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Date: Mon, 13 Sep 2010 14:07:43 +0400 From: Cyrill Gorcunov <gorcunov@...il.com> To: Stephane Eranian <eranian@...gle.com> Cc: Peter Zijlstra <peterz@...radead.org>, Don Zickus <dzickus@...hat.com>, mingo@...e.hu, robert.richter@....com, fweisbec@...il.com, linux-kernel@...r.kernel.org, ying.huang@...el.com, ming.m.lin@...el.com, yinghai@...nel.org, andi@...stfloor.org Subject: Re: [PATCH 0/3 v2] nmi perf fixes 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 -- Cyrill -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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