Unkillable KSE threaded proc

[Andrew Gallatin]

Julian Elischer writes:
 > >
 > >Maybe this would be easier to debug if I disabled preemption?
 > >
 > 
 > 
 > I think that this would possibly GO AWAY of you disab;ed preemption. 
 > which would make it very hard to debug :-)
 > 

Yes and no.  You initially asked me to try in -current because of
some changes you'd made to the exit code.  RELENG_5 (with the old
exit code and no preemption) shows a different problem (proc is
just not killable).    If the proc was killable without preemption,
that would at least show your new code is better..

Drew