[GHC] #951: stage2 on sparc dies with "schedule: re-entered unsafely"

[GHC]

#951: stage2 on sparc dies with "schedule: re-entered unsafely"
----------------------------+-----------------------------------------------
 Reporter:  duncan          |          Owner:         
     Type:  bug             |         Status:  new    
 Priority:  normal          |      Milestone:  6.6.1  
Component:  Runtime System  |        Version:  6.6    
 Severity:  major           |     Resolution:         
 Keywords:                  |     Difficulty:  Unknown
 Testcase:  N/A             |   Architecture:  sparc  
       Os:  Multiple        |  
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Changes (by maeder at tzi.de):

  * cc:  => duncan.coutts at worc.ox.ac.uk

Comment:

 I was able to locally install gcc-4.0.3 (with -enable-language=c only) and
 create a working stage2 compiler (on our machine named cni)!

 N.B. The old compiler gcc_3.4.4 that caused "schedule: re-entered
 unsafely" even generates a seg-faulting stage2 compiler if "-threaded" is
 commented out in the compiler Makefiles.

 I've now idea why these gcc versions behave that different.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/951>
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