On Sun, Aug 03, 2003 at 09:42:10AM +0200, Harald Dunkel wrote:
> Hi folks,
> 
> I run into a kernel panic if I shutdown my PC without
> manually unmounting my external USB disk first. It said
> 
>       unmounting local filesystems... bio too big device sdc1 (8 > 0)
>       bio too big device sdc1 (8 > 0)
>       journal - 601, buffer write failed
>       --- cut here ---
>       kernel BUG at fs/reiserfs/prints.c: 339
>       :

This is a reiserfs bug, not a usb storage bug.  See the linux-kernel
mailing list for a discussion of it.

> Would it be possible to add some automagic code to
> enforce unmounting the USB storage devices before
> the USB bus is shutdown?

Sure, just modify your shutdown scripts to do this, it's not a kernel
issue :)

thanks,

greg k-h


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