[GHC] #13722: intermittent abort crash from make TEST=hs_try_putmvar003 WAY=threaded2

[GHC]

#13722: intermittent  abort crash from make TEST=hs_try_putmvar003 WAY=threaded2
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        Reporter:  George            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Runtime System    |              Version:  8.2.1-rc2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by George):

 It seems that one may go into an infinite loop consuming a very high
 amount of system time.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13722#comment:2>
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