#1463: MacRuby crash with accessibility notifications and Method callbacks ------------------------------------+--------------------------------------- Reporter: mrada@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: Component: MacRuby | Keywords: ------------------------------------+--------------------------------------- When I use accessibility for notifications, I have to register a callback. I've exclusively been using Procs for the callbacks in the past and they work fine. However, if I try to setup a Method for the callback instead then MacRuby will crash sometimes. It seems as though there is something go wrong with treating the callback as if it were a Proc: {{{ Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x00007fff91b1995b _class_getSuperclass + 9 1 libmacruby.dylib 0x000000010353fa33 rb_objc_type + 179 2 libmacruby.dylib 0x000000010358302d rb_check_convert_type + 125 3 libmacruby.dylib 0x0000000103562471 rb_proc_check_and_call + 49 4 ??? 0x00000001050ad06c 0 + 4379562092 5 com.apple.HIServices 0x00007fff98b095c5 _XXMIGPostNotification + 904 6 com.apple.HIServices 0x00007fff98b19c25 _XPostNotification + 618 7 com.apple.HIServices 0x00007fff98af1b12 mshMIGPerform + 564 8 com.apple.CoreFoundation 0x00007fff99afccac __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 44 9 com.apple.CoreFoundation 0x00007fff99afc9db __CFRunLoopDoSource1 + 155 10 com.apple.CoreFoundation 0x00007fff99b33117 __CFRunLoopRun + 1895 11 com.apple.CoreFoundation 0x00007fff99b32676 CFRunLoopRunSpecific + 230 12 com.apple.Foundation 0x00007fff9a149f9f -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 267 13 com.apple.Foundation 0x00007fff9a1cdb7a -[NSRunLoop(NSRunLoop) runUntilDate:] + 66 14 ??? 0x00000001050ad723 0 + 4379563811 15 libmacruby.dylib 0x000000010363caa8 rb_vm_dispatch + 5848 16 ??? 0x00000001050ac094 0 + 4379558036 17 ??? 0x00000001050ab674 0 + 4379555444 18 libmacruby.dylib 0x000000010364c156 rb_vm_run + 534 19 libmacruby.dylib 0x0000000103556f33 ruby_run_node + 83 20 macruby 0x0000000103525d18 main + 152 21 macruby 0x0000000103525c74 start + 52 }}} I have a small script that reproduces the issue. When you run the script, just start creating new Finder windows and MacRuby will crash. Sometimes it crashes after a couple of new windows and sometimes it crashes after 10 new windows. -- Ticket URL: <http://www.macruby.org/trac/ticket/1463> MacRuby <http://macruby.org/>