linux-kernel - Re: REGRESSION: the new i386 timer code fails to sync CPUs

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Date:	Sun, 30 Jul 2006 23:55:09 +0200
From:	Matthias Urlichs <smurf@...rf.noris.de>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Andi Kleen <ak@....de>, Andrew Morton <akpm@...l.org>,
	john stultz <johnstul@...ibm.com>,
	linux-kernel@...r.kernel.org, torvalds@...l.org, bunk@...sta.de,
	lethal@...ux-sh.org, hirofumi@...l.parknet.co.jp,
	asit.k.mallick@...el.com
Subject: Re: REGRESSION: the new i386 timer code fails to sync CPUs

Hi,

Arjan van de Ven:
> if the hardware side is different *speed*.. then a tsc sync ain't going
> to work... sure we write to it but it's immediately out of sync again
> 
No, it's in fact the same speed -- the BIOS just reads it wrongly.

I checked: the two date values do advance at the same rate.

-- 
Matthias Urlichs   |   {M:U} IT Design @ m-u-it.de   |  smurf@...rf.noris.de
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
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