From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nageswara R Sastry Subject: Re: [BUG] Kernel Bug at fs/btrfs/volumes.c:3638 Date: Mon, 27 Feb 2012 11:26:28 +0530 Message-ID: <4F4B1B0C.4040100@linux.vnet.ibm.com> References: <4F476959.2010400@linux.vnet.ibm.com> <4F487BB5.1060706@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Cc: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, chris.mason@oracle.com, kamalesh@linux.vnet.ibm.com To: Liu Bo Return-path: In-Reply-To: <4F487BB5.1060706@cn.fujitsu.com> List-ID: On =E0=B0=AB=E0=B0=BF=E0=B0=AC=E0=B1=8D=E0=B0=B0=E0=B0=B5=E0=B0=B0=E0=B0= =BF 25 =E0=B0=B6=E0=B0=A8=E0=B0=BF=E0=B0=B5=E0=B0=BE=E0=B0=B0=E0=B0=82 = 2012 =E0=B0=89. 11:42, Liu Bo wrote: > Hi, I guess you're mounting a quite small partition. Given that this=20 > oops is in such an early stage, could you please show 1) your=20 > mkfs.btrfs options and 2) the log of "btrfs-debug-tree /dev/loop0"?=20 > thanks, liubo Here are the steps with options, 1. dd if=3D/dev/zero of=3D bs=3D1M count=3D16 2. mkfs.btrfs 3. Corrupt the using 'mangle' 4. mount -t btrfs -o loop 5. # btrfs-debug-tree Couldn't map the block 3221392384 Couldn't read chunk root unable to open # btrfs-debug-tree /dev/loop0 Couldn't map the block 3221392384 Couldn't read chunk root unable to open /dev/loop0 Regards, R.Nageswara Sastry -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753861Ab2B0F4p (ORCPT ); Mon, 27 Feb 2012 00:56:45 -0500 Received: from e23smtp08.au.ibm.com ([202.81.31.141]:34672 "EHLO e23smtp08.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751268Ab2B0F4o (ORCPT ); Mon, 27 Feb 2012 00:56:44 -0500 Message-ID: <4F4B1B0C.4040100@linux.vnet.ibm.com> Date: Mon, 27 Feb 2012 11:26:28 +0530 From: Nageswara R Sastry User-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 To: Liu Bo CC: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, chris.mason@oracle.com, kamalesh@linux.vnet.ibm.com Subject: Re: [BUG] Kernel Bug at fs/btrfs/volumes.c:3638 References: <4F476959.2010400@linux.vnet.ibm.com> <4F487BB5.1060706@cn.fujitsu.com> In-Reply-To: <4F487BB5.1060706@cn.fujitsu.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit x-cbid: 12022619-5140-0000-0000-000000CF174B Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On ఫిబ్రవరి 25 శనివారం 2012 ఉ. 11:42, Liu Bo wrote: > Hi, I guess you're mounting a quite small partition. Given that this > oops is in such an early stage, could you please show 1) your > mkfs.btrfs options and 2) the log of "btrfs-debug-tree /dev/loop0"? > thanks, liubo Here are the steps with options, 1. dd if=/dev/zero of= bs=1M count=16 2. mkfs.btrfs 3. Corrupt the using 'mangle' 4. mount -t btrfs -o loop 5. # btrfs-debug-tree Couldn't map the block 3221392384 Couldn't read chunk root unable to open # btrfs-debug-tree /dev/loop0 Couldn't map the block 3221392384 Couldn't read chunk root unable to open /dev/loop0 Regards, R.Nageswara Sastry