From: William Lee Irwin III <wli@holomorphy.com>
To: Ethan Weinstein <lists@stinkfoot.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: HT apparently not detected properly on 2.4.23
Date: Wed, 3 Dec 2003 14:40:23 -0800 [thread overview]
Message-ID: <20031203224023.GV8039@holomorphy.com> (raw)
In-Reply-To: <3FCE2F8E.90104@stinkfoot.org>
On Wed, Dec 03, 2003 at 01:46:38PM -0500, Ethan Weinstein wrote:
> 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
> Also, I believe this has been reported before, but the system only seems
> to interrupt on CPU0 with either kernel, unless I apply a patch I found
> here:
> http://www.hardrock.org/kernel/2.4.22/irqbalance-2.4.22-MRC.patch
> or run the `irqbalance' program.. which I don't care to do. This
> problem _seems_ to be isolated to the Supermicro, as HT does seem
> properly detected on several other SMP systems I have at work (compaq
> ML370/ML380) with 2.4.23
You probably have sparse physical APIC ID's.
-- wli
next prev parent reply other threads:[~2003-12-03 22:40 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
2003-12-03 20:30 ` Ethan Weinstein
2003-12-03 22:40 ` William Lee Irwin III [this message]
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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