From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752186AbaHRVVV (ORCPT ); Mon, 18 Aug 2014 17:21:21 -0400 Received: from mail-qa0-f49.google.com ([209.85.216.49]:46638 "EHLO mail-qa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751066AbaHRVVU (ORCPT ); Mon, 18 Aug 2014 17:21:20 -0400 Date: Mon, 18 Aug 2014 16:21:16 -0500 From: Tejun Heo To: Nick Krause Cc: Peter Zijlstra , Peter Hurley , Jesse Brandeburg , "linux-kernel@vger.kernel.org" , Dan Williams Subject: Re: PANIC: ata_qc_new_init crashes at boot Message-ID: <20140818212116.GD24023@mtj.dyndns.org> References: <53CEBFF2.7050100@hurleysoftware.com> <20140723083937.GA3416@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Sorry about the delay. Cc'ing Dan. On Wed, Aug 06, 2014 at 02:02:47PM -0400, Nick Krause wrote: > On Wed, Jul 23, 2014 at 4:39 AM, Peter Zijlstra wrote: > > On Tue, Jul 22, 2014 at 03:48:02PM -0400, Peter Hurley wrote: > >> [ +cc Tejun ] > >> > >> On 07/22/2014 03:26 PM, Jesse Brandeburg wrote: > >> > This is a repeatable panic, happens every boot (and prevents starting my system) > >> > > >> > [ 8.732993] sd 6:0:1:0: [sdb] Attached SCSI disk > >> > [ 8.733857] sda: sda1 sda2 sda3 > >> > [ 8.734318] sd 6:0:0:0: [sda] Attached SCSI disk > >> > [ 8.737943] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 > >> > [ 8.737947] IP: [] ata_qc_new_init+0x188/0x1b0 > > > > I too have this problem on one of my machines. Let me know if there's > > anything you need. Are you still seeing this on every boot? ISTR this getting fixed but I could be confused. Dan, the original thread is http://lkml.kernel.org/g/CAEuXFEy5=0XkqPiWQNiGbpi5EHSzq5f_U7Sj0t2bhO_1Lqe5vw@mail.gmail.com Thanks. -- tejun