Importing BGL Can Crash the BGE and Blender #29031

New Issue

solarlune · 2011-10-26T02:43:15+02:00

solarlune commented

2011-10-26 02:43:15 +02:00

%%%Importing the BGL standalone module can crash the BGE, and so crash Blender. In the example file, a script is run that simply imports the BGL module. If you play the game several times in a row (about 15 for me), the BGE crashes. This bug has been around for quite awhile, if I recall.%%%

solarlune commented

2011-10-26 02:43:15 +02:00

Changed status to: 'Open'

Goran Milovanovic commented

2011-10-26 11:30:07 +02:00

%%%Yep, I got it too - running on Linux, Blender 2.60. It took about 30 turns, but sure enough, it crashed. GDB spits out the following:

0x0907b2ba in type_dealloc (type=0x9744d80) at Objects/typeobject.c:2521

Maybe something is freeing memory that python thinks it should free, or maybe it's a bug in Python? I don't know ... I'll study the backtrace some more.%%%

%%%Yep, I got it too - running on Linux, Blender 2.60. It took about 30 turns, but sure enough, it crashed. GDB spits out the following: 0x0907b2ba in type_dealloc (type=0x9744d80) at Objects/typeobject.c:2521 Maybe something is freeing memory that python thinks it should free, or maybe it's a bug in Python? I don't know ... I'll study the backtrace some more.%%%

solarlune commented

2011-10-27 09:46:12 +02:00

%%%Thanks. Hopefully it'll get fixed soon - the BGUI module uses the BGL module, and it's quite useful...%%%

Dalai Felinto commented

2011-11-01 18:07:23 +01:00

%%%problem confirmed in OSX. I update the sample file to force restart of the game.

Campbell, can you take a look at this?
Backtrace:

0 0x00000001012f12fc in type_dealloc (type=0x10295fc40) at Objects/typeobject.c:2523
1 0x00000001012dd5cb in dict_dealloc (mp=0x105827ec0) at Objects/dictobject.c:1020
2 0x00000001012e1a57 in module_clear (m=0x11a41a1b8) at Objects/moduleobject.c:388
3 0x000000010138544f in delete_garbage [inlined] () at :739
4 0x000000010138544f in collect (generation=1) at Modules/gcmodule.c:897
5 0x0000000101385b5d in _PyObject_GC_Malloc (basicsize=<value temporarily unavailable, due to optimizations>) at Modules/gcmodule.c:963
6 0x0000000101385c15 in _PyObject_GC_New (tp=0x102bd5240) at Modules/gcmodule.c:1472
7 0x00000001012e1840 in PyCFunction_NewEx (ml=0x102960000, self=0x10a13b440, module=0x10a12b7d8) at Objects/methodobject.c:27
8 0x00000001012e2319 in PyModule_Create2 (module=0x102962640, module_api_version=<value temporarily unavailable, due to optimizations>) at Objects/moduleobject.c:131
9 0x000000010052c7de in BPyInit_bgl () at bgl.c:1292
10 0x0000000101360eaf in init_builtin (name=0x7fff5fbfdb30 "bgl") at Python/import.c:2169
11 0x000000010136122c in load_module (name=0x7fff5fbfdb30 "bgl", fp=<value temporarily unavailable, due to optimizations>, pathname=<value temporarily unavailable, due to optimizations>, type=6, loader=<value temporarily unavailable, due to optimizations>) at Python/import.c:2050
