2000-12-06 22:21:22

by mkloppstech

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Subject: Ext2-fs error

The EXT2-fs errors I recently reported for test11 seem to be gone with
test12-pre5. At least I couldn't reproduce the error, neither with
overcommit_memory turned on nor off; maybe the error was due to
turning on write cache of my hard disk.

The error was a wrong reading of directory lengths and inode nnumbers:
The file system seemed to read the inode numbers not as supposed to do:
xxxx|xxxx|xxxx|xxxx|xxxx
rrrr

but like this:
xxxx|xxxx|xxxx|xxxx|xxxx
rrr_r
The message was:

Dec 4 13:04:19 john kernel: EXT2-fs error (device ide0(3,3)): ext2_readdir: bad entry in directory #280596: rec_len % 4 != 0 - offset=0, inode=68583844, rec_len=13758, name_len=0
Dec 4 15:38:07 john kernel: EXT2-fs error (device ide0(3,3)): ext2_readdir: bad entry in directory #280596: rec_len % 4 != 0 - offset=0, inode=33188, rec_len=3591, name_len=0
Dec 4 15:38:07 john kernel: EXT2-fs error (device ide0(3,3)): ext2_readdir: bad entry in directory #659481: directory entry across
blocks - offset=0, inode=33188, rec_len=2536, name_len=0
Dec 4 15:39:38 john kernel: EXT2-fs error (device ide0(3,3)): ext2_readdir: bad entry in directory #280596: rec_len % 4 != 0 - offset=0, inode=33188, rec_len=3591, name_len=0
Dec 4 15:39:38 john kernel: EXT2-fs error (device ide0(3,3)): ext2_readdir: bad entry in directory #659481: directory entry across
blocks - offset=0, inode=33188, rec_len=2536, name_len=0

Mirko Kloppstech