[GHC] #11508: QuickCheck application hangs with concurrent read/write of Chan

[GHC]

#11508: QuickCheck application hangs with concurrent read/write of Chan
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        Reporter:  orion             |                Owner:
            Type:  bug               |               Status:  infoneeded
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
                                     |  (amd64)
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by orion):

 I just reproduced this on FreeBSD. What follows is the output from cabal
 freeze --enable-tests:


 {{{
 constraints: QuickCheck ==2.8.2,
              ansi-terminal ==0.6.2.3,
              ansi-wl-pprint ==0.6.7.3,
              array ==0.5.1.0,
              async ==2.1.0,
              base ==4.8.2.0,
              binary ==0.7.5.0,
              bytestring ==0.10.6.0,
              clock ==0.6.0.1,
              containers ==0.5.6.2,
              deepseq ==1.4.1.1,
              directory ==1.2.2.0,
              filepath ==1.4.0.0,
              ghc-prim ==0.4.0.0,
              integer-gmp ==1.0.0.0,
              mtl ==2.2.1,
              optparse-applicative ==0.12.1.0,
              parsec ==3.1.9,
              pretty ==1.1.2.0,
              primitive ==0.6.1.0,
              process ==1.2.3.0,
              random ==1.1,
              regex-base ==0.93.2,
              regex-tdfa-rc ==1.1.8.3,
              rts ==1.0,
              stm ==2.4.4.1,
              tagged ==0.8.3,
              tasty ==0.11.0.2,
              tasty-quickcheck ==0.8.4,
              template-haskell ==2.10.0.0,
              text ==1.2.2.1,
              tf-random ==0.5,
              time ==1.5.0.1,
              transformers ==0.4.2.0,
              transformers-compat ==0.5.1.4,
              unbounded-delays ==0.1.0.9,
              unix ==2.7.1.0
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11508#comment:9>
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