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Re: [BUG] Core2 cpu triggers hard lockup with perf test

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject Re: [BUG] Core2 cpu triggers hard lockup with perf test
Date 2016-03-01 18:40 +0100
Message-ID <r7Wr7-3Ko-9@gated-at.bofh.it> (permalink)
References (2 earlier) <r7ODg-793-5@gated-at.bofh.it> <r7QlJ-8lK-23@gated-at.bofh.it> <r7TWh-216-7@gated-at.bofh.it> <r7TWi-216-15@gated-at.bofh.it> <r7W7L-3DI-11@gated-at.bofh.it>
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> I tried what Andy suggested below (not sure what he meant by Merom,
> I took PEBS format0 instead), works for me

Thanks Jiri. Patch looks good to me.

Reviewed-by: Andi Kleen <ak@linux.intel.com>

We may want to make this buffer size a configurable anyways because
with multi-record PEBS it can make sense to use much larger buffers
to reduce overhead.  But that could be done separately.

-Andi

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Thread

[BUG] Core2 cpu triggers hard lockup with perf test Jiri Olsa <jolsa@redhat.com> - 2016-02-27 13:40 +0100
  Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-02-27 15:50 +0100
  Re: [BUG] Core2 cpu triggers hard lockup with perf test Andi Kleen <andi@firstfloor.org> - 2016-02-27 16:50 +0100
  RE: [BUG] Core2 cpu triggers hard lockup with perf test "Liang, Kan" <kan.liang@intel.com> - 2016-02-29 23:20 +0100
    Re: [BUG] Core2 cpu triggers hard lockup with perf test Jiri Olsa <jolsa@redhat.com> - 2016-03-01 08:00 +0100
    Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 10:20 +0100
      Re: [BUG] Core2 cpu triggers hard lockup with perf test Jiri Olsa <jolsa@redhat.com> - 2016-03-01 12:10 +0100
        Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 12:30 +0100
        Re: [BUG] Core2 cpu triggers hard lockup with perf test Andi Kleen <andi@firstfloor.org> - 2016-03-01 16:00 +0100
          Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 16:00 +0100
            Re: [BUG] Core2 cpu triggers hard lockup with perf test Jiri Olsa <jolsa@redhat.com> - 2016-03-01 18:20 +0100
              Re: [BUG] Core2 cpu triggers hard lockup with perf test Andi Kleen <andi@firstfloor.org> - 2016-03-01 18:40 +0100
              Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 18:50 +0100
                Re: [BUG] Core2 cpu triggers hard lockup with perf test Jiri Olsa <jolsa@redhat.com> - 2016-03-01 19:10 +0100
                Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 19:20 +0100
              Re: [BUG] Core2 cpu triggers hard lockup with perf test Peter Zijlstra <peterz@infradead.org> - 2016-03-01 19:20 +0100
                [PATCH] perf x86: Use PAGE_SIZE for PEBS buffer size on Core2 Jiri Olsa <jolsa@redhat.com> - 2016-03-01 20:10 +0100

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