12 0x000000010136198f in import_submodule (mod=0x102bd5920, subname=0x7fff5fbfe010 "bgl", fullname=0x7fff5fbfe010 "bgl") at Python/import.c:2894
13 0x0000000101361f0a in load_next (mod=0x102bd5920, altmod=0x102bd5920, p_name=<value temporarily unavailable, due to optimizations>, buf=0x7fff5fbfe010 "bgl", p_buflen=0x7fff5fbfe000) at Python/import.c:2706
14 0x0000000101362304 in PyImport_ImportModuleLevel (name=<value temporarily unavailable, due to optimizations>, globals=0x10fd97890, locals=<value temporarily unavailable, due to optimizations>, fromlist=0x11184bc10, level=0) at Python/import.c:2422
15 0x0000000100539c4b in blender_import (UNUSED_self=0x0, args=0x11184e0b0, kw=0x0) at bpy_internal_import.c:236
16 0x000000010129d5d8 in PyObject_Call (func=0x10f660bd8, arg=0x11184e0b0, kw=0x0) at Objects/abstract.c:2149
17 0x000000010133f447 in PyEval_CallObjectWithKeywords (func=0x10f660bd8, arg=0x11184e0b0, kw=0x0) at Python/ceval.c:3761
18 0x000000010134337d in PyEval_EvalFrameEx (f=0x10fd9c860, throwflag=<value temporarily unavailable, due to optimizations>) at Python/ceval.c:2338
19 0x0000000101348cef in PyEval_EvalCodeEx (_co=0x109557718, globals=<value temporarily unavailable, due to optimizations>, locals=<value temporarily unavailable, due to optimizations>, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at Python/ceval.c:3317
20 0x0000000101348fcf in PyEval_EvalCode (co=<value temporarily unavailable, due to optimizations>, globals=<value temporarily unavailable, due to optimizations>, locals=<value temporarily unavailable, due to optimizations>) at Python/ceval.c:767
21 0x0000000100d68845 in SCA_PythonController::Trigger (this=0x10fd9be00, logicmgr=0x10fdd11a0) at SCA_PythonController.cpp:410
22 0x0000000100d5be3c in SCA_LogicManager::BeginFrame (this=0x10fdd11a0, curtime=0.20250560442606608, fixedtime=0.016666666666666666) at SCA_LogicManager.cpp:200
23 0x0000000100ce94b4 in KX_Scene::LogicBeginFrame (this=0x10eb47200, curtime=0.20250560442606608) at KX_Scene.cpp:1523
24 0x0000000100c946b5 in KX_KetsjiEngine::NextFrame (this=0x10fd91d40) at KX_KetsjiEngine.cpp:646
25 0x0000000100b33af4 in StartKetsjiShell (C=0x104618608, ar=0x10f1c1828, cam_frame=0x7fff5fbff728, always_use_expand_framing=1) at BL_KetsjiEmbedStart.cpp:455
26 0x000000010016daca in game_engine_exec (C=0x104618608, op=0x1046ba078) at view3d_view.c:1829
27 0x0000000100011734 in wm_operator_invoke (C=0x104618608, ot=0x10849f9f8, event=0x1046aecb8, properties=0x10fc8b958, reports=0x0, poll_only=0) at wm_event_system.c:749
28 0x0000000100013040 in wm_handler_operator_call (C=0x104618608, handlers=0x10f1c1930, handler=0x109103d38, event=0x1046aecb8, properties=0x10fc8b958) at wm_event_system.c:1309
29 0x0000000100013929 in wm_handlers_do (C=0x104618608, event=0x1046aecb8, handlers=0x10f1c1930) at wm_event_system.c:1554
30 0x0000000100014941 in wm_event_do_handlers (C=0x104618608) at wm_event_system.c:1909
31 0x000000010000b694 in WM_main (C=0x104618608) at wm.c:386

