On linux-2.6.22.1, executing the following script
while the mailer is writing to /var/spool/mail/linux-os.....
#!/bin/bash
while true ;
do
>/var/spool/mail/linux-os;
sleep 1;
done
...will cause the following errors to occur.
Dec 7 04:05:55 chaos kernel: sd 0:0:1:0: [sdb] Sense Key : No Sense [deferred]
Dec 7 04:05:55 chaos kernel: Info fld=0x1980240
Dec 7 04:05:55 chaos kernel: sd 0:0:1:0: [sdb] Add. Sense: Peripheral device
write fault
Dec 7 04:08:13 chaos kernel: attempt to access beyond end of device
Dec 7 04:08:13 chaos kernel: sdb1: rw=0, want=29687515944, limit=33736437
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1):
ext2_xattr_delete_inode: inode 656387: block -584027804 read error
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 3710940964, count = 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 4294967295, count = 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 4294967295, count = 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 3710940980, count = 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 3710940980, count = 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
bit already cleared for block 1
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_blocks:
Freeing blocks not in datazone - block = 3710941012, count = 1
Dec 7 04:08:13 chaos kernel: attempt to access beyond end of device
Dec 7 04:08:13 chaos kernel: sdb1: rw=0, want=29687528104, limit=33736437
Dec 7 04:08:13 chaos kernel: EXT2-fs error (device sdb1): ext2_free_branches:
Read failure, inode=656399, block=-584026284
Dec 7 04:08:13 chaos kernel: attempt to access beyond end of device
Dec 7 04:08:13 chaos kernel: sdb1: rw=0, want=29687529288, limit=33736437
Dec 7 04:08:15 chaos kernel: EXT2-fs error (device sdb1):
ext2_xattr_delete_inode: inode 656400: block -584026136 read error
Dec 7 04:08:18 chaos kernel: EXT2-fs error (device sdb1):
ext2_xattr_delete_inode: inode 656403: bad block 30188
Caution is advised when testing because this destroyed a filesystem,
making it unfixable by `fsck`.
Cheers,
Dick Johnson
Penguin : Linux version 2.6.22.1 on an i686 machine (5588.29 BogoMips).
My book : http://www.AbominableFirebug.com/
_
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