[GHC] #12343: base/tests/topHandler03.run failures

[GHC]

#12343: base/tests/topHandler03.run failures
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        Reporter:  niteria           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Test Suite        |              Version:
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by ezyang):

 See https://mail.haskell.org/pipermail/ghc-devs/2016-June/012380.html

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12343#comment:1>
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