32 0x000000010000a99f in main (argc=1, argv=0x7fff5fbffba8) at creator.c:1266

%%%

%%%problem confirmed in OSX. I update the sample file to force restart of the game. Campbell, can you take a look at this? Backtrace: - 0 0x00000001012f12fc in type_dealloc (type=0x10295fc40) at Objects/typeobject.c:2523 - 1 0x00000001012dd5cb in dict_dealloc (mp=0x105827ec0) at Objects/dictobject.c:1020 - 2 0x00000001012e1a57 in module_clear (m=0x11a41a1b8) at Objects/moduleobject.c:388 - 3 0x000000010138544f in delete_garbage [inlined] () at :739 - 4 0x000000010138544f in collect (generation=1) at Modules/gcmodule.c:897 - 5 0x0000000101385b5d in _PyObject_GC_Malloc (basicsize=<value temporarily unavailable, due to optimizations>) at Modules/gcmodule.c:963 - 6 0x0000000101385c15 in _PyObject_GC_New (tp=0x102bd5240) at Modules/gcmodule.c:1472 - 7 0x00000001012e1840 in PyCFunction_NewEx (ml=0x102960000, self=0x10a13b440, module=0x10a12b7d8) at Objects/methodobject.c:27 - 8 0x00000001012e2319 in PyModule_Create2 (module=0x102962640, module_api_version=<value temporarily unavailable, due to optimizations>) at Objects/moduleobject.c:131 - 9 0x000000010052c7de in BPyInit_bgl () at bgl.c:1292 - 10 0x0000000101360eaf in init_builtin (name=0x7fff5fbfdb30 "bgl") at Python/import.c:2169 - 11 0x000000010136122c in load_module (name=0x7fff5fbfdb30 "bgl", fp=<value temporarily unavailable, due to optimizations>, pathname=<value temporarily unavailable, due to optimizations>, type=6, loader=<value temporarily unavailable, due to optimizations>) at Python/import.c:2050 - 12 0x000000010136198f in import_submodule (mod=0x102bd5920, subname=0x7fff5fbfe010 "bgl", fullname=0x7fff5fbfe010 "bgl") at Python/import.c:2894 - 13 0x0000000101361f0a in load_next (mod=0x102bd5920, altmod=0x102bd5920, p_name=<value temporarily unavailable, due to optimizations>, buf=0x7fff5fbfe010 "bgl", p_buflen=0x7fff5fbfe000) at Python/import.c:2706 - 14 0x0000000101362304 in PyImport_ImportModuleLevel (name=<value temporarily unavailable, due to optimizations>, globals=0x10fd97890, locals=<value temporarily unavailable, due to optimizations>, fromlist=0x11184bc10, level=0) at Python/import.c:2422 - 15 0x0000000100539c4b in blender_import (UNUSED_self=0x0, args=0x11184e0b0, kw=0x0) at bpy_internal_import.c:236 - 16 0x000000010129d5d8 in PyObject_Call (func=0x10f660bd8, arg=0x11184e0b0, kw=0x0) at Objects/abstract.c:2149 - 17 0x000000010133f447 in PyEval_CallObjectWithKeywords (func=0x10f660bd8, arg=0x11184e0b0, kw=0x0) at Python/ceval.c:3761 - 18 0x000000010134337d in PyEval_EvalFrameEx (f=0x10fd9c860, throwflag=<value temporarily unavailable, due to optimizations>) at Python/ceval.c:2338 - 19 0x0000000101348cef in PyEval_EvalCodeEx (_co=0x109557718, globals=<value temporarily unavailable, due to optimizations>, locals=<value temporarily unavailable, due to optimizations>, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at Python/ceval.c:3317 - 20 0x0000000101348fcf in PyEval_EvalCode (co=<value temporarily unavailable, due to optimizations>, globals=<value temporarily unavailable, due to optimizations>, locals=<value temporarily unavailable, due to optimizations>) at Python/ceval.c:767 - 21 0x0000000100d68845 in SCA_PythonController::Trigger (this=0x10fd9be00, logicmgr=0x10fdd11a0) at SCA_PythonController.cpp:410 - 22 0x0000000100d5be3c in SCA_LogicManager::BeginFrame (this=0x10fdd11a0, curtime=0.20250560442606608, fixedtime=0.016666666666666666) at SCA_LogicManager.cpp:200 - 23 0x0000000100ce94b4 in KX_Scene::LogicBeginFrame (this=0x10eb47200, curtime=0.20250560442606608) at KX_Scene.cpp:1523 - 24 0x0000000100c946b5 in KX_KetsjiEngine::NextFrame (this=0x10fd91d40) at KX_KetsjiEngine.cpp:646 - 25 0x0000000100b33af4 in StartKetsjiShell (C=0x104618608, ar=0x10f1c1828, cam_frame=0x7fff5fbff728, always_use_expand_framing=1) at BL_KetsjiEmbedStart.cpp:455 - 26 0x000000010016daca in game_engine_exec (C=0x104618608, op=0x1046ba078) at view3d_view.c:1829 - 27 0x0000000100011734 in wm_operator_invoke (C=0x104618608, ot=0x10849f9f8, event=0x1046aecb8, properties=0x10fc8b958, reports=0x0, poll_only=0) at wm_event_system.c:749 - 28 0x0000000100013040 in wm_handler_operator_call (C=0x104618608, handlers=0x10f1c1930, handler=0x109103d38, event=0x1046aecb8, properties=0x10fc8b958) at wm_event_system.c:1309 - 29 0x0000000100013929 in wm_handlers_do (C=0x104618608, event=0x1046aecb8, handlers=0x10f1c1930) at wm_event_system.c:1554 - 30 0x0000000100014941 in wm_event_do_handlers (C=0x104618608) at wm_event_system.c:1909 - 31 0x000000010000b694 in WM_main (C=0x104618608) at wm.c:386 # 32 0x000000010000a99f in main (argc=1, argv=0x7fff5fbffba8) at creator.c:1266 %%%

Mitchell Stokes commented

2011-12-22 01:01:41 +01:00

%%%I can confirm this on Win64, but I don't have debug symbols for Python, so I can't get a decent backtrace.%%%

Campbell Barton commented

2011-12-23 06:49:33 +01:00

%%%fixed%%%

Campbell Barton commented

2011-12-23 06:49:36 +01:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2011-12-23 06:49:36 +01:00

solarlune commented

2012-04-09 05:35:18 +02:00

%%%It's my fear that this bug has re-appeared, as it seems like Blender 2.6.2 is doing it again. In addition, I can't use the latest Blender builds from GraphicAll, as I think the BMesh merger broke the BGE, and it crashes almost each time I use any of my personal blend files with it. This also appears to happen to anyone else using the latest BGE builds.%%%

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Importing BGL Can Crash the BGE and Blender #29031

32 0x000000010000a99f in main (argc=1, argv=0x7fff5fbffba8) at creator.c:1266