Messages in this thread | | | Date | Sun, 20 Mar 2011 20:08:10 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH 1/5] perf events: add support for realtime clock attribute |
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On Sun, 20 Mar 2011, David Ahern wrote: > + > + if (sample_type & PERF_SAMPLE_REALTIME) > + data->realtime = ktime_to_ns(ktime_get_real());
That's going to live lock on any sample which happens to hit in a xtime_lock write locked section. I knew why I suggested adding tracepoints to the timekeeping code :)
Thanks,
tglx
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