Contrived Multiresolution Crash #65693

New Issue

Philip Holzmann · 2019-06-10T15:41:39+02:00

Philip Holzmann commented

2019-06-10 15:41:39 +02:00

System Information
Operating system: Windows 10 64 bit
Graphics card: Nvidia GTX 750 Ti

Blender Version
Broken: blender-2.80.0-git.81b68f7279cd-windows64

Short description of error
By doing a sequence of uncommon steps, I can get Blender to crash on clicking Delete Higher in the Multiresolution Modifier.

Exact steps for others to reproduce the error
With the file:

MultiresolutionCrash.blend
Just click Delete Higher to crash.

Without the file:

Start with a cube.
Add the Multiresolution Modifier. Click Subdivide twice.
Create a Linked Duplicate of the cube (Alt+D).
Turn off the viewport display of the modifier in one of the cubes and enter Sculpt Mode.
Turn on Dynamic Topology. Ignore the warning.
Sculpt a little.
Switch to Object Mode.
Decrease the Preview subdivisions in the modifier by 1 and click Delete Higher to crash.

**System Information** Operating system: Windows 10 64 bit Graphics card: Nvidia GTX 750 Ti **Blender Version** Broken: blender-2.80.0-git.81b68f7279cd-windows64 **Short description of error** By doing a sequence of uncommon steps, I can get Blender to crash on clicking *Delete Higher* in the Multiresolution Modifier. **Exact steps for others to reproduce the error** With the file: --- [MultiresolutionCrash.blend](https://archive.blender.org/developer/F7097550/MultiresolutionCrash.blend) Just click *Delete Higher* to crash. Without the file: --- 1. Start with a cube. 2. Add the Multiresolution Modifier. Click *Subdivide* twice. 3. Create a *Linked Duplicate* of the cube (Alt+D). 4. Turn off the *viewport display of the modifier* in one of the cubes and enter *Sculpt Mode*. 5. Turn on *Dynamic Topology*. Ignore the warning. 6. Sculpt a little. 7. Switch to *Object Mode*. 8. Decrease the *Preview* subdivisions in the modifier by 1 and click *Delete Higher* to crash.

Philip Holzmann commented

2019-06-10 15:41:39 +02:00

Added subscriber: @Foaly

tom k commented

2019-06-10 15:50:05 +02:00

Added subscriber: @tomjk

tom k commented

2019-06-10 15:50:05 +02:00

Can reproduce, crashes in latest master.

Operating system: Linux-4.15.0-48-generic-x86_64-with-debian-stretch-sid 64 Bits

Can reproduce, crashes in latest master. Operating system: Linux-4.15.0-48-generic-x86_64-with-debian-stretch-sid 64 Bits

Sebastian Parborg commented

2019-06-17 14:07:30 +02:00

Added subscriber: @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-06-17 14:07:30 +02:00

Sebastian Parborg commented

2019-06-17 14:07:30 +02:00

BT:

Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
0x0000555557d43b78 in copy_v3_v3 (r=0x7fffeae3a4c8, a=0x0) at /home/zed/prog/blender/source/blender/blenlib/intern/math_vector_inline.c:63
63	  r[0] = a[0];
(gdb) bt
- 0  0x0000555557d43b78 in copy_v3_v3 (r=0x7fffeae3a4c8, a=0x0) at /home/zed/prog/blender/source/blender/blenlib/intern/math_vector_inline.c:63
- 1  0x0000555557d457d2 in multires_copy_grid (gridA=0x7fffeae3a4c8, gridB=0x0, sizeA=2, sizeB=3)
    at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:551
#2  0x0000555557d45e71 in multires_del_higher (mmd=0x7fffd2f52748, ob=0x7fffcfd0a608, lvl=1)
    at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:640
#3  0x0000555557d460ae in multiresModifier_del_levels (mmd=0x7fffd2f52748, scene=0x7fffe67f2008, ob=0x7fffcfd0a608, direction=1)
    at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:687
#4  0x0000555558b1afe2 in multires_higher_levels_delete_exec (C=0x7fffeb891208, op=0x7fffe57f6948)
    at /home/zed/prog/blender/source/blender/editors/object/object_modifier.c:1291
#5  0x0000555558b1b076 in multires_higher_levels_delete_invoke (C=0x7fffeb891208, op=0x7fffe57f6948, UNUSED_event=0x7fffe55ddf88)
    at /home/zed/prog/blender/source/blender/editors/object/object_modifier.c:1306
#6  0x0000555558298150 in wm_operator_invoke (C=0x7fffeb891208, ot=0x7fffe654e368, event=0x7fffe55ddf88, properties=0x7fffffffd850, reports=0x0,
    poll_only=false, use_last_properties=true) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1440
#7  0x0000555558298a71 in wm_operator_call_internal (C=0x7fffeb891208, ot=0x7fffe654e368, properties=0x7fffffffd850, reports=0x0, context=0,
    poll_only=false, event=0x7fffe55ddf88) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1687
#8  0x0000555558298b2e in WM_operator_name_call_ptr (C=0x7fffeb891208, ot=0x7fffe654e368, context=0, properties=0x7fffffffd850)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1701
- 9  0x00005555588b58fb in ui_apply_but_funcs_after (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/editors/interface/interface_handlers.c:806
- 10 0x00005555588cdd31 in ui_handler_region_menu (C=0x7fffeb891208, event=0x7fffcfdf5e08, UNUSED_userdata=0x7fffcfc2c188)
    at /home/zed/prog/blender/source/blender/editors/interface/interface_handlers.c:10144
#11 0x0000555558295ec8 in wm_handler_ui_call (C=0x7fffeb891208, handler=0x7fffd2f0f6e8, event=0x7fffcfdf5e08, always_pass=0)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:623
#12 0x000055555829b1b3 in wm_handlers_do_intern (C=0x7fffeb891208, event=0x7fffcfdf5e08, handlers=0x7fffcfc2d198)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2701
#13 0x000055555829bf88 in wm_handlers_do (C=0x7fffeb891208, event=0x7fffcfdf5e08, handlers=0x7fffcfc2d198)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2947
- 14 0x000055555829d15c in wm_event_do_handlers (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:3316
- 15 0x000055555829059c in WM_main (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm.c:417
#16 0x0000555557beb8b9 in main (argc=1, argv=0x7fffffffdff8) at /home/zed/prog/blender/source/creator/creator.c:500

