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From: Matthias Urlichs <smurf@smurf.noris.de>
To: Andi Kleen <ak@muc.de>
Cc: Andrew Morton <akpm@osdl.org>, john stultz <johnstul@us.ibm.com>,
	linux-kernel@vger.kernel.org, torvalds@osdl.org, bunk@stusta.de,
	lethal@linux-sh.org, hirofumi@mail.parknet.co.jp,
	asit.k.mallick@intel.com
Subject: Re: REGRESSION: the new i386 timer code fails to sync CPUs
Date: Sun, 30 Jul 2006 23:13:59 +0200	[thread overview]
Message-ID: <20060730211359.GZ3662@kiste.smurf.noris.de> (raw)
In-Reply-To: <20060730201005.GA85093@muc.de>

Hi,

Andi Kleen:
> > It is a "CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 03".
> 
> Was that on that system? I guess it could be checked for and TSC 
> be forced off. It sounds like a real CPU bug however.
> 
Board problem? After all, it has some very noxious DMI entries:

System Information
        Manufacturer: Intel Corporation
        Product Name: Nocona/Tumwater Customer Reference Board
        Version: Revision A0
        Serial Number: 0123456789
        UUID: 0A0A0A0A-0A0A-0A0A-0A0A-0A0A0A0A0A0A

... all of which are patently *wrong*.

You'd have to ask the people from Tyan what the hell they were smoking
when they blindly copied the Intel data.

At least the different CPU speed issue is a known bug, fixed by a
BIOS update. I'll postpone that until we have a working kernel fix,
for obvious reasons.

-- 
Matthias Urlichs   |   {M:U} IT Design @ m-u-it.de   |  smurf@smurf.noris.de
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
 - -
You might be a Redneck if ...
You consider a six-pack and a bug-zapper high-quality entertainment.

  parent reply	other threads:[~2006-07-30 21:15 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-22 23:36 REGRESSION: the new i386 timer code fails to sync CPUs Matthias Urlichs
2006-07-23  0:36 ` Andrew Morton
2006-07-23  8:16   ` Matthias Urlichs
2006-07-23 11:46     ` Andrew Morton
2006-07-23 12:08       ` Matthias Urlichs
2006-07-23 12:37         ` Andrew Morton
2006-07-23 12:58           ` Matthias Urlichs
2006-07-24 15:52           ` Siddha, Suresh B
2006-07-24 15:58           ` john stultz
2006-07-24 17:17             ` Matthias Urlichs
2006-07-24 17:51               ` Andi Kleen
2006-07-24 20:54                 ` john stultz
2006-07-30  9:03                   ` Andrew Morton
2006-07-30  9:49                     ` Matthias Urlichs
2006-07-30 20:10                     ` Andi Kleen
2006-07-30 20:55                       ` Andrew Morton
2006-07-30 21:13                       ` Matthias Urlichs [this message]
2006-07-30 21:20                         ` Arjan van de Ven
2006-07-30 21:55                           ` Matthias Urlichs
2006-08-01  1:47                             ` Siddha, Suresh B
2006-08-01  3:14                               ` Matthias Urlichs
2006-07-30 21:57                         ` Andi Kleen
2006-07-30 22:28                           ` Matthias Urlichs
2006-07-31 14:24                     ` Matthias Urlichs
2006-07-24 17:39             ` Andi Kleen

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