Re: buffer i/o error

From: Stefan Richter
Date: Wed Dec 03 2008 - 11:53:18 EST

Andrej Hocevar wrote:
> Hello, I suddenly realized that one of my external disks (a Western Digital
> MyBook usb disk) wasn't accessible anymore. Then I found the following message.
> There seems to have been no apparent damage or loss, but I'm reporting it
> anyway.
> Regards,
> Andrej Hocevar
> ------------[ cut here ]------------
> WARNING: at fs/buffer.c:1186 mark_buffer_dirty+0x20/0x69()
> [<c016fe20>] mark_buffer_dirty+0x20/0x69
> [<c0198b88>] journal_update_superblock+0x4a/0x7c
> [<c0198e00>] journal_destroy+0x101/0x146
> [<c0126742>] autoremove_wake_function+0x0/0x2d
> [<c018fcfd>] ext3_put_super+0x1f/0x147
> [<c01578a6>] generic_shutdown_super+0x4a/0xad
> [<c0157915>] kill_block_super+0xc/0x1b

This warning typically happens when the connection to a disk was lost.
Alas it doesn't tell /why/ the connection was lost. has
more of this sort.
Stefan Richter
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