From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Huemer Subject: Re: 2.6.{30,31} x86_64 ahci problem - irq 23: nobody cared Date: Fri, 25 Sep 2009 02:02:57 +0200 Message-ID: <4ABC08B1.4060303@sbg.ac.at> References: <4ABBB8C2.2080901@sbg.ac.at> <200909242124.42187.elendil@planet.nl> <200909242140.10174.elendil@planet.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mx07.lb01.inode.at ([62.99.145.7]:29136 "EHLO mx.inode.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752988AbZIYAC4 (ORCPT ); Thu, 24 Sep 2009 20:02:56 -0400 In-Reply-To: <200909242140.10174.elendil@planet.nl> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Frans Pop Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, alexander.huemer@sbg.ac.at Frans Pop wrote: > On Thursday 24 September 2009, Frans Pop wrote: >>> error message from .31: >>> [157152.418524] irq 23: nobody cared >> If no others reply and the issue can be reproduced reliably, running a >> git bisect between v2.6.29 and v2.6.30 to trace the cause of the >> regression could be an option. > > Looking at the changes in drivers/ata/ahci.c, it might be worth to try if > reverting the following commit fixes the issue: > > commit a5bfc4714b3f01365aef89a92673f2ceb1ccf246 > Author: Tejun Heo > Date: Fri Jan 23 11:31:39 2009 +0900 > > ahci: drop intx manipulation on msi enable > > It's a bit of a wild guess though. i reproduced the issue. [ 3486.747729] Pid: 9573, comm: jc1 Tainted: G W 2.6.31-gentoo-blackbit #2 [ 3486.747731] Call Trace: [ 3486.747733] [] ? __report_bad_irq+0x30/0x7d [ 3486.747743] [] ? note_interrupt+0x107/0x170 [ 3486.747746] [] ? handle_fasteoi_irq+0x8a/0xaa [ 3486.747750] [] ? handle_irq+0x17/0x1d [ 3486.747752] [] ? do_IRQ+0x54/0xb2 [ 3486.747756] [] ? ret_from_intr+0x0/0xa [ 3486.747758] [ 3486.747759] handlers: [ 3486.747761] [] (ahci_interrupt+0x0/0x426) [ 3486.747765] Disabling IRQ #23 i will report back after a compile run of gcc-4.3.4 with a kernel without the commit you suggested. -alex