Groups > linux.kernel > #1519141

Re: [PATCH] perf/x86: Fix overlap counter scheduling bug

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] perf/x86: Fix overlap counter scheduling bug
Date	2016-11-10 17:50 +0100
Message-ID	<sC0I2-h7-31@gated-at.bofh.it> (permalink)
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On Thu, Nov 10, 2016 at 09:00:13AM +0100, Ingo Molnar wrote:
> Would it be possible to also add debug code (or some other mechanism) to disallow
> such buggy EVENT_CONSTRAINT_OVERLAP() definitions?

Should certainly be possible if someone has the time for it I think. The
rules are fairly straight forward, the only tricky bit is detectoring
the actual overlap condition.

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[PATCH] perf/x86: Fix overlap counter scheduling bug Jiri Olsa <jolsa@kernel.org> - 2016-11-01 16:50 +0100
  Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Peter Zijlstra <peterz@infradead.org> - 2016-11-08 13:30 +0100
    Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Jiri Olsa <jolsa@redhat.com> - 2016-11-08 14:20 +0100
    Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Andi Kleen <andi@firstfloor.org> - 2016-11-08 16:20 +0100
      RE: [PATCH] perf/x86: Fix overlap counter scheduling bug "Liang, Kan" <kan.liang@intel.com> - 2016-11-08 17:30 +0100
        Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Peter Zijlstra <peterz@infradead.org> - 2016-11-08 18:00 +0100
          RE: [PATCH] perf/x86: Fix overlap counter scheduling bug "Liang, Kan" <kan.liang@intel.com> - 2016-11-08 18:30 +0100
            Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Peter Zijlstra <peterz@infradead.org> - 2016-11-08 19:30 +0100
              Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Robert Richter <rric@kernel.org> - 2016-11-09 15:30 +0100
                Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Peter Zijlstra <peterz@infradead.org> - 2016-11-09 17:00 +0100
                Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Ingo Molnar <mingo@kernel.org> - 2016-11-10 09:10 +0100
                Re: [PATCH] perf/x86: Fix overlap counter scheduling bug Peter Zijlstra <peterz@infradead.org> - 2016-11-10 17:50 +0100

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