[GHC] #641: Cross platform repeatable RTS

[GHC]

#641: Cross platform repeatable RTS
---------------------------------+------------------------------------------
  Reporter:  cgibbard at gmail.com  |          Owner:        
      Type:  bug                 |         Status:  closed
  Priority:  normal              |      Milestone:        
 Component:  Runtime System      |        Version:  6.4.1 
  Severity:  normal              |     Resolution:  fixed 
  Keywords:                      |             Os:  Linux 
Difficulty:  Unknown             |   Architecture:  x86   
---------------------------------+------------------------------------------
Changes (by simonmar):

  * resolution:  => fixed
  * status:  new => closed

Old description:

> This bug seems to be reproducible on Linux, Windows, and OpenBSD, at
> least.
>
> In the included package, run ./build.sh, which will build and run a
> program as follows:
> ghc -lz -threaded --make unstuff.hs -o unstuff
> ./unstuff trace.dat
>
> The program forks a lot of OS threads. After several seconds of running,
> it dies with:
> ---------------------
> unstuff: user error (ORANGE ALERT: 0s, 4s, SrvServerInfo, ix1: 6, size:
> 49722)
>
> unstuff: internal error: scavenge_stack: weird activation record found on
> stack: 64384
>     Please report this as a bug to glasgow-haskell-bugs at haskell.org,
>     or http://www.sourceforge.net/projects/ghc/
> ---------------------
>
> The first message is simply an error printed by the program reporting
> that it took too long to compute a result.

New description:

 This bug seems to be reproducible on Linux, Windows, and OpenBSD, at
 least.

 In the included package, run ./build.sh, which will build and run a
 program as follows:
 {{{
 ghc -lz -threaded --make unstuff.hs -o unstuff
 ./unstuff trace.dat
 }}}

 The program forks a lot of OS threads. After several seconds of running,
 it dies with:

 {{{
 unstuff: user error (ORANGE ALERT: 0s, 4s, SrvServerInfo, ix1: 6, size:
 49722)

 unstuff: internal error: scavenge_stack: weird activation record found on
 stack: 64384
     Please report this as a bug to glasgow-haskell-bugs at haskell.org,
     or http://www.sourceforge.net/projects/ghc/
 }}}

 The first message is simply an error printed by the program reporting that
 it took too long to compute a result.

Comment:

 Now fixed, in both HEAD and STABLE.  There was a problem with the state in
 which we leave the stack after a thread has been killed by an unhandled
 exception.

-- 
Ticket URL: <http://cvs.haskell.org/trac/ghc/ticket/641>
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