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Date: Mon, 13 Sep 2010 14:07:43 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Don Zickus <dzickus@redhat.com>,
        mingo@elte.hu, robert.richter@amd.com, fweisbec@gmail.com,
        linux-kernel@vger.kernel.org, ying.huang@intel.com,
        ming.m.lin@intel.com, yinghai@kernel.org, andi@firstfloor.org
Subject: Re: [PATCH 0/3 v2] nmi perf fixes
Message-ID: <20100913100743.GF5728@lenovo>
References: <1283454469-1909-1-git-send-email-dzickus@redhat.com> <1284118900.402.35.camel@laptop> <1284125693.402.58.camel@laptop> <1284126770.402.60.camel@laptop> <20100913085515.GC5728@lenovo> <AANLkTi=AceFvNNQmsDYE0MTbOX804P1+mewcr=bAFzXi@mail.gmail.com>
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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