linux-ext4 - Re: Severe data corruption with ext4

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 23 Mar 2009 15:20:03 +0100
From:	Richard Höchenberger <richard@...elected.de>
To:	Theodore Tso <tytso@....edu>, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org
Subject: Re: Severe data corruption with ext4

Hi Ted, I just compiled and installed 2.6.29-rc8 vanilla. Before
running it, I booted from a live CD and fsck'd all my file systems to
get them into a consistent, clean state.

Now, after booting 2.6.29-rc8 and writing stuff to dm-14 (/usr), I again get:

----------
Mar 23 15:01:02 bakunin kernel: __find_get_block_slow() failed.
block=135274289954816, b_blocknr=0
Mar 23 15:01:02 bakunin kernel: b_state=0x00310021, b_size=4096
Mar 23 15:01:02 bakunin kernel: device blocksize: 4096
Mar 23 15:01:02 bakunin kernel: __find_get_block_slow() failed.
block=135274289954816, b_blocknr=0
Mar 23 15:01:02 bakunin kernel: b_state=0x00310021, b_size=4096
Mar 23 15:01:02 bakunin kernel: device blocksize: 4096
Mar 23 15:01:02 bakunin kernel: grow_buffers: requested out-of-range
block 135274289954816 for device dm-14
Mar 23 15:01:02 bakunin kernel: EXT4-fs error (device dm-14):
ext4_xattr_delete_inode: inode 4501: block 135274289954816 read error
----------

(the same for other inodes as well)

I've again attached the output of dumpe2fs (maybe something has
changed in the meantime..?) and an image of inode 4501.

    Richard

Download attachment "itable_dm-14_usr-1.img" of type "application/octet-stream" (4096 bytes)

Download attachment "dumpe2fs_dm-14_usr-1.txt.gz" of type "application/x-gzip" (30141 bytes)