'BLOCKING' operator option on multiple windows #99994

New Issue

Ivan Perevala · 2022-07-26T13:10:43+02:00

Ivan Perevala commented

2022-07-26 13:10:43 +02:00

System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59

Blender Version
Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: e05e1e3691
Worked: -

Short description of error
'BLOCKING' operator option on multiple windows stop blocking everything else from using user input on window focus change (active window).

Exact steps for others to reproduce the error

Enter edit mode, select Knife Tool.
Open new window in same session
Start Knife operator (because its built-in 'BLOCKING' modal operator) in first window
Mouse click on desktop/Blender console/taskbar (change window focus)
Click in second window (its already "unlocked")
Select all > Delete
Click on first window
Blender crush

blender_system_info.txt

blender_debug_output.txt

**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59 **Blender Version** Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash: `e05e1e3691` Worked: - **Short description of error** 'BLOCKING' operator option on multiple windows stop blocking everything else from using user input on window focus change (active window). **Exact steps for others to reproduce the error** * Enter edit mode, select Knife Tool. * Open new window in same session * Start Knife operator (because its built-in 'BLOCKING' modal operator) in first window * Mouse click on desktop/Blender console/taskbar (change window focus) * Click in second window (its already "unlocked") * Select all > Delete * Click on first window * Blender crush ![Screenshot 2022-07-26 125922.jpg](https://archive.blender.org/developer/F13318393/Screenshot_2022-07-26_125922.jpg) [blender_system_info.txt](https://archive.blender.org/developer/F13318399/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F13318400/blender_debug_output.txt)

Ivan Perevala commented

2022-07-26 13:10:43 +02:00

Added subscriber: @ivpe

Pratik Borhade commented

2022-07-26 13:45:15 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-07-26 13:55:45 +02:00

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

Pratik Borhade commented

2022-07-26 13:55:45 +02:00

Thanks for the report. I can confirm the crash for this particular case

blender.exe         :0x00007FF6F94A5940  knife_find_line_hits C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:2946
blender.exe         :0x00007FF6F94A9080  knife_update_active C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4273
blender.exe         :0x00007FF6F94ACD00  knifetool_update_mval_i C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4288
blender.exe         :0x00007FF6F94AB880  knifetool_modal C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4681
blender.exe         :0x00007FF6F8AEF210  wm_handler_operator_call C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:2329
blender.exe         :0x00007FF6F8AF0400  wm_handlers_do_intern C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3229
blender.exe         :0x00007FF6F8AEF820  wm_handlers_do C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3284
blender.exe         :0x00007FF6F8AF5BD0  wm_event_do_handlers C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3875
blender.exe         :0x00007FF6F8ADC200  WM_main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm.c:634
blender.exe         :0x00007FF6F8AD7930  main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\creator\creator.c:552
blender.exe         :0x00007FF6F9DB5FA4  __scrt_common_main_seh D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
KERNEL32.DLL        :0x00007FFA176A54D0  BaseThreadInitThunk
ntdll.dll           :0x00007FFA17B24830  RtlUserThreadStart

'BLOCKING' operator option

Which are other such operators you're known to?

Thanks for the report. I can confirm the crash for this particular case ```lines=10 blender.exe :0x00007FF6F94A5940 knife_find_line_hits C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:2946 blender.exe :0x00007FF6F94A9080 knife_update_active C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4273 blender.exe :0x00007FF6F94ACD00 knifetool_update_mval_i C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4288 blender.exe :0x00007FF6F94AB880 knifetool_modal C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\editors\mesh\editmesh_knife.c:4681 blender.exe :0x00007FF6F8AEF210 wm_handler_operator_call C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:2329 blender.exe :0x00007FF6F8AF0400 wm_handlers_do_intern C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3229 blender.exe :0x00007FF6F8AEF820 wm_handlers_do C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3284 blender.exe :0x00007FF6F8AF5BD0 wm_event_do_handlers C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm_event_system.cc:3875 blender.exe :0x00007FF6F8ADC200 WM_main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\blender\windowmanager\intern\wm.c:634 blender.exe :0x00007FF6F8AD7930 main C:\Users\prati\OneDrive\Desktop\BlenderOSP\blender\source\creator\creator.c:552 blender.exe :0x00007FF6F9DB5FA4 __scrt_common_main_seh D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288 KERNEL32.DLL :0x00007FFA176A54D0 BaseThreadInitThunk ntdll.dll :0x00007FFA17B24830 RtlUserThreadStart ``` --- > 'BLOCKING' operator option Which are other such operators you're known to?

Cian Jinks commented

2022-07-26 13:59:42 +02:00

Added subscriber: @HobbesOS

Ivan Perevala commented

2022-07-26 14:07:45 +02:00

@PratikPB2123 I encountered this bug while writing the addon. That is, at least, from the side of the python API, everything does not work either. But I think it is obvious that the problem is how the Window Manager processes operators with the flag ot->flag=OPTYPE_REGISTER| OPTYPE_UNDO | OPTYPE_BLOCKING;. Therefore, yes, I listed this operator as a built-in example only

@PratikPB2123 I encountered this bug while writing the addon. That is, at least, from the side of the python API, everything does not work either. But I think it is obvious that the problem is how the Window Manager processes operators with the flag `ot->flag=OPTYPE_REGISTER| OPTYPE_UNDO | OPTYPE_BLOCKING;`. Therefore, yes, I listed this operator as a built-in example only

Philipp Oeser removed the

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'BLOCKING' operator option on multiple windows #99994