[GHC] #14431: Peculiar RTS crash on OS X

[GHC]

#14431: Peculiar RTS crash on OS X
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           Reporter:  bgamari           |             Owner:  (none)
               Type:  bug               |            Status:  new
           Priority:  normal            |         Milestone:
          Component:  Compiler          |           Version:  8.2.1
           Keywords:                    |  Operating System:  MacOS X
       Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
          Test Case:                    |        Blocked By:
           Blocking:                    |   Related Tickets:
Differential Rev(s):                    |         Wiki Page:
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 This
 [[https://phabricator.haskell.org/harbormaster/build/36804/|Harbormaster
 build]] failed with an odd RTS crash from the stage0 compiler (which is
 8.2.1),
 {{{
 ghc: internal error: RELEASE_LOCK: I do not own this lock:
 rts/posix/itimer/Pthread.c 187
     (GHC version 8.2.1 for x86_64_apple_darwin)
 Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
 }}}

 It's not immediately clear to me from the implementation how this could
 happen, but I thought I should at least note the issue.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14431>
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