I have a wxpython app called h2hh. A user on OSX is getting repeated crashes and has supplied the appended crash dump.
I don’t even know where to start on debugging this! Help? How do I even start? I’ll be grateful even for some questions that might give me clues…
Thanks!
Full crash dump at http://gregories.net/images/crashdump.txt
Date/Time: 2012-10-13 00:40:50 +0200
OS Version: 10.8.2 (Build 12C60)
Architecture: x86_64
Report Version: 11
Command: h2hh
Path: /Applications/h2hh.app/Contents/MacOS/h2hh
Version: 2.1.4 Beta (2.1.4 Beta)
Parent: launchd [225]
PID: 31842
Event: hang
Duration: 1.97s
Steps: 20 (100ms sampling interval)
Hardware model: MacBookAir3,2
Active cpus: 2
Free pages: 311652 pages (-1327)
Pageins: 16 pages
Pageouts: 0 pages
Process: h2hh [31842]
Path: /Applications/h2hh.app/Contents/MacOS/h2hh
Architecture: x86_64
Parent: launchd [225]
UID: 501
Task size: 20328 pages (+470)
CPU Time: 1.936s
Thread 0x69ee1 DispatchQueue 1 priority <multiple> cpu time 0.935s
20 start + 52 (h2hh) [0x100000e24]
20 main + 1438 (h2hh) [0x100004b6e]
20 start + 13830 (h2hh) [0x1000043f6]
20 PyRun_SimpleFileExFlags + 392 (Python) [0x1018c3da8]
20 PyRun_FileExFlags + 164 (Python) [0x1018c2af4]
20 PyEval_EvalCode + 54 (Python) [0x1018a4326]
20 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
20 PyEval_EvalFrameEx + 18189 (Python) [0x1018a109d]
20 ??? (Python + 672856) [0x1018a4458]
20 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
20 PyEval_EvalFrameEx + 3188 (Python) [0x10189d604]
20 PyEval_EvalCode + 54 (Python) [0x1018a4326]
20 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
20 PyEval_EvalFrameEx + 18189 (Python) [0x1018a109d]
20 ??? (Python + 672739) [0x1018a43e3]
20 PyEval_EvalFrameEx + 18725 (Python) [0x1018a12b5]
20 PyObject_Call + 97 (Python) [0x101808be1]
20 ??? (Python + 109079) [0x10181aa17]
20 PyObject_Call + 97 (Python) [0x101808be1]
20 ??? (Python + 202123) [0x10183158b]
20 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
20 PyEval_EvalFrameEx + 20406 (Python) [0x1018a1946]
20 wxPySwigInstance_Check(_object*) + 223711 (_core_.so) [0x101d7244f]
20 wxPyApp::MainLoop() + 76 (_core_.so) [0x101d26c3c]
20 wxAppConsoleBase::MainLoop() + 72 (libwx_osx_cocoau-2.9.4.0.0.dylib) [0x101fac6d8]
20 wxCFEventLoop::Run() + 55 (libwx_osx_cocoau-2.9.4.0.0.dylib) [0x1020a7607]
20 wxGUIEventLoop::DoRun() + 51 (libwx_osx_cocoau-2.9.4.0.0.dylib) [0x1021d40b3]
20 -[NSApplication run] + 517 (AppKit) [0x7fff8f48e283]
20 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128 (AppKit) [0x7fff8f496ed2]
blah blah
1 CFArrayGetFirstIndexOfValue + 35 (CoreFoundation) [0x7fff8d575a83]
1 <executing in user space>
2 ??? (Python + 672739) [0x1018a43e3]
1 PyEval_EvalFrameEx + 18189 (Python) [0x1018a109d]
1 ??? (Python + 672856) [0x1018a4458]
1 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
1 PyEval_EvalFrameEx + 18011 (Python) [0x1018a0feb]
1 ??? (Python + 925773) [0x1018e204d]
1 ??? (Python + 955601) [0x1018e94d1]
1 PyEval_CallObjectWithKeywords + 180 (Python) [0x10189bd94]
1 PyObject_Call + 97 (Python) [0x101808be1]
1 PyUnicodeUCS2_Join + 521 (Python) [0x10187b939]
1 PyUnicodeUCS2_FromEncodedObject + 69 (Python) [0x101879155]
1 <executing in user space>
1 PyEval_EvalFrameEx + 22213 (Python) [0x1018a2055]
1 PyThread_release_lock + 22 (Python) [0x1018d4e06]
1 OSAtomicCompareAndSwap64Barrier$VARIANT$mp + 8 (libsystem_c.dylib) [0x7fff8e78ec9c]
1 <executing in user space>
1 ??? (Python + 672856) [0x1018a4458]
1 PyEval_EvalCodeEx + 2103 (Python) [0x1018a42a7]
1 PyEval_EvalFrameEx + 20406 (Python) [0x1018a1946]
1 wxGBPosition_helper(_object*, wxGBPosition**) + 14799 (_core_.so) [0x101ddbc5f]
1 PyEval_RestoreThread + 62 (Python) [0x1018a44fe]
1 PyThread_acquire_lock + 107 (Python) [0x1018d4ecb]
1 __psynch_cvwait + 10 (libsystem_kernel.dylib) [0x7fff848c50fa]
*1 psynch_cvcontinue + 0 (mach_kernel) [0xffffff80005b5d30]
Make sure you’re not calling a wx method directly from a thread. If you do, then you are doing something that’s undefined and will cause issues. You have to use a wx thread safe method instead, such as wx.CallAfter, wx.CallLater or wx.PostEvent. If you call something like myControlSetValue() from within a thread, you’ll have problems.
I recommend asking over on the wxPython mailing list as well. There are several Mac guys there including a couple of core devs.