Trying to kill a process that just won't die...

[Dave Goldblatt]

Gregory Gulik wrote:

>
> F S   UID   PID  PPID  C PRI  NI ADDR    SZ WCHAN  TTY          TIME CMD
> 1 D     0 11952     1  0  80   2    -  1341 wait_o ?        00:00:00 gtar

That's what I suspected - the app is in an I/O wait (technically, 
"uninterruptible sleep").  Usually this is due to an NFS hang, although 
it can be caused by other media which has wedged but not timed out.  One 
trick which sometimes works is to unmount the mount point it's stuck 
on.. if that doesn't work you're pretty much stuck.

You can try to force an unmount of a non-responsive NFS server by using 
the -f option for umount (and optionally add the -l option).

-dg-