From: utzoo!decvax!harpo!npoiv!alice!research!rob
Newsgroups: net.unix-wizards
Title: xxx
Article-I.D.: research.277
Posted: Tue Aug  3 16:33:44 1982
Received: Wed Aug  4 03:28:39 1982

there is a bug in the version 7 and derivative user-level sleep routines.
because the structure `jmp' is static, recursive calls to sleep,
which can occur if, for example, a signal occurs during a sleep,
will behave erroneously.  in my case, sleep went into an infinite
loop.  my fix was to not call sleep recursively, but others may
care enough to come up with a fix.