Re: kill task in TASK_UNINTERRUPTIBLE

[Jan Hudec]

On Thu, May 09, 2002 at 01:49:35AM +0200, Roman Zippel wrote:
> > > Except for processes accessing NFS files while the NFS server is down:
> > > they will be stuck in TASK_UNINTERRUPTIBLE until the NFS server comes
> > > back up again.
> > 
> > A REALLY good argument for puting timeouts on your NSF mounts!  Don't
> > leave home without them.
> 
> Use "mount -o intr" and you can kill the process.

Could someone please explain to me how this works? IIRC NFS uses
generic_file_read as most other filesystems. And whe WaitOnPage in there
sleeps in uninterruptible state. I was told, that though it would be
easy to change here, it's almost impossible in page-fault, because
trying to handle a signal might trigger the very same page-fault again.

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                  				- Jan Hudec `Bulb' <[e-mail]>