atMost in GHC.Event.PSQ causes seqfault or bus error

Ian Lynagh ian at well-typed.com
Fri May 31 16:30:10 CEST 2013


Hi Kazu,

On Fri, May 31, 2013 at 03:16:22PM +0900, Kazu Yamamoto wrote:
> 
> After a long fight, I found that this is a bug of the "-O2" option of
> GHC head on 32bit machine. Now, it is easy to reproduce this
> segfault. Please read and try this:
> 
> 	https://github.com/kazu-yamamoto/buggy-psq

Great, thanks for your work in boiling this down! I've filed a ticket
for it here:
    http://hackage.haskell.org/trac/ghc/ticket/7953


Thanks
Ian
-- 
Ian Lynagh, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/



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