[Rd] multicore mclapply hangs

[Rune Schjellerup Philosof]

When I execute mclapply it creates the needed processes, but these
processes never begin computing anything, they just wait indefinitely.
I recently upgraded to version 2.9.1, which might have caused the problem.

-- 
Med venlig hilsen
Rune Schjellerup Philosof
Ph.d.-studerende, Statistik, IST, SDU

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