority Lists for the RT mutex |
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* Perez-Gonzalez, Inaky <inaky.perez-gonzalez@intel.com> wrote:
> >OTOH, deadlock detection is another issue. It's quite expensive and i'm > >not sure we want to make it a runtime thing. But for fusyn's deadlock > >detection and safe teardown on owner-exit is a must-have i suspect? > > Not really. Deadlock check is needed on PI, so it can be done at the > same time (you have to walk the chain anyway). In any other case, it > is an option you can request (or not).
well, i was talking about the mutex code in PREEMPT_RT. There deadlock detection is an optional debug feature. You dont _have_ to do deadlock detection for the kernel's locks, and there's a difference in performance.
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