OSL Crashes when script with trace connected to displacement output #66171

New Issue

Ilja Razinkov · 2019-06-27T10:13:34+02:00

Ilja Razinkov commented

2019-06-27 10:13:34 +02:00

System Information
Operating system: MacOs mojave 10.14.5

Blender Version
Broken: hash 054dbb83833e15 (downloaded 27-06-2019)

Blender crashes on OSL-script update when render preview is active under following conditions:

script has trace commands
script output connected to material Displacement node
Without this conditions everything is stable.
I understand that calling trace for getting displace is shady since order of applying displace and executing trace can be different... but sometimes this is really helpful - for example when i need some object to "magnetically stretch" to near objects without complex setups. it should clearly work for non-dependant parts of the scene for example. Or at least should not crash :)

See screenshot and attached blend. Just enable rendered preview and reconnect several times input of script to whatever. You will get crash - for me 2-3 reconnects is sufficient

osl-trace-crash.blend.zip

**System Information** Operating system: MacOs mojave 10.14.5 **Blender Version** Broken: hash 054dbb83833e15 (downloaded 27-06-2019) Blender crashes on OSL-script update when render preview is active under following conditions: 1) script has trace commands 2) script output connected to material Displacement node Without this conditions everything is stable. I understand that calling trace for getting displace is shady since order of applying displace and executing trace can be different... but sometimes this is really helpful - for example when i need some object to "magnetically stretch" to near objects without complex setups. it should clearly work for non-dependant parts of the scene for example. Or at least should not crash :) See screenshot and attached blend. Just enable rendered preview and reconnect several times input of script to whatever. You will get crash - for me 2-3 reconnects is sufficient [osl-trace-crash.blend.zip](https://archive.blender.org/developer/F7551435/osl-trace-crash.blend.zip) ![Снимок экрана 2019-06-27 в 11.12.16.png](https://archive.blender.org/developer/F7551436/Снимок_экрана_2019-06-27_в_11.12.16.png)

Ilja Razinkov commented

2019-06-27 10:13:34 +02:00

Added subscriber: @IPv6

Arto Kitula commented

2019-06-27 11:43:00 +02:00

Added subscriber: @ArtoKitula

Brecht Van Lommel was assigned by Arto Kitula

2019-06-27 11:43:00 +02:00

Arto Kitula commented

2019-06-27 11:43:00 +02:00

I got crash just by enabling rendered.

Application Specific Information:
Assertion failed: (alignment == 16), function aligned_malloc, file /Users/azo/Code/blender/blender build/blender/intern/guardedalloc/intern/mallocn.c, line 79.
 

