[GHC] #10173: Panic: Irrefutable pattern failed for pattern Data.Maybe.Just

[GHC]

#10173: Panic: Irrefutable pattern failed for pattern Data.Maybe.Just
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        Reporter:  mietek              |                Owner:
            Type:  bug                 |               Status:  new
        Priority:  normal              |            Milestone:
       Component:  Compiler            |              Version:  7.8.4
      Resolution:                      |             Keywords:
Operating System:  Linux               |         Architecture:  x86
 Type of failure:  Compile-time crash  |            Test Case:
      Blocked By:                      |             Blocking:
 Related Tickets:                      |  Differential Rev(s):
       Wiki Page:                      |
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Comment (by thomie):

 I can not reproduce this bug with `ghc-7.8.4:i386` from
 https://launchpad.net/~hvr/+archive/ubuntu/ghc, installed on x86_64 Ubuntu
 14.04.
 {{{
 .cabal-sandbox/i386-linux-ghc-7.8.4-packages.conf.d
    attoparsec-0.12.1.2
    hashable-1.2.3.3
    primitive-0.6.1.0
    scientific-0.3.4.2
    text-1.2.1.3
    vector-0.11.0.0
 }}}

 @mietek: are you still able to reproduce this? Which versions of the
 dependencies did cabal install for you? Any special cabal settings you are
 using?

 Perhaps I should really test this on a 32-bit system.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10173#comment:1>
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