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From: Ethan Weinstein <lists@stinkfoot.org>
To: linux-kernel@vger.kernel.org
Subject: Re: HT apparently not detected properly on 2.4.23
Date: Wed, 03 Dec 2003 15:30:10 -0500	[thread overview]
Message-ID: <3FCE47D2.1010102@stinkfoot.org> (raw)
In-Reply-To: <20031203195631.GC29119@mis-mike-wstn.matchmail.com>

Mike Fedyk wrote:

> 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.

Thanks.  This rings a bell, I seem to remember what I thought to be
"impossible numbering" on the CPUs such as "CPU7" or somesuch in a
dmesg.. Will have to look through logs.  I'll raise CONFIG_NR_CPUS and
see what I get.  Now, the question is, why do we only interrupt on CPU0
on this pasrticular box|chipset with a vanilla kernel? ACPI problem?  My
SMP G4 ppc has an option in menuconfig: "distribute interrupts on all
CPUs by default", the x86 has no such option.

Ethan



  reply	other threads:[~2003-12-03 20:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-03 18:46 Ethan Weinstein
2003-12-03 19:40 ` Andre Tomt
2003-12-03 19:56   ` Mike Fedyk
2003-12-03 20:30     ` Ethan Weinstein [this message]
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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