id summary reporter owner description type status priority milestone component version resolution keywords cc os architecture failure difficulty testcase blockedby blocking related 7314 GHCi 64-bit OS X segfaults on interaction with C-libraries darchon "I'm experiencing spurious behaviour (segfaults sometimes) using GHCi when working with code that interacts with C-libraries. It seems to be an OS X only bug. The spurious behaviour is as follows:[[BR]][[BR]] OS X 10.8 (gcc 4.2.1, clang 4.0):[[BR]] - 32-bit: interpreted and compiled work correctly[[BR]] - 64-bit: only compiled code works correctly, interpreted code segfaults (11) OS X 10.6 (gcc 4.2.1, XCode 3.2.6):[[BR]] - 32-bit: interpreted and compiled code work correctly[[BR]] - 64-bit: interpreted and compiled code work correctly Additionally (OS X 10.8): When I run 'ghci' from inside 'gdb' (to find the origin for the segfault), everything works fine (e.g. _no_ segfault). Here is a link to the crash report given by OS X: http://pastebin.com/jZjfFtm7 And this is the test case: {{{ cabal install gloss --flags""-GLUT GLFW"" cabal unpack gloss-examples cd /picture/GameEvent ghci -fno-ghci-sandbox Main.hs main }}} I'm filing this bug report in relation to the following thread on haskell-cafe, which is about removing the 32-bit recommendation for Haskell Platform on OS X:[[BR]] http://thread.gmane.org/gmane.comp.lang.haskell.cafe/100652" bug closed normal Compiler 7.4.1 worksforme GHCi external library 64-bit gloss george.colpitts@… MacOS X x86_64 (amd64) GHCi crash