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 14:27:30 +0200 Message-ID: <4ABCB732.9050609@sbg.ac.at> References: <4ABBB8C2.2080901@sbg.ac.at> <4ABC08B1.4060303@sbg.ac.at> <4ABCA95C.3060202@sbg.ac.at> <200909251424.25334.elendil@planet.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mx11.lb01.inode.at ([62.99.145.13]:29312 "EHLO mx.inode.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752492AbZIYM1c (ORCPT ); Fri, 25 Sep 2009 08:27:32 -0400 In-Reply-To: <200909251424.25334.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, Tejun Heo , stable@kernel.org Frans Pop wrote: > On Friday 25 September 2009, Alexander Huemer wrote: > >> Alexander Huemer wrote: >> >>> Frans Pop wrote: >>> >>>> On Thursday 24 September 2009, Frans Pop wrote: >>>> >>>>>> error message from .31: >>>>>> [157152.418524] irq 23: nobody cared >>>>>> >>>> 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 >>>> >>> 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. >>> >> 4 compilation runs of gcc-4.3.4 finished without the issue re-appearing. >> it seems like you guessed right, Frans. >> > > Great. Glad to hear it worked out. > > >> i also found this: >> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commi >> t;h=31b239ad1ba7225435e13f5afc47e48eb674c0cc i'll report on bugzilla. >> > > So with the revert already in mainline for .32, the only thing left is for > that to get included in stable updates for .30 and .31. > > Cheers, > FJP > please see the last comment in [1]. can i do anything else to help ? thanks again -alex [1] http://bugzilla.kernel.org/show_bug.cgi?id=14124