[GHC] #8665: RELEASE_LOCK: I do not own this lock

[GHC]

#8665: RELEASE_LOCK: I do not own this lock
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       Reporter:  guest           |             Owner:
           Type:  bug             |            Status:  new
       Priority:  normal          |         Milestone:  _|_
      Component:  Compiler        |           Version:  7.6.3
       Keywords:                  |  Operating System:  MacOS X
   Architecture:  x86_64 (amd64)  |   Type of failure:  Runtime crash
     Difficulty:  Unknown         |         Test Case:
     Blocked By:                  |          Blocking:
Related Tickets:                  |
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 Got this error running the latest version of Yesod:

 {{{
 Accept:
 text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
 devel.hs: internal error: RELEASE_LOCK: I do not own this lock:
 rts/Capability.c 431
     (GHC version 7.6.3 for x86_64_apple_darwin)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
 Exit code: ExitFailure 6
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8665>
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