On Sat, 04 Apr 1998 20:33:03 -0000 (GMT) 
 jiho@postal.c-zone.net wrote:

 > Ah, but that sharing was made possible by moving the USPACE allocation out of
 > the vmspace.

Uh, the U-area has never been part of the vmspace.  (At least, that I can
remember...)

 > The point in the above was, cpu_wait() being a null #define in the i386 port's
 > <machine/cpu.h> doesn't matter, because that isn't where the USPACE stuff is
 > deallocated anyway.  So the deallocation _is_ being done, contrary to what I had
 > previously thought.

Right... cpu_wait() couldnt' possibly be where that happens, since it would
unmap the kernel stack before the exit was finished.

The code path that leads to the U-area being freed is via cpu_exit().

Jason R. Thorpe                                       thorpej@nas.nasa.gov
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