[GHC] #13024: T12877 intermittently fails

[GHC]

#13024: T12877 intermittently fails
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           Reporter:  ezyang         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  low            |         Milestone:
          Component:  Test Suite     |           Version:  8.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 I recently ran a validate where this failed:

 {{{
 bytes allocated value is too high:
     Expected    T12877(normal) bytes allocated: 135979000 +/-5%
     Lower bound T12877(normal) bytes allocated: 129180050·
     Upper bound T12877(normal) bytes allocated: 142777950·
     Actual      T12877(normal) bytes allocated: 143317872·
     Deviation   T12877(normal) bytes allocated:       5.4 %
 *** unexpected stat test failure for T12877(normal)
 }}}

 When I reran the test by itself, it passed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13024>
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