[GHC] #7836: Runtime failure profiling with +RTS -hc -hbdrag, void

[GHC]

#7836: Runtime failure profiling with +RTS -hc -hbdrag,void
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        Reporter:  hyperthunk     |            Owner:
            Type:  bug            |           Status:  infoneeded
        Priority:  normal         |        Milestone:
       Component:  Profiling      |          Version:  7.4.2
      Resolution:                 |         Keywords:  profiling osx
Operating System:  MacOS X        |     Architecture:  x86_64 (amd64)
 Type of failure:  Runtime crash  |       Difficulty:  Unknown
       Test Case:                 |       Blocked By:
        Blocking:                 |  Related Tickets:
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Comment (by crockeea):

 I got the following error:

 {{{
 > ghc -rtsopts -prof -fprof-auto -threaded A
 > ./A +RTS -sstderr -hb
 A: internal error: Invalid object in processHeapClosureForDead(): 0
     (GHC version 7.6.3 for x86_64_unknown_linux)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
 Aborted
 }}}

 All other heap profiling options (-hc -hm -hd -hy -hr) work without error.

 Note that this occurred with GHC 7.6.3. My program is too large to post,
 but I figured I would add this to the bug report to let you know the
 problem persists.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7836#comment:9>
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