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SubjectRe: Disk errors and Reiserfs
> My issue, though, is Linux did not handle it well.  Userspace actually has 
> an 'EIO' error code for this situation but, instead, any program touching
> the mounted partition hung in a D state.

Thats a reiserfs property and one you'll find in pretty much any other

> Is it possible for the kernel to handle this with enough grace that you
> can kill the processes and unmount the partition? (Thus allowing the box
> to continue in a hobbled, but function manner.) Failing that, is it
> possible for the kernel to handle it well enough for 'shutdown' to cleanly
> shutdown the box?

Killing the process isnt neccessary, its been halted in its tracks. As to
a clean shutdown - no chance. You've just hit a disk failure, the on disk
state is not precisely known, writes have been lost. Nothing is going to
make a clean shutdown possible under such circumstances.

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