From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 20 Jan 2002 09:27:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 20 Jan 2002 09:27:01 -0500 Received: from colorfullife.com ([216.156.138.34]:51466 "EHLO colorfullife.com") by vger.kernel.org with ESMTP id ; Sun, 20 Jan 2002 09:26:45 -0500 Message-ID: <3C4AD38F.7754CCC4@colorfullife.com> Date: Sun, 20 Jan 2002 15:26:23 +0100 From: Manfred Spraul X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.5.2-pre11 i686) X-Accept-Language: en, de MIME-Version: 1.0 To: Ingo Molnar CC: linux-kernel@vger.kernel.org Subject: Re: [sched] [patch] migration-fixes-2.5.3-pre2-A1 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > */ > #define SPURIOUS_APIC_VECTOR 0xff > #define ERROR_APIC_VECTOR 0xfe > #define INVALIDATE_TLB_VECTOR 0xfd > #define RESCHEDULE_VECTOR 0xfc > -#define CALL_FUNCTION_VECTOR 0xfb > +#define TASK_MIGRATION_VECTOR 0xfb > +#define CALL_FUNCTION_VECTOR 0xfa > Are you sure it's a good idea to have 6 interrupts at priority 15? The local apic of the P6 has only one in-service entry and one holding entry for each priority. I'm not sure what happens if the entries overflow - either an interrupt is lost or the message is resent. <<<< Newest ia32 docu, vol3, chap. 7.6.4.3: The P6 family and Pentium processor's local APIC includes an in-service entryy and a holding entry for each priority level. Optimally, software should allocate no more than 2 interrupts per priority. <<<<< <<< Original PPro, Vol 3, chap 7.4.2: The processor's local APIC includes an in-service entry and a holding entry for each proirity level. To avoid losing interrupts, software should allocate no more than 2 interrupts per priority. <<<<< -- Manfred