[GHC] #787: compacting GC

[GHC]

#787: compacting GC
------------------------------------------+---------------------------------
    Reporter:  Bulat.Ziganshin at gmail.com  |        Owner:         
        Type:  bug                        |       Status:  new    
    Priority:  normal                     |    Milestone:         
   Component:  Compiler                   |      Version:  6.4.2  
    Severity:  normal                     |     Keywords:         
          Os:  Unknown                    |   Difficulty:  Unknown
Architecture:  Unknown                    |  
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although Simon Marlow said that 6.4.2 finally fixed all compacting GC
 bugs, i still easily find one when i started to compile my libraries.
 enclosed file, when compiled with cmdline:

 ghc Locking.hs +RTS -c

 reports the following:

 ghc.EXE: internal error: update_fwd: unknown/strange object  30600
     Please report this as a compiler bug.  See:
     http://www.haskell.org/ghc/reportabug


 if you want to see more bugs, try to compile any large module - i
 encountered problems when compiling just Data.Array.Base or Data.Map from
 6.4.2 libs using the same cmdline

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/787>
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