process no exit at exit()

Bug report:

Multithreaded programs don't exit on exit(). For example, test programs 
test_str01 and test_str03 don't exit after calling exit(). 
Test program test_str02 does exit, it uses pthread_exit().
The 'hanging' process can be killed with a signal.
It only occurs on SMP, not on uni-processor, so I can't debug it.

aj
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gcc: 2.95.3
NGPT: 2.0.1, default config
LX: 2.4.19 SMP (dual athlon)