Messages in this thread |  | | From | Keith Owens <> | Subject | Corrupt ext2/ext3 directory entries not recovered by e2fsck | Date | Sat, 13 Oct 2001 22:44:34 +1000 |
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IA64, gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-95). Various kernels from 2.4.9 (with ext3) through 2.4.13-pre1 (with XFS).
The filesystem was created as ext3 but is currently being accessed as ext2 while I work on XFS and kdb for IA64. After multiple power rests, several directory entries are corrupt. Attempts to access the files get I/O error with nothing in the log. Running e2fsck does not correct the broken directory entry, neither does booting a kernel that supports ext3.
I am surprised that neither ext3 recovery nor e2fsck detected the broken directory entries. Before I clri the directory entry, does anybody want more details?
debugfs: ls -l /var/run 686849 40755 0 0 4096 13-Oct-2001 21:41 . 179873 40755 0 0 4096 25-Sep-2001 11:39 .. 507431 40775 0 0 4096 27-Jul-2001 07:32 netreport 686888 100664 0 22 4800 13-Oct-2001 21:45 utmp 376417 40755 75 75 4096 9-Jul-2001 21:40 radvd 654934 40700 0 0 4096 24-Jul-2001 02:52 sudo 686995 100644 0 0 11 13-Oct-2001 21:41 runlevel.dir 687119 100600 0 0 4 13-Oct-2001 21:41 syslogd.pid 687120 100600 0 0 4 13-Oct-2001 21:41 klogd.pid 688413 100644 0 0 4 13-Oct-2001 21:41 sshd.pid 688414 100644 0 0 4 13-Oct-2001 21:41 xinetd.pid 2133571369 --- error --- sendmail.pid 2133571369 --- error --- crond.pid 2133571369 --- error --- xfs.pid 2133571369 --- error --- atd.pid
Dump of the directory.
0000 01 7B 0A 00 0C 00 01 02 2E 00 00 00 A1 BE 02 00 * .{..........¡... * 0010 0C 00 02 02 2E 2E 00 00 27 BE 07 00 14 00 09 02 * ........'....... * 0020 6E 65 74 72 65 70 6F 72 74 00 00 00 28 7B 0A 00 * netreport...({.. * 0030 0C 00 04 01 75 74 6D 70 61 BE 05 00 10 00 05 02 * ....utmpa....... * 0040 72 61 64 76 64 00 00 00 56 FE 09 00 0C 00 04 02 * radvd...V....... * 0050 73 75 64 6F 93 7B 0A 00 14 00 0C 01 72 75 6E 6C * sudo.{......runl * 0060 65 76 65 6C 2E 64 69 72 0F 7C 0A 00 14 00 0B 01 * evel.dir.|...... * 0070 73 79 73 6C 6F 67 64 2E 70 69 64 00 10 7C 0A 00 * syslogd.pid..|.. * 0080 14 00 09 01 6B 6C 6F 67 64 2E 70 69 64 00 00 00 * ....klogd.pid... * 0090 1D 81 0A 00 10 00 08 01 73 73 68 64 2E 70 69 64 * ........sshd.pid * 00a0 1E 81 0A 00 14 00 0A 01 78 69 6E 65 74 64 2E 70 * ........xinetd.p * 00b0 69 64 00 00 00 00 00 00 14 00 0C 01 73 65 6E 64 * id..........send * 00c0 6D 61 69 6C 2E 70 69 64 00 00 00 00 14 00 09 01 * mail.pid........ * 00d0 63 72 6F 6E 64 2E 70 69 64 00 00 00 00 00 00 00 * crond.pid....... * 00e0 10 00 07 01 78 66 73 2E 70 69 64 00 00 00 00 00 * ....xfs.pid..... * 00f0 14 0F 07 01 61 74 64 2E 70 69 64 00 00 00 00 00 * ....atd.pid..... * 0100 04 0F 0C 01 73 68 75 74 64 6F 77 6E 2E 70 69 64 * ....shutdown.pid * 0110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * ................ *
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