linux-kernel - Re: AMD Quad Core clock problem?

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Message-ID: <4802608A.3040901@zytor.com>
Date:	Sun, 13 Apr 2008 12:35:38 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
CC:	Marc Perkel <mperkel@...oo.com>, Chris Snook <csnook@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: AMD Quad Core clock problem?

Lennart Sorensen wrote:
> 
> I have found that ntp tends to fail to work on any machine with spread
> spectrum clocking enabled.  On those machines disabling spread specturm
> in the BIOS seems to fix it.  I had to update the BIOS on one machine to
> even get the option to disable it though.
> 

"Any machine with spread spectrum clocking" is a pretty outrageous 
claim, since that includes just about 100% of all machines built today 
-- it's virtually impossible getting RFI certification without it.

	-hpa
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