From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:39256 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753326Ab3ELQGZ (ORCPT ); Sun, 12 May 2013 12:06:25 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1UbYn1-00084W-KR for linux-btrfs@vger.kernel.org; Sun, 12 May 2013 18:06:23 +0200 Received: from dyndsl-080-228-181-166.ewe-ip-backbone.de ([80.228.181.166]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 12 May 2013 18:06:23 +0200 Received: from hurikhan77+btrfs by dyndsl-080-228-181-166.ewe-ip-backbone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 12 May 2013 18:06:23 +0200 To: linux-btrfs@vger.kernel.org From: Kai Krakow Subject: Re: Is my btrfs filesystem definitely dead? Date: Sun, 12 May 2013 18:02:30 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org List-ID: Ross schrieb: > Sébastien Luttringer seblu.net> writes: > >> >> Hello, after a crash with linux 3.8.0, I'm unable to > mount my btrfs root >> filesystem. I tried with a archlinux rescue cd with a > linux 3.7.5, but I >> got the following errors: >> >> First trying to fix the fs: >> >> # btrfsck >> usage: btrfsck dev >> Btrfs v0.20-rc1 >> # btrfsck /dev/sdd2 >> checking extents >> checking fs roots >> checking root refs >> [1] 1051 segmentation fault (core dumped) btrfsck > /dev/sdd2 >> # dmesg|grep 1051 >> [ 956.804097] btrfsck[1051]: segfault at 7f563c319410 > ip >> 00007f56307c4c25 sp 00007ffffa7fbdf0 error 4 in >> libc-2.17.so[7f563074a000+1a4000] >> >> Trying to mount the FS i got a OOPS. >> # mount /dev/sdd2 /new_root >> [ 60.602232] device label bitumefs devid 1 transid > 40042 /dev/sdd2 >> [ 60.603629] btrfs: disk space caching is enabled >> [ 60.615642] Btrfs detected SSD devices, enabling > SSD mode >> [ 60.769651] ------------[ cut here ]------------ >> [ 60.769709] kernel BUG at fs/btrfs/free-space- > cache.c:1553! [snip] Tried to clear the space cache during mounting? There's a mount option for it but currently do not remember it. HTH, Kai