[GHC] #5553: sendWakeup error in simple test program with MVars and killThread

[GHC]

#5553: sendWakeup error in simple test program with MVars and killThread
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        Reporter:  bit               |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  7.4.2
       Component:  Runtime System    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86
 Type of failure:  Incorrect result  |            Test Case:
  at runtime                         |
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by rrnewton):

 I'm getting this error too, in a different program (on some runs only),
 with GHC 8.0.2.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5553#comment:11>
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