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    Subject2.4.2-pre2 ext2fs corruption
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    i came in today to find the computer completely locked up. after
    rebooting and waiting for about an hour for fsck to finish i found the
    following errors in the system log:

    Feb 13 06:25:18 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #11: rec_len %% 4 != 0 - offset=0, inode=1179403647, rec_len=257, name_len=1
    Feb 13 06:25:18 caliban kernel: init_special_inode: bogus imode (34503)
    Feb 13 06:25:18 caliban kernel: init_special_inode: bogus imode (30060)
    Feb 13 06:25:18 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #1170: directory entry across blocks - offset=0, inode=842214441, rec_len=11312, name_len=51
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (52073)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (35144)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (71563)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (51117)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (72141)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (52101)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (36451)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (54522)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (30067)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (57505)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (31454)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (71145)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (74105)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (34063)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (51520)
    Feb 13 06:25:19 caliban kernel: init_special_inode: bogus imode (72151)
    Feb 13 06:25:19 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #16292: rec_len %% 4 != 0 - offset=0, inode=741488945, rec_len=12851, name_len=59
    Feb 13 06:25:19 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #16293: rec_len %% 4 != 0 - offset=0, inode=740898354, rec_len=12337, name_len=56

    [more of the same deleted]

    Feb 13 06:26:23 caliban kernel: init_special_inode: bogus imode (44)
    Feb 13 06:26:23 caliban kernel: init_special_inode: bogus imode (104)
    Feb 13 06:26:23 caliban kernel: init_special_inode: bogus imode (3)
    Feb 13 06:26:23 caliban kernel: init_special_inode: bogus imode (52731)
    Feb 13 06:26:23 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #679: rec_len %% 4 != 0 - offset=0, inode=842214450, rec_len=18235, name_len=101
    Feb 13 06:26:23 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #827280: rec_len %% 4 != 0 - offset=0, inode=25203, rec_len=25206, name_len=0
    Feb 13 06:26:24 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_readdir: bad entry in directory #822: rec_len is too small for name_len - offset=0, inode=32419, rec_len=128, name_len=235

    [more of the same deleted]

    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_inode: bit already cleared for inode 18434
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks in system zones - Block = 130, count = 1
    Feb 13 06:28:31 caliban kernel: fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 925969465, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 675096887, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 824981816, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 1026111543, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 959981610, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 892809516, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 1347158057, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 977752909, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 959981684, count = 1
    Feb 13 06:28:31 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 959918380, count = 1


    [more deleted]

    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks in system zones - Block = 128, count = 1
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: bit already cleared for block 128
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 152502400, count = 1
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 152502400, count = 1
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks in system zones - Block = 128, count = 1
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: bit already cleared for block 128
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=611844612, limit=7116795
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=152961152
    Feb 13 06:28:48 caliban kernel: evice sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=579451439
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=1163009752, limit=7116795
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=-782989387
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=1718049480, limit=7116795
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=-1181100367
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=310652652, limit=7116795
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=1151404986
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=874643024, limit=7116795
    Feb 13 06:28:48 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18575, block=1829273491
    Feb 13 06:28:48 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:48 caliban kernel: 08:03: rw=0, want=1118405292, limit=7116795

    [more deleted]

    Feb 13 06:28:48 caliban kernel: Kernel panic: EXT2-fs panic (device sd(8,3)): load_block_bitmap: block_group >= groups_count - block_group = 131071, groups_count = 55
    Feb 13 06:28:48 caliban kernel:
    Feb 13 06:28:50 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 171442304, count = 1
    Feb 13 06:28:50 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks not in datazone - block = 171442304, count = 1
    Feb 13 06:28:50 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_blocks: Freeing blocks in system zones - Block = 128, count = 1

    [more deleted]

    Feb 13 06:28:50 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:50 caliban kernel: 08:03: rw=0, want=691798532, limit=7116795
    Feb 13 06:28:50 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18578, block=172949632
    Feb 13 06:28:51 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:51 caliban kernel: 08:03: rw=0, want=617404596, limit=7116795
    Feb 13 06:28:51 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18578, block=691222060
    Feb 13 06:28:51 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:51 caliban kernel: 08:03: rw=0, want=557922308, limit=7116795
    Feb 13 06:28:51 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18578, block=1213222400
    Feb 13 06:28:51 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:51 caliban kernel: 08:03: rw=0, want=1489308948, limit=7116795
    Feb 13 06:28:51 caliban kernel: EXT2-fs error (device sd(8,3)): ext2_free_branches: Read failure, inode=18578, block=909198148
    Feb 13 06:28:51 caliban kernel: attempt to access beyond end of device
    Feb 13 06:28:51 caliban kernel: 08:03: rw=0, want=1419890924, limit=7116795

    and on and on, about 4000 lines or so. the computer is back up but the
    file system is really messed up, with most files containing parts of
    other files. is this a known problem? has it been fixed? if somebody
    finds it useful i can make the whole log available on my web site.
    right now i am running 2.4.2-pre3 but i am thinking of going back to
    2.2.18.

    --alex--

    --
    | I believe the moment is at hand when, by a paranoiac and active |
    | advance of the mind, it will be possible (simultaneously with |
    | automatism and other passive states) to systematize confusion |
    | and thus to help to discredit completely the world of reality. |
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