Regression: Smoothing a Mesh in Edit Mode Causes Segmentation Fault #102318

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Brenden · 2022-11-07T03:43:58+01:00

Brenden commented

2022-11-07 03:43:58 +01:00

System Information
Operating system: Ubuntu 22.04 (Wayland)
Graphics card: Nvidia GeForce RTX 3060

Blender Version
Broken: 3.4.0 Beta bba6d28942
Worked: 3.3
Caused by 12becbf0df

Short description of error
I am trying to smooth the vertices in a mesh on a sculpted hand. When I switch to Edit Mode and choose Mesh -> Weights -> Smooth, the entire Blender program crashes, and the console says "segmentation fault (core dumped).

Exact steps for others to reproduce the error

Open attached file
Select the character's hand mesh and tab into Edit Mode.
Open search menu. Type smooth and select the option Mesh -> Weights -> Smooth. The program should crash.
#102318.blend

**System Information** Operating system: Ubuntu 22.04 (Wayland) Graphics card: Nvidia GeForce RTX 3060 **Blender Version** Broken: 3.4.0 Beta bba6d2894290 Worked: 3.3 Caused by 12becbf0df **Short description of error** I am trying to smooth the vertices in a mesh on a sculpted hand. When I switch to Edit Mode and choose `Mesh -> Weights -> Smooth`, the entire Blender program crashes, and the console says "segmentation fault (core dumped). **Exact steps for others to reproduce the error** - Open attached file - Select the character's hand mesh and tab into Edit Mode. - Open search menu. Type smooth and select the option `Mesh -> Weights -> Smooth`. The program should crash. [#102318.blend](https://archive.blender.org/developer/F13863242/T102318.blend)

Brenden commented

2022-11-07 03:43:58 +01:00

Added subscriber: @brendenahyde

Pratik Borhade commented

2022-11-07 04:59:09 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-11-07 04:59:09 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Pratik Borhade commented

2022-11-07 04:59:09 +01:00

Hi, thanks for the report. I can confirm the crash. I'll check

Stack trace:
blender.exe         :0x00007FF775EAACD0  blender::bke::NamedLegacyCustomDataProvider::try_get_for_read C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access.cc:548
blender.exe         :0x00007FF775E838D0  blender::bke::attribute_accessor_functions::lookup<&`blender::bke::get_mesh_accessor_functions'::`2 C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access_intern.hh:358
blender.exe         :0x00007FF775EA9540  blender::bke::AttributeAccessor::lookup C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access.cc:797
blender.exe         :0x00007FF77674BDC0  vgroup_smooth_subset C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\object\object_vgroup.cc:1926
blender.exe         :0x00007FF776749480  vertex_group_smooth_exec C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\object\object_vgroup.cc:3609
blender.exe         :0x00007FF77601F810  wm_operator_invoke C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1455
blender.exe         :0x00007FF77601EEB0  wm_operator_call_internal C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1652
blender.exe         :0x00007FF776021E10  WM_operator_name_call_ptr_with_depends_on_cursor C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1891
blender.exe         :0x00007FF776916390  menu_search_exec_fn C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_template_search_menu.cc:956
blender.exe         :0x00007FF7768E8C90  ui_apply_but_funcs_after C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_handlers.c:1038
blender.exe         :0x00007FF7768F80B0  ui_popup_handler C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_handlers.c:11494
blender.exe         :0x00007FF77601E330  wm_handlers_do_intern C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3217
blender.exe         :0x00007FF77601D750  wm_handlers_do C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3337
blender.exe         :0x00007FF776023A80  wm_event_do_handlers C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3928
blender.exe         :0x00007FF776009D60  WM_main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm.c:643
blender.exe         :0x00007FF775CF6BA0  main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\creator\creator.c:580
blender.exe         :0x00007FF7772D17B4  __scrt_common_main_seh D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
KERNEL32.DLL        :0x00007FF9E1BB54D0  BaseThreadInitThunk
ntdll.dll           :0x00007FF9E25C4830  RtlUserThreadStart```

Hi, thanks for the report. I can confirm the crash. I'll check ```lines=10 Stack trace: blender.exe :0x00007FF775EAACD0 blender::bke::NamedLegacyCustomDataProvider::try_get_for_read C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access.cc:548 blender.exe :0x00007FF775E838D0 blender::bke::attribute_accessor_functions::lookup<&`blender::bke::get_mesh_accessor_functions'::`2 C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access_intern.hh:358 blender.exe :0x00007FF775EA9540 blender::bke::AttributeAccessor::lookup C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\blenkernel\intern\attribute_access.cc:797 blender.exe :0x00007FF77674BDC0 vgroup_smooth_subset C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\object\object_vgroup.cc:1926 blender.exe :0x00007FF776749480 vertex_group_smooth_exec C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\object\object_vgroup.cc:3609 blender.exe :0x00007FF77601F810 wm_operator_invoke C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1455 blender.exe :0x00007FF77601EEB0 wm_operator_call_internal C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1652 blender.exe :0x00007FF776021E10 WM_operator_name_call_ptr_with_depends_on_cursor C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:1891 blender.exe :0x00007FF776916390 menu_search_exec_fn C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_template_search_menu.cc:956 blender.exe :0x00007FF7768E8C90 ui_apply_but_funcs_after C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_handlers.c:1038 blender.exe :0x00007FF7768F80B0 ui_popup_handler C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\interface\interface_handlers.c:11494 blender.exe :0x00007FF77601E330 wm_handlers_do_intern C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3217 blender.exe :0x00007FF77601D750 wm_handlers_do C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3337 blender.exe :0x00007FF776023A80 wm_event_do_handlers C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3928 blender.exe :0x00007FF776009D60 WM_main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm.c:643 blender.exe :0x00007FF775CF6BA0 main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\creator\creator.c:580 blender.exe :0x00007FF7772D17B4 __scrt_common_main_seh D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288 KERNEL32.DLL :0x00007FF9E1BB54D0 BaseThreadInitThunk ntdll.dll :0x00007FF9E25C4830 RtlUserThreadStart```

Pratik Borhade changed title from ~~Smoothing a Mesh in Edit Mode Causes Segmentation Fault~~ to Regression: Smoothing a Mesh in Edit Mode Causes Segmentation Fault

2022-11-07 05:29:54 +01:00

Pratik Borhade commented

2022-11-07 05:29:58 +01:00

Added subscriber: @HooglyBoogly