>To raise the current process's limit:
>hubba:riz  ~> sysctl -w proc.curproc.rlimit.maxproc.soft=600
>proc.curproc.rlimit.maxproc.soft: 160 -> 600
>
>hubba:riz  ~> sysctl -a |grep maxproc
>kern.maxproc = 1044
>proc.curproc.rlimit.maxproc.soft = 160
>proc.curproc.rlimit.maxproc.hard = 1044

note that in this context, maxproc.soft did *not* rise to 600 because
you told sysctl to raise it's *own* limit to 600.  sysctl subsequently
exited, so it never noticed the difference.

you might wanna try instead

	sysctl -w proc.$$.rlimit.maxproc.soft=600

so that the shell's limit gets changed instead.

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