sleep writearound/system call

[utzoo!decvax!ucbvax!unix-wizards]

>From JNC at MIT-XX Wed Nov 11 11:42:32 1981
	Does anyone know why the writearound for sleep no longer
references the sleep system call but uses alarm and pause instead?  We
just found a bug (in a case where the time period was small, one
second in this case) where the alarm appeared to have happened before
the pause call (probably due to the process getting scheduled out),
causing the process to hang forever. Que pasa?
		Noel
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