[GHC] #13945: 'ghc-pkg update' fails due to bad file descriptor error

[GHC]

#13945: 'ghc-pkg update' fails due to bad file descriptor error
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        Reporter:  mpickering    |                Owner:  bgamari
            Type:  bug           |               Status:  new
        Priority:  high          |            Milestone:  8.2.2
       Component:  Compiler      |              Version:  8.2.1-rc3
      Resolution:                |             Keywords:
Operating System:  Linux         |         Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):  Phab:D3897
       Wiki Page:                |
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Comment (by bgamari):

 comment:14 and comment:15 merged to `ghc-8.2` in
 92014a72f12786d8f9c3d9b82a295621ca4b3fff and
 f093d7ea26323f026d95338162913c33525b32fe.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13945#comment:25>
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