From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752526AbbAMP1o (ORCPT ); Tue, 13 Jan 2015 10:27:44 -0500 Received: from mail-qg0-f46.google.com ([209.85.192.46]:62819 "EHLO mail-qg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751132AbbAMP1m (ORCPT ); Tue, 13 Jan 2015 10:27:42 -0500 Date: Tue, 13 Jan 2015 10:27:38 -0500 From: Tejun Heo To: Sergey Senozhatsky Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: ata_eh_report() unable to handle kernel NULL pointer dereference Message-ID: <20150113152738.GC2976@htj.dyndns.org> References: <20150113142509.GA985@swordfish> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150113142509.GA985@swordfish> 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 On Tue, Jan 13, 2015 at 11:25:09PM +0900, Sergey Senozhatsky wrote: > Hi, > > linux-next 20150112 > > [ 934.572323] ata2: exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen > [ 934.572329] ata2: irq_stat 0x00400040, connection status changed > [ 934.572332] ata2: SError: { HostInt PHYRdyChg 10B8B DevExch } > [ 934.572341] BUG: unable to handle kernel NULL pointer dereference at 0000000000000460 > [ 934.572346] IP: [] ata_eh_report+0x3ad/0x74d Any chance you can run addr2line on it and map it to the source line? Thanks. -- tejun