[GHC] #13903: KQueue evtmgr backend fails to register for write events

[GHC]

#13903: KQueue evtmgr backend fails to register for write events
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        Reporter:  waldheinz         |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Runtime System    |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  FreeBSD           |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3692
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"6c3eafb35eb7c664963d08a5904faf8c6471218e/ghc"
 6c3eafb3/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6c3eafb35eb7c664963d08a5904faf8c6471218e"
 KQueue: Fix write notification requests being ignored...

 when read notifications are requested, too (#13903)

 Signed-off-by: Matthias Treydte <mt at waldheinz.de>

 KQueue: Drop Bits/FiniteBits instances for Filter as they are really
 constants whose bits should not be fiddled with

 Signed-off-by: Matthias Treydte <mt at waldheinz.de>

 Reviewers: austin, hvr, bgamari

 Reviewed By: bgamari

 Subscribers: gridaphobe, kazu_yamamoto, rwbarton, thomie

 GHC Trac Issues: #13903

 Differential Revision: https://phabricator.haskell.org/D3692
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13903#comment:5>
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