Re: Proposal #3537: Add missing NFData instances to parallel

what's wrong with

instance NFData (Data.IORef.IORef a) where    rnf r = r `seq` ()

Ah, you are right. I was being to clever for my own good :-) Perhaps it works for all types where I used the "rnf x = rnf (x == x)" trick. Should I attach a new patch to the ticket with those definitions changed?