From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [Bugme-new] [Bug 10752] New: pata_isapnp driver causes the ata layer to go splat Date: Mon, 19 May 2008 15:25:49 -0700 Message-ID: <20080519152549.09be22b2.akpm@linux-foundation.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:36927 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752294AbYESW03 (ORCPT ); Mon, 19 May 2008 18:26:29 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Cc: bugme-daemon@bugzilla.kernel.org, Arjan van de Ven On Mon, 19 May 2008 14:46:08 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=10752 > > Summary: pata_isapnp driver causes the ata layer to go splat > Product: IO/Storage > Version: 2.5 > KernelVersion: 2.6.25 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Serial ATA > AssignedTo: jgarzik@pobox.com > ReportedBy: arjan@linux.intel.com > > > This happens quite a bit based on Fedora 9 feedback, but already happened in > 2.6.24 and possibly earlier. > > http://www.kerneloops.org/search.php?search=bad_io_access > > shows the basic backtrace: > *bad_io_access > ioread8 > ata_altstatus > ata_std_dev_select > ata_dev_select > ata_qc_issue_prot > ata_qc_issue > ata_exec_internal_sg > ata_exec_internal > ata_dev_read_id > ata_eh_recover > ata_do_eh > ata_bmdma_drive_eh > ata_bmdma_error_handler > ata_scsi_error > scsi_error_handler > kthread > kernel_thread_helper > > in all cases, this happens while pata_isapnp is being loaded; so it's not > unlikely that this driver stomps on some other driver which then goes splat > Unclear who maintains pata_isapnp?