From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753741AbbLRMpb (ORCPT ); Fri, 18 Dec 2015 07:45:31 -0500 Received: from unicorn.mansr.com ([81.2.72.234]:47784 "EHLO unicorn.mansr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753298AbbLRMp2 convert rfc822-to-8bit (ORCPT ); Fri, 18 Dec 2015 07:45:28 -0500 From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= To: Julian Margetson Cc: Andy Shevchenko , Tejun Heo , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] ata: sata_dwc_460ex: use "dmas" DT property to find dma channel References: <1450221935-6034-1-git-send-email-mans@mansr.com> <1450364395.30729.136.camel@linux.intel.com> <1450367702.30729.146.camel@linux.intel.com> <1450371184.30729.175.camel@linux.intel.com> <5672F77F.4010306@candw.ms> <567302E8.5050303@candw.ms> <5673061A.4070700@candw.ms> <56732C04.9040100@candw.ms> <5673F277.2050607@candw.ms> <5673FD36.4050502@candw.ms> Date: Fri, 18 Dec 2015 12:45:19 +0000 In-Reply-To: <5673FD36.4050502@candw.ms> (Julian Margetson's message of "Fri, 18 Dec 2015 08:33:58 -0400") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Julian Margetson writes: >>> Builds now. Using my own .config. >> What changed? > I may have messed up the patch initially . Probably. Let's pretend it never happened. >>> [ 4.784199] sata-dwc 4bffd1000.sata: id 0, controller version 1.82 >>> [ 4.791186] scsi host0: sata-dwc >>> [ 4.794830] ata1: SATA max UDMA/133 irq 36 >>> [ 4.799463] sata_sil 0001:00:04.0: Applying R_ERR on DMA activate FIS errata fix >>> [ 4.807959] scsi host1: sata_sil >>> [ 4.811662] scsi host2: sata_sil >>> [ 4.815242] ata2: SATA max UDMA/100 mmio m512@0xd84280000 tf 0xd84280080 irq 21 >>> [ 4.822990] ata3: SATA max UDMA/100 mmio m512@0xd84280000 tf 0xd842800c0 irq 21 >>> >>> [ 5.143502] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) >>> [ 5.164367] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310) >>> [ 5.185174] ppc-of-ohci 4bffd0000.usb: irq 32, io mem 0x4bffd0000 >>> [ 5.206125] Unable to handle kernel paging request for data at address 0x00000000 >>> [ 5.228546] Faulting instruction address: 0xc043a2c8 >>> [ 5.248577] Vector: 300 (Data Access) at [eddafae0] >>> [ 5.268658] pc: c043a2c8: sata_dwc_qc_issue+0xb8/0x204 >> Well, that's not good. Can you translate that address to a line of code? >> > need some guidance on method . Enable CONFIG_DEBUG_INFO, then use this command: $ addr2line -e vmlinux 0xc043a2c8 Obviously substitute the actual crashing address if it changes. -- Måns Rullgård