[GHC] #15287: T11627[ab] fail on some Darwin environments

[GHC]

#15287: T11627[ab] fail on some Darwin environments
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by bgamari):

 A backtrace from another run (which inexplicably has no debug symbols in
 `RetainerProfile.c`):
 {{{
 (lldb) bt
 * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS
 (code=1, address=0xfffffffffffffff8)
   * frame #0: 0x00000001000d538b T11627a`retainClosure + 123
     frame #1: 0x00000001000dcdef T11627a`markStableTables at Stable.c:474
 [opt]
     frame #2: 0x00000001000dcdaf
 T11627a`markStableTables(evac=(T11627a`retainRoot),
 user=0x0000000000000000) at Stable.c:492 [opt]
     frame #3: 0x00000001000d5155 T11627a`retainerProfile + 277
     frame #4: 0x00000001000d016b T11627a`heapCensus(t=<unavailable>) at
 ProfHeap.c:1174 [opt]
     frame #5: 0x00000001000ea029
 T11627a`GarbageCollect(collect_gen=<unavailable>,
 do_heap_census=<unavailable>, gc_type=<unavailable>,
 cap=0x0000000100142500, idle_cap=0x0000000000000001) at GC.c:771 [opt]
     frame #6: 0x00000001000dc360 T11627a`scheduleDoGC(pcap=<unavailable>,
 task=<unavailable>, force_major=<unavailable>) at Schedule.c:1799 [opt]
     frame #7: 0x00000001000dc08e T11627a`scheduleWaitThread [inlined]
 schedule(initialCapability=<unavailable>, task=<unavailable>) at
 Schedule.c:545 [opt]
     frame #8: 0x00000001000db7eb
 T11627a`scheduleWaitThread(tso=<unavailable>, ret=<unavailable>,
 pcap=0x00007fff5fbff2f8) at Schedule.c:2533 [opt]
     frame #9: 0x00000001000d98ab T11627a`hs_main(argc=1,
 argv=0x00007fff5fbff458, main_closure=<unavailable>, rts_config=RtsConfig
 @ 0x00007fff5fbff320) at RtsMain.c:72 [opt]
     frame #10: 0x0000000100001b16 T11627a`main + 166
     frame #11: 0x00007fff8e844235 libdyld.dylib`start + 1
     frame #12: 0x00007fff8e844235 libdyld.dylib`start + 1
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15287#comment:2>
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