#9480: Segfault in GHC API code using Shelly -------------------------------------+------------------------------------- Reporter: agibiansky | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHC API | Version: 7.8.3 Keywords: | Operating System: Linux Architecture: Unknown/Multiple | Type of failure: Runtime Difficulty: Unknown | crash Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- A segfault occurs when using the GHC API with Shelly. I do not know why. Here is a code snippet that triggers it: {{{#!hs import GHC import GHC.Paths ( libdir ) import DynFlags main = runGhc (Just libdir) $ do dflags <- getSessionDynFlags setSessionDynFlags $ dflags { hscTarget = HscInterpreted, ghcLink = LinkInMemory } imports <- mapM parseImportDecl ["import Shelly", "import Prelude"] setContext $ map IIDecl imports runStmt "shelly undefined" RunToCompletion }}} Note that on Mac OS X, this has no output whatsoever. The segfault occurs on Ubuntu 14.04, with `uname -a` outputting the following: {{{ Linux yed 3.13.0-34-generic #60-Ubuntu SMP Wed Aug 13 15:45:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux }}} I cannot find any way to get this to work and have no idea what's up with this or why shelly triggers it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9480 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler