[GHC] #14497: internal error: scavenge_one: strange object 19828

[GHC]

#14497: internal error: scavenge_one: strange object 19828
-------------------------------------+-------------------------------------
           Reporter:  Yuras          |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.2.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Runtime crash
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 I'll attach the test program. Reproduces each time.

 {{{
 $ ./test
 Nothing
 test: internal error: scavenge_one: strange object 19828
 Stack trace:                  0x4b27df    set_initial_registers
 (rts/Libdw.c:288.0)
             0x7fe51b3fcd48    dwfl_thread_getframes (/usr/lib/x86_64
 -linux-gnu/libdw-0.170.so)
             0x7fe51b3fd22c    dwfl_getthread_frames (/usr/lib/x86_64
 -linux-gnu/libdw-0.170.so)
                   0x4b2ddd    libdwGetBacktrace (rts/Libdw.c:259.0)
                   0x49883b    rtsFatalInternalErrorFn
 (rts/RtsMessages.c:169.0)
                   0x4989ed    barf (rts/RtsMessages.c:47.0)
                   0x4b3f8c    scavenge_one (rts/sm/Scav.c:1615.0)
                   0x4b4e91    scavenge_loop1 (rts/sm/Scav.c:2066.0)
                   0x49d517    scavenge_until_all_done (rts/sm/GC.c:1017.0)
                   0x49dde4    GarbageCollect (rts/sm/GC.c:412.0)
                   0x4969a3    scheduleDoGC (rts/Schedule.c:1827.0)
                   0x49776c    schedule (rts/Schedule.c:558.0)
                   0x49811c    scheduleWorker (rts/Schedule.c:2582.0)
             0x7fe51b835494    start_thread (/build/glibc-
 tnXPha/glibc-2.24/nptl/pthread_create.c:333.0)
             0x7fe51b113abf    __clone
 (../sysdeps/unix/sysv/linux/x86_64/clone.S:99.0)

     (GHC version 8.2.1 for x86_64_unknown_linux)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
 Aborted
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14497>
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