I'm using the GHC API in GHC 7.2, and running into some problems. For background, I have working code that uses compileExpr to get a value from a dynamically loaded module. However, I'd like to do some profiling, and it appears that compileExpr doesn't work from executables that are built with profiling. So instead, I tried to take a more circuitous route... I'm using getModuleInfo and modInfoTyThings to get a list of all the declarations in the module, and finding the one I want, which I call var. This all works fine, and I can print the type and the name, and I know I have the right thing and it's got the correct type. But then I do: session <- getSession v <- liftIO $ getHValue session var return (unsafeCoerce# v) and I get a segfault when I try to access the resulting value. Keep in mind that this is the same value that works fine when I access it with compileExpr on an expression I've constructed to retrieve it. Any ideas what's going on? Am I missing a step? -- Chris Smith