[GHC] #10639: Tight (non-allocating) loop freezes the scheduler

[GHC]

#10639: Tight (non-allocating) loop freezes the scheduler
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        Reporter:  gizmo.mk0         |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.1
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Incorrect result  |  (amd64)
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1127
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"9aa94586fde73e818e32e5cc0e6420f6ed36a80b/ghc"
 9aa94586/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="9aa94586fde73e818e32e5cc0e6420f6ed36a80b"
 Note STM's vulnerability to non-allocating loops

 Test Plan: Read it

 Reviewers: austin, fryguybob

 Reviewed By: austin

 Subscribers: thomie, fryguybob

 Differential Revision: https://phabricator.haskell.org/D1523

 GHC Trac Issues: #10639, #367
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10639#comment:10>
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