how to kill Uninterruptible process

From: Ellen Davis <daviser_at_email.uc.edu>
Date: Wed, 30 Jul 1997 13:40:50 -0400

How do I kill a process that is in an Uninterruptible sleeping state?
I have tried kill -KILL 639, but it does nothing.


# ps -l
       F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY
  TIME CMD
80808001 U 0 639 1 0.0 63 0 0 128K b88680 ttyp1
   0:00.01 umount


 Ellen Davis
 Ellen.Davis_at_uc.edu
Received on Wed Jul 30 1997 - 19:47:55 NZST