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Date: Sun, 15 Dec 2002 19:17:48 +0000
From: Dave Jones <davej@codemonkey.org.uk>
To: Scott Robert Ladd <scott@coyotegulch.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kernel for Pentium 4 hyperthreading?
Message-ID: <20021215191748.GA24207@suse.de>
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On Sun, Dec 15, 2002 at 12:40:59PM -0500, Scott Robert Ladd wrote:
 > Dave Jones wrote:
 > > Ah, apologies. Yes. In this case, you win. I bit the same problem you
 > > had btw with this box in 2.4. You need an updated BIOS. Contact Intel.
 > 
 > I'll ask Intel if there's a BIOS update. Computers are almost as bad as
 > games now; the first thing you need to do before using them is patch!
 > 
 > What evokes my curiosity is that the 2.5.51 kernel detects and correctly
 > uses the processor siblings, while 2.4.20 does not. Given that 2.5.51 is
 > running quite well, I think I'll just stay on the bleeding edge of Linux for
 > a while.

I think the problem was a missing MP table in the factory-shipped BIOS.
2.5 used ACPI to enumerate the siblings, whereas the 2.4 ACPI is a
little out of date in that department.
At least that was my random guess when I hit that problem.

		Dave

-- 
| Dave Jones.        http://www.codemonkey.org.uk
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