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

From: Arnaldo Carvalho de Melo
Date: Fri May 15 2009 - 10:52:31 EST


Em Fri, May 15, 2009 at 03:56:04PM +0200, Ingo Molnar escreveu:
>
> * 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?

I'll try this with some java benchmarks we have, AMQP related, lets see
if I can reproduce it.

- Arnaldo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/