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

[GHC]

#951: stage2 on sparc dies with "schedule: re-entered unsafely"
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 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:                  |   Architecture:  sparc  
       Os:  Multiple        |  
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Comment (by maeder at tzi.de):

 I could reproduce the error on leo (both machines) by using gcc_3.4.4_s10,
 so I suppose gcc is the problem (and not NumCPU or something else).

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