[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 erikd):

 I just tried this on x86_64 Debian with ghc-7.10.3 (installed from Debian)
 and it seems to run fine. At the end I get

 {{{
 2
 1
 1
 OK (10.16s)
       +++ OK, passed 100 tests.

 All 2 tests passed (20.32s)
 }}}

 Tried three runs without a single hang.

 Debian applies a couple of patches to the official GHC 7.10.3 tarball.
 Those patches are in the file http://ftp.debian-
 ports.org/debian/pool/main/g/ghc/ghc_7.10.3-7.debian.tar.xz . I've had a
 brief look at those patches, but none of them seem relevant to this issue.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11508#comment:8>
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