[SLUG] Killing *really* dead proccess.

["Steven downing" <steven.downing@xxxxxxxx>]

Hi all.
My cd-rom is a bit dodgy and old, so sometimes when it is reading off the drive Linux throws up its hands and sends a hardware reset to the unit.
Last night but when I tried to mount it in Gnome something bad happened and the mount process froze.  Anyway X went a bit wobbly so I quit out, and checked what was running.
Gmc(or one of those long-named-gnome-processes) and the mount command were still running but niether were zombied.
Kill and Kill -9 didn't work on either of them, niether did Kill -Stop (or sigstop, whatever). I tried as my user and as root.
So finally my question is, is there a way to kill something which isn't responding to those signals. And zombies?