[GHC] #11180: A program writing to a read-only stdout should not succeed

[GHC]

#11180: A program writing to a read-only stdout should not succeed
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        Reporter:  thomie            |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Indeed this is quite unexpected. I believe the relevant code it is
 `libraries/base/GHC/IO/FD.hs:writeRawBufferPtrNoBlock`. Judging by the
 code it ought to be throwing an exception. I'm not yet sure why it is not.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11180#comment:1>
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