From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265782AbUHAKuf (ORCPT ); Sun, 1 Aug 2004 06:50:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265789AbUHAKuf (ORCPT ); Sun, 1 Aug 2004 06:50:35 -0400 Received: from mx1.redhat.com ([66.187.233.31]:7117 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S265782AbUHAKud (ORCPT ); Sun, 1 Aug 2004 06:50:33 -0400 Date: Sun, 1 Aug 2004 06:49:45 -0400 (EDT) From: Ingo Molnar X-X-Sender: mingo@devserv.devel.redhat.com To: Felipe Alfaro Solana cc: Lee Revell , Shane Shrybman , Ingo Molnar , linux-kernel Subject: Re: [patch] voluntary-preempt-2.6.8-rc2-L2 PS2 keyboard gone south In-Reply-To: <1091322692.1860.5.camel@teapot.felipe-alfaro.com> Message-ID: References: <1091196403.2401.10.camel@mars> <20040730152040.GA13030@elte.hu> <1091209106.2356.3.camel@mars> <1091229695.2410.1.camel@teapot.felipe-alfaro.com> <1091232345.1677.20.camel@mindpipe> <1091236384.2672.0.camel@teapot.felipe-alfaro.com> <1091246222.1677.65.camel@mindpipe> <1091319840.2386.3.camel@teapot.felipe-alfaro.com> <1091320373.20819.74.camel@mindpipe> <1091322692.1860.5.camel@teapot.felipe-alfaro.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 1 Aug 2004, Felipe Alfaro Solana wrote: > It turns out that my lock ups where related to APIC. Disabling APIC > seems to get rid of those lock ups. ah ... that makes sense. It is most likely level-triggered IO-APIC interrupts that break. Could you try to turn off redirection for every interrupt that says 'IO-APIC-level' in /proc/interrupts - does that stabilize things? (besides the 'noapic' workaround you already discovered.) How does your /proc/interrupts look like btw? the 'XT-PIC' interrupt controller (i8259A) is fine for redirection. (and that's what i used for testing almost exclusively.) Ingo