Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1346673

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

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [BUG] Core2 cpu triggers hard lockup with perf test
Date 2016-03-01 16:00 +0100
Message-ID <r7TWi-216-15@gated-at.bofh.it> (permalink)
References <r6Mka-2Wn-13@gated-at.bofh.it> <r7Eky-tv-19@gated-at.bofh.it> <r7ODg-793-5@gated-at.bofh.it> <r7QlJ-8lK-23@gated-at.bofh.it> <r7TWh-216-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Tue, Mar 01, 2016 at 03:51:05PM +0100, Andi Kleen wrote:
> > im on it.. also the patch that makes this happen just
> > enlarge the buffer for PEBS:
> > 
> >   156174999dd1 perf/intel/x86: Enlarge the PEBS buffer
> > 
> > but I did not find anyaPEBS buffer lenght limitations in SDM
> 
> May be the easiest would be to just keep the old buffer size
> on Merom.

I would still like to know why it breaks though. Just changing code
about because it makes fail go away is never the right answer.

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

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

csiph-web