From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 08 May 2007 03:00:09 -0700 (PDT) Received: from atlas.informatik.uni-freiburg.de (atlas.informatik.uni-freiburg.de [132.230.150.3]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id l48A00fB010168 for ; Tue, 8 May 2007 03:00:01 -0700 Received: from login.informatik.uni-freiburg.de ([132.230.151.6]) by atlas.informatik.uni-freiburg.de with esmtps (TLSv1:DES-CBC3-SHA:168) (Exim 4.66) (envelope-from ) id 1HlLns-00067j-VF for xfs@oss.sgi.com; Tue, 08 May 2007 11:16:17 +0200 Received: from login.informatik.uni-freiburg.de (localhost [127.0.0.1]) by login.informatik.uni-freiburg.de (8.13.8+Sun/8.12.11) with ESMTP id l489GFYW008121 for ; Tue, 8 May 2007 11:16:15 +0200 (MEST) Received: (from zeisberg@localhost) by login.informatik.uni-freiburg.de (8.13.8+Sun/8.12.11/Submit) id l489GEui008120 for xfs@oss.sgi.com; Tue, 8 May 2007 11:16:14 +0200 (MEST) Date: Tue, 8 May 2007 11:16:14 +0200 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Subject: Problems with XFS in a power failure Message-ID: <20070508091613.GA5852@cepheus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: xfs@oss.sgi.com Hello, my machine suffered a power failure while doing a apt-get upgrade. This damaged several files. E.g. root@cepheus:~# xxd /var/lib/dpkg/info/myspell-en-us.postrm 0000000: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0000010: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0000030: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 0000040: 0000 0000 0000 0000 0000 0000 0000 .............. while the repaired file has a size of 78 (= 0x4e) bytes. Some other files got broken with random data. I checked with debsums -c and it reported: root@cepheus:~# debsums -c >=������2[j�b��nw�������� in md5sums for irssi-scripts: ����gV{ڛ� �N���L���Mg{����.�����`����ӈL���j$�kC1'� ��S� ���ݏ�� debsums: invalid line (2) in md5sums for irssi-scripts: ����g�DPH�� 숐���}�]g�����N�ci�5�h �w�W{SZ��q��F_�sR�[���ie�A|��Sv��@�@��;�5�'#c��$��l%���� ��T���$�!d�B�y debsums: invalid line (3) in md5sums for irssi-scripts: �����-ċE��yq�/7đ>�������Ў������Vu����V �+ɋA�f��:%O��_l���}������}� ��1���ȴϘ��=?��&��������F���mT�trZ� ���1���enO%.�YN��=�k��@����\{8ɔw�x����z��-P!g�j����QV9u������)�m���5�l�8l �Rk5�;M���R��� �fx��O gѝ��;����٠�HYfrc��9�����u�q���Ox߀`����~_�ƃ2"J;�Q$vl?�{�=V������ �[��\�d��n�!�UH��Y�D��j2I���*� [�c��G�������[��h*���������2A��m&����������ޥGЉ�;R�0��̦��� ... I don't know exactly, but I think the damaged file here was /var/lib/dpkg/info/irssi.md5sums and debsums repaired it!? In theory this should not happen with a journaled fs, does it? This is a 2.6.19.3 kernel, unfortunately tainted by madwifi. There was nothing logged in dmesg and/or syslog. root@cepheus:~# xfs_info /var meta-data=/dev/hda9 isize=256 agcount=8, agsize=91619 blks = sectsz=512 attr=0 data = bsize=4096 blocks=732952, imaxpct=25 = sunit=0 swidth=0 blks, unwritten=1 naming =version 2 bsize=4096 log =internal bsize=4096 blocks=2560, version=1 = sectsz=512 sunit=0 blks realtime =none extsz=65536 blocks=0, rtextents=0 I have to shutdown that machine because of a power cut by my supplier, but probably I will use a boot cd to bring it up again ... Best regards Uwe -- Uwe Kleine-König http://www.google.com/search?q=1+degree+celsius+in+kelvin