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

[GHC]

#13945: 'ghc-pkg update' fails due to bad file descriptor error
---------------------------------+----------------------------------------
        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 Ben Gamari <ben@…>):

 In [changeset:"3b784d440d4b01b4c549df7c9a3ed2058edfc780/ghc" 3b784d4/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="3b784d440d4b01b4c549df7c9a3ed2058edfc780"
 base: Implement file locking in terms of POSIX locks

 Hopefully these are more robust to NFS malfunction than BSD flock-style
 locks.  See #13945.

 Test Plan: Validate via @simonpj

 Reviewers: austin, hvr

 Subscribers: rwbarton, thomie, erikd, simonpj

 GHC Trac Issues: #13945

 Differential Revision: https://phabricator.haskell.org/D4129
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13945#comment:26>
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