[GHC] #15715: problematic openFile with named pipes

[GHC]

#15715: problematic openFile with named pipes
-------------------------------------+-------------------------------------
           Reporter:  adp            |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:                 |           Version:  8.4.3
  libraries/base                     |
           Keywords:                 |  Operating System:  Linux
       Architecture:  x86_64         |   Type of failure:  Incorrect result
  (amd64)                            |  at runtime
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 - while `openFile`'ng named pipes for `ReadMode` works fine, on
 `WriteMode` or `AppendMode` it throws `openFile: does not exist (No such
 device or address)`; and on `WriteReadMode`, it opens it, but seem not
 able to write to it (the process hearing on the other side didn't hear
 anything).

 - `writeFile` and `appendFile` works though.

 - using stack `resolver: lts-12.4`, on ubuntu 16.04 LTS

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15715>
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