I've been getting some strange disk/filesystem errors on one of my systems today that just do no make any sense to me.

The system is running RH 6.0, and here's a few lines of the syslog.

Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36519
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36521
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36523
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36526
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36534
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36534
Feb  8 20:28:21 barney kernel: EXT2-fs warning (device sd(8,53)): ext2_free_blocks: bit already cleared for block 36737

First of all, what does this mean???  Second, what is "sd(8,53)?  Obviously I'm getting some kind of warning on one of my SCSI drives.  I'd like to know how to tell which one.  8,53 makes no sense.  I don't have a drive that's ID #8, and ID 53, well, we all know that's not possible at this point except for fibrechannel disks, and I don't have those.

Is there someone out there that has seen this kind of stuff before?

Thanks,
Paul C.
 

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