Re: perf counter issue -WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter_list));

From: Ingo Molnar
Date: Fri May 15 2009 - 09:56:40 EST



* Srivatsa Vaddagiri <vatsa@xxxxxxxxxx> wrote:

> On Wed, May 13, 2009 at 10:24:33PM +0530, Srivatsa Vaddagiri wrote:
> > I am hitting this warning in kernel/exit.c (latest -tip code):
> >
> > WARN_ON_ONCE(!list_empty(&tsk->perf_counter_ctx.counter_list));
> >
> > I was using perf counters against a java benchmark.
>
> Basically using perf counters as:
>
> $ perf stat java ....

hm, is there a reproducer perhaps? Is there some class file i could
run with specific parameters to reproduce it?

Ingo
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