[GHC] #12714: T9405 fails on Windows

[GHC]

#12714: T9405 fails on Windows
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           Reporter:  bgamari         |             Owner:
               Type:  bug             |            Status:  new
           Priority:  normal          |         Milestone:  8.2.1
          Component:  Runtime System  |           Version:  8.0.1
           Keywords:                  |  Operating System:  Windows
       Architecture:  x86_64 (amd64)  |   Type of failure:  None/Unknown
          Test Case:                  |        Blocked By:
           Blocking:                  |   Related Tickets:
Differential Rev(s):                  |         Wiki Page:
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 The `T9405` testcase currently fails on Windows,
 {{{
 }}}

 Contrary to what was suggested in ticket:12004#comment:3 it looks like the
 problem is that an empty `.ticky` file is produced. Even increasing the
 `sleep` time to 10 seconds (after bumping the sleep in `T9405.hs`
 accordingly) doesn't change this, so I suspect there is a runtime system
 bug here.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12714>
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