#14036: GHCi HEAD segfaults upon startup with a prof build -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: patch Priority: highest | Milestone: 8.4.1 Component: Compiler | Version: 8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3983 Wiki Page: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: new => patch * differential: => Phab:D3983 Comment: I found the problem. {{{#!hs arity <= TAG_MASK ? obj + arity : obj, }}} That addition is ''pointer'' addition, which changes all the wrong bits. We need to cast the `obj` to an integer before adding. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14036#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler