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    SubjectRe: [PATCH 0/3 v2] nmi perf fixes
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    On Mon, Sep 13, 2010 at 12:07 PM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
    > On Mon, Sep 13, 2010 at 11:54:59AM +0200, Stephane Eranian wrote:
    >> Robert,
    >>
    >> I have able to reproduce very easily on:
    >>
    >> processor     : 0
    >> vendor_id     : AuthenticAMD
    >> cpu family    : 16
    >> model         : 2
    >> model name    : AMD Phenom(tm) 8450 Triple-Core Processor
    >> stepping      : 3
    >>
    >> using:
    >>
    >> $ perf record -g ./hackbench 10
    >> Time: 0.415
    >> [ perf record: Woken up 3 times to write data ]
    >> [ perf record: Captured and wrote 0.706 MB perf.data (~30841 samples) ]
    >> $ dmesg | tail
    >> [  418.946001] Uhhuh. NMI received for unknown reason 3d on CPU 0.
    >> [  418.946001] Do you have a strange power saving mode enabled?
    >> [  418.946001] Dazed and confused, but trying to continue
    >>
    >> This is with 2.6.36-rc4-tip as of this morning from tip-x86.
    >>
    >
    > Hi Stephane, the hackbench is Ingo's one? I've been using
    > http://people.redhat.com/mingo/cfs-scheduler/tools/hackbench.c
    >
    No, it's one I found via google search:

    http://devresources.linuxfoundation.org/craiger/hackbench/
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