EXCEPTION_ACCESS_VIOLATION closing render result window after alt-tab #92146

New Issue

db · 2021-10-12T15:46:13+02:00

db commented

2021-10-12 15:46:13 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.12

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-11 23:14, hash: 4b31a21bcd
Worked: Not sure

Short description of error
Blender will close with EXCEPTION_ACCESS_VIOLATION when closing the render result window after alt tabbing out and opening some other files. Always results in same error message in debug output log:

Error : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FF7BC16BA64

The most consistent way I've found to cause it is to open an image file in Windows Photos app and then tab back in.

Exact steps for others to reproduce the error

Run blender_debug_log.cmd (added --factory-startup).
With the default startup file, hit F12 to create a render and leave the render result window open.
Alt-tab out of Blender to Explorer. Open an image with Photos app.
Go back to Blender and close the render result window. Crash.

blender_debug_output.txt

Video:

blender ctd exception_access_violation alt-tab 01.mkv

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.12 **Blender Version** Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-11 23:14, hash: `4b31a21bcd` Worked: Not sure **Short description of error** Blender will close with EXCEPTION_ACCESS_VIOLATION when closing the render result window after alt tabbing out and opening some other files. Always results in same error message in debug output log: > Error : EXCEPTION_ACCESS_VIOLATION > Address : 0x00007FF7BC16BA64 The most consistent way I've found to cause it is to open an image file in Windows Photos app and then tab back in. **Exact steps for others to reproduce the error** 1. Run blender_debug_log.cmd (added --factory-startup). 2. With the default startup file, hit F12 to create a render and leave the render result window open. 3. Alt-tab out of Blender to Explorer. Open an image with Photos app. 4. Go back to Blender and close the render result window. Crash. [blender_debug_output.txt](https://archive.blender.org/developer/F11008464/blender_debug_output.txt) Video: [blender ctd exception_access_violation alt-tab 01.mkv](https://archive.blender.org/developer/F11008506/blender_ctd_exception_access_violation_alt-tab_01.mkv)

db commented

2021-10-12 15:46:13 +02:00

Added subscriber: @browneggz

blender-admin commented

2021-10-12 15:46:13 +02:00

#92219 was marked as duplicate of this issue

blender-admin commented

2021-10-12 15:46:13 +02:00

#92182 was marked as duplicate of this issue

Richard Antalik commented

2021-10-12 16:28:50 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-10-12 16:28:50 +02:00

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

Richard Antalik commented

2021-10-12 16:28:50 +02:00

I think I can reproduce

>	blender.exe!WM_event_get_keymap_from_toolsystem_fallback(wmWindowManager * wm, wmEventHandler_Keymap * handler, wmEventHandler_KeymapResult * km_result) Line 4031	C

 	blender.exe!WM_event_get_keymaps_from_handler(wmWindowManager * wm, wmEventHandler_Keymap * handler, wmEventHandler_KeymapResult * km_result) Line 5264	C
 	blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 3024	C
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3164	C
 	blender.exe!wm_event_do_handlers(bContext * C) Line 3731	C
 	blender.exe!WM_main(bContext * C) Line 650	C
 	blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 562	C
 	[External Code]

Will bisect

I think I can reproduce ``` > blender.exe!WM_event_get_keymap_from_toolsystem_fallback(wmWindowManager * wm, wmEventHandler_Keymap * handler, wmEventHandler_KeymapResult * km_result) Line 4031 C blender.exe!WM_event_get_keymaps_from_handler(wmWindowManager * wm, wmEventHandler_Keymap * handler, wmEventHandler_KeymapResult * km_result) Line 5264 C blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 3024 C blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3164 C blender.exe!wm_event_do_handlers(bContext * C) Line 3731 C blender.exe!WM_main(bContext * C) Line 650 C blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 562 C [External Code] ``` Will bisect

Richard Antalik commented

2021-10-12 17:23:58 +02:00

Added subscriber: @ideasman42

Richard Antalik commented

2021-10-12 17:23:58 +02:00

Caused by cda20a7af8

CC @ideasman42

Caused by cda20a7af89c7da76a5016667f24f06eaa8afdb1 CC @ideasman42

Richard Antalik commented

2021-10-13 19:19:17 +02:00

Added subscriber: @Gadas

Richard Antalik commented

2021-10-14 21:00:52 +02:00

Added subscriber: @Normich

db commented

2021-10-16 20:47:37 +02:00

Not sure if https://developer.blender.org/rB1c18f05f0be0e31c135462d3dea763e97dd26698 (or something else?) indirectly solved my issue as well, but the crash isn't occurring anymore in this afternoon's 4a00faca1a5e build. Thanks guys.

Not sure if https://developer.blender.org/rB1c18f05f0be0e31c135462d3dea763e97dd26698 (or something else?) indirectly solved my issue as well, but the crash isn't occurring anymore in this afternoon's `4a00faca1a5e` build. Thanks guys.

Richard Antalik commented

2021-10-26 03:37:04 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Richard Antalik closed this issue

2021-10-26 03:37:04 +02:00

Richard Antalik self-assigned this 2021-10-26 03:37:04 +02:00

Richard Antalik commented

2021-10-26 03:37:04 +02:00

Can confirm that issue should be resolved now.

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EXCEPTION_ACCESS_VIOLATION closing render result window after alt-tab #92146