Very Computer

Hi Gurus,
(TrueUnix4.0F question)
Submitted jobs go to Uninterruptible sleeping process. vmstate shows 98%
idle.
(The system was working fine before). What's wrong and how to make those
jobs
running properly?
Thanks
Tapas

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"We owe a lot to the Indians, who taught us how to count, without
which no worthwhile scientific discovery could have been made."
                                           - Albert Einstein -
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Tapas Kar, Ph. D
Department of Chemistry & Biochemistry
Utah State University
Logan, UT 84322-0300

Tel: 435-797-7230
Fax: 435-797-3390

Before what?  What changed since it was working correctly.

Quote:>What's wrong and how to make those jobs running properly?

The processes are waiting on some resource that isn't
available.  For whatever reason the driver or kernel
code for the particular resource doesn't want the
process to be able to interrupt the wait, probably
because it complicates cleaning up if the resource
ever does become avaialble.

The typical resource is I/O, sometimes due to a NFS
server being down and the particular NFS file system
being hard mounted.  There is an NFS option to make
the waits interruptable, but I don't know if it is
the default.

Using the ps(1) with the 'l' option (not -l), might offer
a clue since this will print the wait channel.  If the
command, it will translate the address to the more meaningful
name.

Quote:>Thanks
>Tapas

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