From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 14 Oct 2002 16:43:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 14 Oct 2002 16:43:44 -0400 Received: from packet.digeo.com ([12.110.80.53]:46784 "EHLO packet.digeo.com") by vger.kernel.org with ESMTP id ; Mon, 14 Oct 2002 16:43:42 -0400 Message-ID: <3DAB2DD9.B78639C5@digeo.com> Date: Mon, 14 Oct 2002 13:49:29 -0700 From: Andrew Morton X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.4.19-pre4 i686) X-Accept-Language: en MIME-Version: 1.0 To: David Mansfield CC: linux-kernel@vger.kernel.org Subject: Re: [BUG] raw over raid5: BUG at drivers/block/ll_rw_blk.c:1967 References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Oct 2002 20:49:29.0492 (UTC) FILETIME=[30D5A540:01C273C3] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Mansfield wrote: > > Hi everyone, > > I haven't been able to run raw over raid5 since 2.5.30 or so, but every > time I'm about to report it, a new kernel comes out and the problem > changes completely :-( Now I'm finally going to start getting out the info > it the hopes someone can fix it. The oops was triggered by attempting to > read from /dev/raw/raw1 (bound to /dev/md0) using dd. System info > follows oops: > > ------------[ cut here ]------------ > kernel BUG at drivers/block/ll_rw_blk.c:1967! I don't think you told us the kernel version? There have been recent fixes wrt sizing of the BIOs which the direct-io layer sends down. So please make sure that you're testing Linus's current -bk, or 2.5.42 plus http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.42/2.5.42-mm2/broken-out/dio-bio-add-fix-1.patch Either that, or raid5 is bust ;)