linux-kernel - Re: nmi_watchdog=2 regression in 2.6.21

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Message-Id: <1188237331.2435.255.camel@dhcp193.mvista.com>
Date:	Mon, 27 Aug 2007 10:55:31 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	eranian@....hp.com
Cc:	Björn Steinbrink <B.Steinbrink@....de>,
	ak@...e.de, linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: nmi_watchdog=2 regression in 2.6.21

On Mon, 2007-08-27 at 10:54 -0700, Stephane Eranian wrote:
> Daniel,
> 
> You mentioned you have a development board with a dual Pentium-M.
> 
> What are the exact family/model numbers?
> 
> What Bjorn points you at below is a fix that applies to
> Intel Core Duo/Solo (Yonah) and Intel Core 2 series but not to
> regular Pentium-M (no architectural perfmon there).
> 
> I have successfully booted 2.6.23-rc3 on PIII, Opteron and Intel Core 2
> Duo with nmi_watchdog=2.

Here is the cpuinfo for processor 0 .. It's got four cores so this isn't
the full /proc/cpuinfo output ..

processor       : 0
vendor_id       : GenuineIntel 
cpu family      : 6
model           : 14
model name      : Intel(R) Dual Pentium(R) M CPU        @ 2.00GHz
stepping        : 8
cpu MHz         : 1992.000
cache size      : 2048 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htr
bogomips        : 4002.48
clflush size    : 64



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