Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753947Ab0AYPZF (ORCPT ); Mon, 25 Jan 2010 10:25:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753694Ab0AYPZE (ORCPT ); Mon, 25 Jan 2010 10:25:04 -0500 Received: from mail-iw0-f186.google.com ([209.85.223.186]:52159 "EHLO mail-iw0-f186.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750849Ab0AYPZD convert rfc822-to-8bit (ORCPT ); Mon, 25 Jan 2010 10:25:03 -0500 MIME-Version: 1.0 In-Reply-To: <4B5C963D.8040802@rozsnyo.com> References: <4B5C963D.8040802@rozsnyo.com> Date: Mon, 25 Jan 2010 17:25:02 +0200 X-Google-Sender-Auth: 4d87df8054ae36da Message-ID: <5ec358371001250725l40b13060md880001c96be165f@mail.gmail.com> Subject: Re: bio too big - in nested raid setup From: Marti Raudsepp To: =?ISO-8859-1?Q?Ing=2E_Daniel_Rozsny=F3?= Cc: linux-kernel@vger.kernel.org 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 Content-Length: 788 Lines: 22 2010/1/24 "Ing. Daniel Rozsny?" : > Hello, > ?I am having troubles with nested RAID - when one array is added to the > other, the "bio too big device md0" messages are appearing: > > bio too big device md0 (144 > 8) > bio too big device md0 (248 > 8) > bio too big device md0 (32 > 8) I *think* this is the same bug that I hit years ago when mixing different disks and 'pvmove' It's a design flaw in the DM/MD frameworks; see comment #3 from Milan Broz: http://bugzilla.kernel.org/show_bug.cgi?id=9401#c3 Regards, Marti -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/