[GHC] #5494: "PAP object entered!" error when throw is used instead of throwIO

[GHC]

#5494: "PAP object entered!" error when throw is used instead of throwIO
-----------------------------------+----------------------------------------
    Reporter:  mikhail.vorozhtsov  |        Owner:  igloo        
        Type:  bug                 |       Status:  infoneeded   
    Priority:  high                |    Milestone:  7.4.1        
   Component:  Runtime System      |      Version:  7.3          
    Keywords:                      |     Testcase:               
   Blockedby:                      |   Difficulty:               
          Os:  Linux               |     Blocking:               
Architecture:  x86_64 (amd64)      |      Failure:  Runtime crash
-----------------------------------+----------------------------------------
Changes (by igloo):

  * status:  new => infoneeded


Comment:

 I had to make a few small changes to get it to build with HEAD (commenting
 out a couple of type signatures for record selectors, and making sure
 constructors for newtypes used in FFI bindings are visible), but having
 done so I couldn't reproduce it (building parsec-2.1.0.1, network-2.3.0.7,
 HsOpenSSL-0.10.1 with a HEAD validate build on amd64/Linux).

 If you can still reproduce the problem then can you please make a minimal
 testcase, without any dependencies on libraries that don't come with GHC?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5494#comment:3>
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