linux-kernel - Re: irq/0/smp_affinity =3 doesn't seem to work

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Message-Id: <1165336346.3233.382.camel@laptopd505.fenrus.org>
Date:	Tue, 05 Dec 2006 17:32:26 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	"Raz Ben-Jehuda(caro)" <raziebe@...il.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: irq/0/smp_affinity =3 doesn't seem to work

On Tue, 2006-12-05 at 18:30 +0200, Raz Ben-Jehuda(caro) wrote:
> hello.
> 
> I have a dual cpu AMD machine, I noticed that
> only one timer0 is working in /proc/interrutps.
> setting proc/irq/0/smp_affinity to 3 does make
> any difference.

if you set it to 3 then the chipset gets to decide where the irq goes.
Many decide to send it to the first cpu. 

(not that it matters, the timer is so low frequency that it can go
anywhere without problems)

-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

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