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x00007fff685b52c6 __pthread_kill + 10
1   libsystem_pthread.dylib       	0x00007fff68670bf1 pthread_kill + 284
2   libsystem_c.dylib             	0x00007fff6851f745 __abort + 144
3   libsystem_c.dylib             	0x00007fff6851f6b5 abort + 142
4   libsystem_c.dylib             	0x00007fff684e820d __assert_rtn + 324
5   Blender                       	0x000000010e8babfb aligned_malloc + 75 (mallocn.c:79)
6   Blender                       	0x000000010e8bd548 MEM_lockfree_mallocN_aligned + 248 (mallocn_lockfree_impl.c:369)
7   Blender                       	0x0000000118152c8a ccl::util_aligned_malloc(unsigned long, int) + 42 (util_aligned_malloc.cpp:46)
8   Blender                       	0x0000000117ea6a00 ccl::OSLRenderServices* ccl::util_aligned_new<ccl::OSLRenderServices, OpenImageIO_v1_8::TextureSystem*>(OpenImageIO_v1_8::TextureSystem*) + 32 (util_aligned_malloc.h:36)
9   Blender                       	0x0000000117ea2233 ccl::OSLShaderManager::shading_system_init() + 147 (osl.cpp:229)
10  Blender                       	0x0000000117ea1e7b ccl::OSLShaderManager::OSLShaderManager() + 139 (osl.cpp:65)
11  Blender                       	0x0000000117ea28a5 ccl::OSLShaderManager::OSLShaderManager() + 21 (osl.cpp:66)
12  Blender                       	0x0000000117edf7bb ccl::ShaderManager::create(ccl::Scene*, int) + 59 (shader.cpp:418)
13  Blender                       	0x0000000117ec3fc3 ccl::Scene::Scene(ccl::SceneParams const&, ccl::Device*) + 1587 (scene.cpp:107)
14  Blender                       	0x0000000117ec42f5 ccl::Scene::Scene(ccl::SceneParams const&, ccl::Device*) + 37 (scene.cpp:110)
15  Blender                       	0x000000010ec3c13a ccl::BlenderSession::create_session() + 1674 (blender_session.cpp:143)
16  Blender                       	0x000000010ec3baa5 ccl::BlenderSession::create() + 21 (blender_session.cpp:120)
17  Blender                       	0x000000010ec412e0 ccl::BlenderSession::reset_session(BL::BlendData&, BL::Depsgraph&) + 576 (blender_session.cpp:206)
18  Blender                       	0x000000010ec2edbb ccl::reset_func(_object*, _object*) + 219 (blender_python.cpp:379)
19  Blender                       	0x000000010ef95e1b _PyMethodDef_RawFastCallKeywords + 251
20  Blender                       	0x000000010ef9536c _PyCFunction_FastCallKeywords + 44 (call.c:733)
21  Blender                       	0x000000010f067568 call_function + 488
22  Blender                       	0x000000010f05f6a2 _PyEval_EvalFrameDefault + 4114 (ceval.c:3087)
23  Blender                       	0x000000010ef95860 function_code_fastcall + 256 (call.c:283)
24  Blender                       	0x000000010f0675f8 call_function + 632 (ceval.c:4586)
25  Blender                       	0x000000010f05f6a2 _PyEval_EvalFrameDefault + 4114 (ceval.c:3087)
26  Blender                       	0x000000010ef95860 function_code_fastcall + 256 (call.c:283)
27  Blender                       	0x000000010e8f9c68 bpy_class_call + 1896 (bpy_rna.c:8295)
28  Blender                       	0x000000010eaba709 engine_view_update + 169 (rna_render.c:224)
29  Blender                       	0x0000000112c7997e external_draw_scene_do + 222 (external_engine.c:206)
30  Blender                       	0x0000000112c7982a external_draw_scene + 90 (external_engine.c:246)
31  Blender                       	0x0000000112c095c1 drw_engines_draw_scene + 113 (draw_manager.c:1184)
32  Blender                       	0x0000000112c08619 DRW_draw_render_loop_ex + 1561 (draw_manager.c:1662)
33  Blender                       	0x0000000112c07ff3 DRW_draw_view + 323 (draw_manager.c:1542)
34  Blender                       	0x0000000113167abf view3d_draw_view + 127 (view3d_draw.c:1450)
35  Blender                       	0x00000001131679f7 view3d_main_region_draw + 55 (view3d_draw.c:1475)
36  Blender                       	0x0000000113241b76 ED_region_do_draw + 374
37  Blender                       	0x000000010eb7b40c wm_draw_window_offscreen + 732 (wm_draw.c:596)
38  Blender                       	0x000000010eb7a762 wm_draw_window + 66 (wm_draw.c:735)
39  Blender                       	0x000000010eb7a4a9 wm_draw_update + 169 (wm_draw.c:897)
40  Blender                       	0x000000010eb77c79 WM_main + 57 (wm.c:411)
41  Blender                       	0x000000010e3a2653 main + 1251
42  libdyld.dylib                 	0x00007fff6847a3d5 start + 1

