[GHC] #7051: Runtime system crash (OS X intel -N greater than 4)

[GHC]

#7051: Runtime system crash (OS X intel -N greater than 4)
---------------------------+------------------------------------------------
 Reporter:  ndaniels       |          Owner:                
     Type:  bug            |         Status:  new           
 Priority:  normal         |      Component:  Runtime System
  Version:  7.4.1          |       Keywords:                
       Os:  MacOS X        |   Architecture:  x86_64 (amd64)
  Failure:  Runtime crash  |       Testcase:                
Blockedby:                 |       Blocking:                
  Related:                 |  
---------------------------+------------------------------------------------
 I get the following runtime error in my application on my 4-core i7
 macbook pro, running GHC 7.4.1 and the llvm backend. I only get this error
 if I specify -N greater than 4 (perhaps this is a hyperthreading related
 problem?) and only when the application itself calls the function 'error'.
 This happens whether I compile with -fllvm or not. My application is
 called 'mrfy':


 mrfy: internal error: mrfy: internal error: scavenge_stack: weird
 activation record found on stack: 260414112scavenge_stack: weird
 activation record found on stack: 260414112

     (GHC version 7.4.1 for x86_64_apple_darwin)
     (GHC version 7.4.1 for x86_64_apple_darwin)
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
     Please report this as a GHC bug:
 http://www.haskell.org/ghc/reportabug
 Abort trap: 6


 I can provide source if requested.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7051>
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