BT: ``` Thread 1 "blender" received signal SIGSEGV, Segmentation fault. 0x0000555557d43b78 in copy_v3_v3 (r=0x7fffeae3a4c8, a=0x0) at /home/zed/prog/blender/source/blender/blenlib/intern/math_vector_inline.c:63 63 r[0] = a[0]; (gdb) bt - 0 0x0000555557d43b78 in copy_v3_v3 (r=0x7fffeae3a4c8, a=0x0) at /home/zed/prog/blender/source/blender/blenlib/intern/math_vector_inline.c:63 - 1 0x0000555557d457d2 in multires_copy_grid (gridA=0x7fffeae3a4c8, gridB=0x0, sizeA=2, sizeB=3) at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:551 #2 0x0000555557d45e71 in multires_del_higher (mmd=0x7fffd2f52748, ob=0x7fffcfd0a608, lvl=1) at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:640 #3 0x0000555557d460ae in multiresModifier_del_levels (mmd=0x7fffd2f52748, scene=0x7fffe67f2008, ob=0x7fffcfd0a608, direction=1) at /home/zed/prog/blender/source/blender/blenkernel/intern/multires.c:687 #4 0x0000555558b1afe2 in multires_higher_levels_delete_exec (C=0x7fffeb891208, op=0x7fffe57f6948) at /home/zed/prog/blender/source/blender/editors/object/object_modifier.c:1291 #5 0x0000555558b1b076 in multires_higher_levels_delete_invoke (C=0x7fffeb891208, op=0x7fffe57f6948, UNUSED_event=0x7fffe55ddf88) at /home/zed/prog/blender/source/blender/editors/object/object_modifier.c:1306 #6 0x0000555558298150 in wm_operator_invoke (C=0x7fffeb891208, ot=0x7fffe654e368, event=0x7fffe55ddf88, properties=0x7fffffffd850, reports=0x0, poll_only=false, use_last_properties=true) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1440 #7 0x0000555558298a71 in wm_operator_call_internal (C=0x7fffeb891208, ot=0x7fffe654e368, properties=0x7fffffffd850, reports=0x0, context=0, poll_only=false, event=0x7fffe55ddf88) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1687 #8 0x0000555558298b2e in WM_operator_name_call_ptr (C=0x7fffeb891208, ot=0x7fffe654e368, context=0, properties=0x7fffffffd850) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:1701 - 9 0x00005555588b58fb in ui_apply_but_funcs_after (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/editors/interface/interface_handlers.c:806 - 10 0x00005555588cdd31 in ui_handler_region_menu (C=0x7fffeb891208, event=0x7fffcfdf5e08, UNUSED_userdata=0x7fffcfc2c188) at /home/zed/prog/blender/source/blender/editors/interface/interface_handlers.c:10144 #11 0x0000555558295ec8 in wm_handler_ui_call (C=0x7fffeb891208, handler=0x7fffd2f0f6e8, event=0x7fffcfdf5e08, always_pass=0) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:623 #12 0x000055555829b1b3 in wm_handlers_do_intern (C=0x7fffeb891208, event=0x7fffcfdf5e08, handlers=0x7fffcfc2d198) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2701 #13 0x000055555829bf88 in wm_handlers_do (C=0x7fffeb891208, event=0x7fffcfdf5e08, handlers=0x7fffcfc2d198) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2947 - 14 0x000055555829d15c in wm_event_do_handlers (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:3316 - 15 0x000055555829059c in WM_main (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm.c:417 #16 0x0000555557beb8b9 in main (argc=1, argv=0x7fffffffdff8) at /home/zed/prog/blender/source/creator/creator.c:500 ```

blender-admin commented

2019-06-17 15:10:28 +02:00

This issue was referenced by 729bd7ddd9

This issue was referenced by 729bd7ddd98d7bad98bb8479f4e03ed1536b20c8

Sergey Sharybin commented

2019-06-17 15:12:19 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2019-06-17 15:12:19 +02:00

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Contrived Multiresolution Crash #65693

Exact steps for others to reproduce the error With the file:

Without the file:

Exact steps for others to reproduce the error
With the file: