[GHC] #791: The program built with ghc 6.4.2 -prof hangs, without -prof works

[GHC]

#791: The program built with ghc 6.4.2 -prof hangs, without -prof works
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  Reporter:  mblazevic at stilo.com  |          Owner:         
      Type:  bug                  |         Status:  new    
  Priority:  normal               |      Milestone:         
 Component:  Compiler             |        Version:  6.4.2  
  Severity:  normal               |     Resolution:         
  Keywords:                       |             Os:  Unknown
Difficulty:  Unknown              |   Architecture:  Unknown
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Old description:

> To reproduce the problem, download the attachment and do the following,
> assuming 6.4.2 is the version of the ghc executable in path:
>
> tar xzf static.tar.gz
> cd static
> make
> ./gens 4                    # works
> ./gens - <tests             # works
> ./gens-prof 4               # hangs
>

> Several points:
>
> - ghc 6.4.1 works properly. That's what I'm using for profiling now.
> - At first I thought the problem was with Edison libraries, but an older
> version of the project, without Edison, behaves the same.
> - Removing -auto-all and add -fasm made no difference. I guess that means
> GCC is not at fault.
>
> By the way, I'm running Gentoo Linux with an Athlon CPU. Let me know if
> you have trouble reproducing the problem.

New description:

 To reproduce the problem, download the attachment and do the following,
 assuming 6.4.2 is the version of the ghc executable in path:
 {{{
 tar xzf static.tar.gz
 cd static
 make
 ./gens 4                    # works
 ./gens - <tests             # works
 ./gens-prof 4               # hangs
 }}}

 Several points:

  * ghc 6.4.1 works properly. That's what I'm using for profiling now.
  * At first I thought the problem was with Edison libraries, but an
    older version of the project, without Edison, behaves the same.
  * Removing -auto-all and add -fasm made no difference. I guess that means
 GCC is not at fault.

 By the way, I'm running Gentoo Linux with an Athlon CPU. Let me know if
 you have trouble reproducing the problem.

Comment (by simonmar):

 markup description

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/791>
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