I got crash just by enabling rendered. ``` Application Specific Information: Assertion failed: (alignment == 16), function aligned_malloc, file /Users/azo/Code/blender/blender build/blender/intern/guardedalloc/intern/mallocn.c, line 79. Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fff685b52c6 __pthread_kill + 10 1 libsystem_pthread.dylib 0x00007fff68670bf1 pthread_kill + 284 2 libsystem_c.dylib 0x00007fff6851f745 __abort + 144 3 libsystem_c.dylib 0x00007fff6851f6b5 abort + 142 4 libsystem_c.dylib 0x00007fff684e820d __assert_rtn + 324 5 Blender 0x000000010e8babfb aligned_malloc + 75 (mallocn.c:79) 6 Blender 0x000000010e8bd548 MEM_lockfree_mallocN_aligned + 248 (mallocn_lockfree_impl.c:369) 7 Blender 0x0000000118152c8a ccl::util_aligned_malloc(unsigned long, int) + 42 (util_aligned_malloc.cpp:46) 8 Blender 0x0000000117ea6a00 ccl::OSLRenderServices* ccl::util_aligned_new<ccl::OSLRenderServices, OpenImageIO_v1_8::TextureSystem*>(OpenImageIO_v1_8::TextureSystem*) + 32 (util_aligned_malloc.h:36) 9 Blender 0x0000000117ea2233 ccl::OSLShaderManager::shading_system_init() + 147 (osl.cpp:229) 10 Blender 0x0000000117ea1e7b ccl::OSLShaderManager::OSLShaderManager() + 139 (osl.cpp:65) 11 Blender 0x0000000117ea28a5 ccl::OSLShaderManager::OSLShaderManager() + 21 (osl.cpp:66) 12 Blender 0x0000000117edf7bb ccl::ShaderManager::create(ccl::Scene*, int) + 59 (shader.cpp:418) 13 Blender 0x0000000117ec3fc3 ccl::Scene::Scene(ccl::SceneParams const&, ccl::Device*) + 1587 (scene.cpp:107) 14 Blender 0x0000000117ec42f5 ccl::Scene::Scene(ccl::SceneParams const&, ccl::Device*) + 37 (scene.cpp:110) 15 Blender 0x000000010ec3c13a ccl::BlenderSession::create_session() + 1674 (blender_session.cpp:143) 16 Blender 0x000000010ec3baa5 ccl::BlenderSession::create() + 21 (blender_session.cpp:120) 17 Blender 0x000000010ec412e0 ccl::BlenderSession::reset_session(BL::BlendData&, BL::Depsgraph&) + 576 (blender_session.cpp:206) 18 Blender 0x000000010ec2edbb ccl::reset_func(_object*, _object*) + 219 (blender_python.cpp:379) 19 Blender 0x000000010ef95e1b _PyMethodDef_RawFastCallKeywords + 251 20 Blender 0x000000010ef9536c _PyCFunction_FastCallKeywords + 44 (call.c:733) 21 Blender 0x000000010f067568 call_function + 488 22 Blender 0x000000010f05f6a2 _PyEval_EvalFrameDefault + 4114 (ceval.c:3087) 23 Blender 0x000000010ef95860 function_code_fastcall + 256 (call.c:283) 24 Blender 0x000000010f0675f8 call_function + 632 (ceval.c:4586) 25 Blender 0x000000010f05f6a2 _PyEval_EvalFrameDefault + 4114 (ceval.c:3087) 26 Blender 0x000000010ef95860 function_code_fastcall + 256 (call.c:283) 27 Blender 0x000000010e8f9c68 bpy_class_call + 1896 (bpy_rna.c:8295) 28 Blender 0x000000010eaba709 engine_view_update + 169 (rna_render.c:224) 29 Blender 0x0000000112c7997e external_draw_scene_do + 222 (external_engine.c:206) 30 Blender 0x0000000112c7982a external_draw_scene + 90 (external_engine.c:246) 31 Blender 0x0000000112c095c1 drw_engines_draw_scene + 113 (draw_manager.c:1184) 32 Blender 0x0000000112c08619 DRW_draw_render_loop_ex + 1561 (draw_manager.c:1662) 33 Blender 0x0000000112c07ff3 DRW_draw_view + 323 (draw_manager.c:1542) 34 Blender 0x0000000113167abf view3d_draw_view + 127 (view3d_draw.c:1450) 35 Blender 0x00000001131679f7 view3d_main_region_draw + 55 (view3d_draw.c:1475) 36 Blender 0x0000000113241b76 ED_region_do_draw + 374 37 Blender 0x000000010eb7b40c wm_draw_window_offscreen + 732 (wm_draw.c:596) 38 Blender 0x000000010eb7a762 wm_draw_window + 66 (wm_draw.c:735) 39 Blender 0x000000010eb7a4a9 wm_draw_update + 169 (wm_draw.c:897) 40 Blender 0x000000010eb77c79 WM_main + 57 (wm.c:411) 41 Blender 0x000000010e3a2653 main + 1251 42 libdyld.dylib 0x00007fff6847a3d5 start + 1 ```

blender-admin commented

2019-06-27 12:39:10 +02:00

This issue was referenced by blender/cycles@3622d6b121

This issue was referenced by blender/cycles@3622d6b121827e491067b620d9172c861790f9d1

blender-admin commented

2019-06-27 12:39:10 +02:00

This issue was referenced by 5eb156e769

This issue was referenced by 5eb156e7692b9ab24338c73f82360338396cdbe1

Brecht Van Lommel commented

2019-06-27 12:46:35 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue