Hi John, I got several reports (from the same machine) of crashes in my application when a user types something in wxSTC control. It's difficult to reproduce and seems to happen infrequently, but the captured stack trace points to wxLuaState::LuaPCall call. This is running wxlua 2.8.12.2 and wxwidgets 2.9.5 (compiled at the end of April).
I'm including the top part of the stack trace below (the full stack is in this ticket: https://github.com/pkulchenko/ZeroBraneStudio/issues/164), but there are several odd things I noticed. 1. The trace shows lua51!lua_yield call after wxLuaState::LuaPCall call, but I don't see any lua_yield calls in that function. 2. The trace shows wxProgressDialog_delete_function call in the stack, but I don't use that component anywhere in the application; the stack looks wrong at that point as I wouldn't expect any wxProgressDialog call from lua_getinfo. 3. The crash seems to be in this fragment in wxlua/wxlcallb.cpp: // Don't track the wxEvent since we don't own it and tracking it // causes clashes in the object registry table since many can be // created and deleted and the mem address is resused by C++. wxlState.wxluaT_PushUserDataType(event, event_wxl_type, false); wxlState.LuaPCall(1, 0); // one input no returns What events are being referred to here as "we don't own it"? Is it possible to check for these events explicitly? Any idea why it may be crashing here and how to avoid this? Thank you! I also asked in wx-user maillist, but it may be more wxlua related than wxwidgets related. I'll post an update if I get any additional information. Paul. 0028eb1c 5dac0207 unknown!unknown+0x0 0028eb20 02270b3f wx!ZN12wxEvtHandler15AddPendingEventERK7wxEvent+0x1b 0028eb40 01ed3fe7 wx!Z38wxLua_wxProgressDialog_delete_functionPPv+0x88a 0028eb60 66d85a49 lua51!lua_getinfo+0x1015 0028eb70 66d8ddd1 lua51!lua_close+0x1eb9 0028ebb0 66d8ea14 lua51!lua_close+0x2afc 0028ec50 66d85e34 lua51!lua_getinfo+0x1400 0028ed00 66d85f89 lua51!lua_yield+0x81 0028ed10 66d86431 lua51!lua_yield+0x529 0028ed80 01f65c4e wx!ZN10wxLuaState8LuaPCallEii+0x7c 0028edc0 01f5b2da wx!ZN18wxLuaEventCallback7OnEventEP7wxEvent+0x1f4 0028ee20 01f5b09b wx!ZN18wxLuaEventCallback11OnAllEventsER7wxEvent+0x59 0028ee70 02197e3a wx!ZNK16wxAppConsoleBase16CallEventHandlerEP12wxEvtHandlerR14wxEventFunctorR7wxEvent+0x42 0028eec0 02199839 wx!ZN12wxEvtHandler23ProcessEventIfMatchesIdERK21wxEventTableEntryBasePS_R7wxEvent+0x65 0028eef0 02199aa3 wx!ZN12wxEvtHandler23SearchDynamicEventTableER7wxEvent+0x4f 0028ef20 02199ae2 wx!ZN12wxEvtHandler11TryHereOnlyER7wxEvent+0x28 0028ef40 02199b48 wx!ZN12wxEvtHandler19ProcessEventLocallyER7wxEvent+0x1a 0028ef60 02199bc9 wx!ZN12wxEvtHandler12ProcessEventER7wxEvent+0x63 0028ef90 01f72fb0 wx!ZN16wxStyledTextCtrl12NotifyParentEP14SCNotification+0x252 0028f070 01f75022 wx!ZN11ScintillaWX12NotifyParentE14SCNotification+0x1e 0028f090 01f82de0 wx!ZN6Editor10NotifyCharEi+0x3a 0028f160 01f92f85 wx!ZN6Editor10AddCharUTFEPcjb+0x3e1 0028f1c0 01f7c151 wx!ZN13ScintillaBase10AddCharUTFEPcjb+0x9f 0028f200 01f766a9 wx!ZN11ScintillaWX9DoAddCharEi+0x6f ... ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ wxlua-users mailing list wxlua-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxlua-users
