From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932086AbWD1XJj (ORCPT ); Fri, 28 Apr 2006 19:09:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932452AbWD1XJj (ORCPT ); Fri, 28 Apr 2006 19:09:39 -0400 Received: from sccrmhc13.comcast.net ([204.127.200.83]:13523 "EHLO sccrmhc13.comcast.net") by vger.kernel.org with ESMTP id S932086AbWD1XJi (ORCPT ); Fri, 28 Apr 2006 19:09:38 -0400 Subject: IOAPIC (?) problems on a VIA K8T800 system From: Nicholas Miell To: Linux Kernel Cc: Ingo Molnar Content-Type: text/plain Date: Fri, 28 Apr 2006 16:09:35 -0700 Message-Id: <1146265775.2348.11.camel@entropy> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 (2.6.1-1.fc5.2.0.njm.1) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Randomly, my VIA K8T800-based system will stop receiving all interrupts (the columns in /proc/interrupts stop incrementing) from either the SATA controller or all of the UHCI controllers (IRQs 16 or 18, respectively). AFAICT, booting with noapic makes this go away, but since I can't reliably reproduce it, I don't know for sure if that in fact works around the problem. Removing and then reloading the driver module (or using sysfs to unbind/bind the devices) makes the problem temporarily go away. This is with the latest FC5 kernel (kernel-2.6.16-1.2096_FC5) on an SMP AMD64 system, but it's been doing this occasionally on every kernel I've used for quite some time now. -- Nicholas Miell