[GHC] #15508: concprog001 fails with various errors

[GHC]

#15508: concprog001 fails with various errors
-------------------------------------+-------------------------------------
        Reporter:  osa1              |                Owner:  osa1
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.8.1
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15571            |  Differential Rev(s):  Phab:D5051
                                     |  (reverted), Phab:D5165, Phab:D5178,
       Wiki Page:                    |  MR:103
-------------------------------------+-------------------------------------

Comment (by osa1):

 Now that MR:103 is merged things are pretty good. Currently I can only
 make this test
 fail with `-DS` in non-threaded runtime, and that's because of the new
 sanity
 check I added with 82d1a88dec216d761b17252ede760da5c566007f. Hopefully
 this should be easier to fix as assertions failures are usually easy to
 figure out.

 The commit merged with MR:103: 74cd4ec5d2f9321aad5db3285cb60d78f2562996

 Note that the commit in comment:3 was later reverted because it broke
 things. I'll try that commit again as it may have just revealed some of
 the bugs we fixed in the meantime. In the meantime if it was merged to 8.8
 branch we should also merge the revert commit.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15508#comment:35>
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