Some processes stay active after killing its PID

[Jeremy Chadwick]

On Tue, Nov 27, 2007 at 01:05:21PM +0100, Honza Holakovsky wrote:
> Thanks for reply,
> 
> I tried to kill the process via all possibilities described in man kill :)
> But I didn't know there are some processes which can't be killed, so I tried
> again running wdfs, but after "ps -xacu | grep wdfs" I see
> 
> USER      PID %CPU %MEM   VSZ   RSS  TT  STAT STARTED      TIME COMMAND
> root      971 73,9  0,9 19048  5552  ??  Rs    1:03od   0:15,36 wdfs
> 
> no D state :(
> I'm quite confused, because in state, I have to reboor every time I umount
> wdfs drive :(

Is it possible to truss or ktrace that process?  It would be interesting
to know what it's doing (re: chewing up 74% CPU).

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |