Messages in this thread | | | Date | Mon, 29 Mar 2010 10:01:44 +0800 | From | Li Zefan <> | Subject | Re: [BUG] perf: hard lockup when using perf-sched |
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> This seems to work, in contrast to everything I tried yesterday. Not > exactly a thing of beauty, but at least it's an option, so... > > perf: fix perf sched record forkbomb deadlock > > perf sched record can deadlock a box should the holder of handle->data->lock > take an interrupt, and then attempt to acquire an rq lock held by a CPU trying > to acquire the same lock. Disable interrupts. >
This patch fixes the lockup on my box. Thanks!
> Signed-off-by: Mike Galbraith <efault@gmx.de> > Cc: Ingo Molnar <mingo@elte.hu> > Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> > Cc: Arnaldo Carvalho de Melo <acme@redhat.com> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Reported-by: Li Zefan <lizf@cn.fujitsu.com> > LKML-Reference: <new-submission> >
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