[GHC] #9640: Invalid object in processHeapClosureForDead(): 2130762223

[GHC]

#9640: Invalid object in processHeapClosureForDead(): 2130762223
-------------------------------------+-------------------------------------
       Reporter:  Fuuzetsu           |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  Compiler           |                 Version:  7.8.3
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Unknown            |         Type of failure:
     Blocked By:                     |  None/Unknown
Related Tickets:                     |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
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 I just tried using {{{-hb}}} profiling for Yi and hit

 {{{
 yi: internal error: Invalid object in processHeapClosureForDead():
 2130762223
     (GHC version 7.8.3 for x86_64_unknown_linux)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
 Aborted
 }}}

 Unfortunately I don't have an easy way to replicate. In my case it's to
 check out HEAD version of Yi, build with profiling and run

 {{{
 [nix-shell:~/programming/yi/yi]$ TERM=xterm yi_datadir=. dist/build/yi/yi
 -fpango --as=emacs -y /tmp /tmp/long +RTS -p -hb
 }}}

 where {{{/tmp/long}}} here is just a file with 1MB of the letter {{{A}}}
 repeated on a single line.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9640>
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