From: Mike Fedyk <mfedyk@matchmail.com>
To: Andre Tomt <lkml@tomt.net>
Cc: linux-kernel@vger.kernel.org, Ethan Weinstein <lists@stinkfoot.org>
Subject: Re: HT apparently not detected properly on 2.4.23
Date: Wed, 3 Dec 2003 11:56:31 -0800 [thread overview]
Message-ID: <20031203195631.GC29119@mis-mike-wstn.matchmail.com> (raw)
In-Reply-To: <1070480450.15415.85.camel@slurv.pasop.tomt.net>
On Wed, Dec 03, 2003 at 08:40:51PM +0100, Andre Tomt wrote:
> On Wed, 2003-12-03 at 19:46, Ethan Weinstein wrote:
> > Hi,
> >
> > With 2.4.22, my Supermicro X5DPL-iGM-O (E7501 chipset) with 2
> > xeons@2.4ghz and hypertherading enabled shows 4 cpu's in
> > /proc/cpuinfo|proc/interrupts, with:
> > CONFIG_ACPI=y
> > CONFIG_ACPI_HT_ONLY=y
> > The same config with 2.4.23 only shows 2 cpus, even with:
> > CONFIG_NR_CPUS=4
>
> This may be the known problem about CONFIG_NR_CPU's not working properly
> in all cases. Try up'ing it to 32.
Depending on the logical addressing of your processors, CONFIG_NR_CPUS=8 may
work in this case too.
Some processors/motherboards logically address the CPUs other that 0-3 if
there are 4 processors.
Currently CONFIG_NR_CPUS needs to be big enough to hold the largest logical
processor number.
next prev parent reply other threads:[~2003-12-03 19:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-03 18:46 HT apparently not detected properly on 2.4.23 Ethan Weinstein
2003-12-03 19:40 ` Andre Tomt
2003-12-03 19:56 ` Mike Fedyk [this message]
2003-12-03 20:30 ` Ethan Weinstein
2003-12-03 22:40 ` William Lee Irwin III
2003-12-03 23:41 ` Ethan Weinstein
2003-12-03 23:58 ` William Lee Irwin III
2003-12-04 0:18 ` Ethan Weinstein
2003-12-05 17:12 ` Marcelo Tosatti
2003-12-05 17:48 ` William Lee Irwin III
2003-12-05 18:07 ` Re[2]: " Russell "Elik" Rademacher
[not found] ` <3FD0CD65.5080307@stinkfoot.org>
2003-12-05 23:02 ` Russell "Elik" Rademacher
2003-12-05 23:28 ` Ethan Weinstein
2003-12-05 23:31 ` Re[2]: " Russell "Elik" Rademacher
2003-12-05 23:38 ` William Lee Irwin III
2003-12-04 0:46 ` William Lee Irwin III
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