From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751252AbXBKDeU (ORCPT ); Sat, 10 Feb 2007 22:34:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751711AbXBKDeU (ORCPT ); Sat, 10 Feb 2007 22:34:20 -0500 Received: from mail.nagafix.co.uk ([194.145.196.85]:43802 "EHLO mail.nagafix.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751252AbXBKDeT (ORCPT ); Sat, 10 Feb 2007 22:34:19 -0500 Message-ID: <45CE8D74.6030700@nagafix.co.uk> Date: Sun, 11 Feb 2007 03:28:52 +0000 From: Antoine Martin User-Agent: Thunderbird 1.5.0.9 (X11/20070102) MIME-Version: 1.0 To: Andi Kleen , linux-kernel@vger.kernel.org Subject: reporting lost ticks References: <45C4EBA8.8080704@nagafix.co.uk> <20070205130807.GA46862@muc.de> In-Reply-To: <20070205130807.GA46862@muc.de> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: > [Snip] > You run with report_lost_ticks and report the results to linux-kernel Doing as I am told, here we go: This is 100% reproducible, ie: just doing a big rsync between 2 disks and burning a DVD at the same time. Note: the system isn't very responsive when this happens, most notably: audio seems to jump every ~1second. Hardware is an ASUS K8N-DL with a pair of Opteron 270s, 4GB PC3200, SATA disks, software raid. time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip __do_softirq+0x44/0xc0) time.c: Lost 6 timer tick(s)! rip _spin_unlock_irq+0x10/0x40) You can find a much longer version of the kernel output here: http://194.145.196.85/ticks http://194.145.196.85/ticks2 If you need anything else just let me know. Antoine