new kernel resets system - "solution"

[Kurt Schreiner <ks%ub.uni-mainz.de@localhost>]

Hi,

reverting 

 sys/kern/kern_mutex.c
 sys/kern/kern_rwlock.c
 sys/sys/mutex.h
 sys/sys/rwlock.h

to yesterday's versions yields a working kernel again.
(at least on i386...)

Kurt