Regression: Duplicating a modifier causes a crash #100394

New Issue

Pavel Duong · 2022-08-14T00:47:58+02:00

Pavel Duong commented

2022-08-14 00:47:58 +02:00

System Information
Operating system: Arch Linux
Graphics card: Intel UHD 620

Blender Version
Broken: 3.4
Worked: 3.3
Caused by f12f7800c2

Short description of error

When duplicating a modifier, Blender crashes. Upon crashing, it is supposed to write out the log in /tmp/blender.crash.txt, however it is completely empty.

Exact steps for others to reproduce the error

Add a modifier (eg. Array)
Duplicate it
Witness the crash

duplicate_error.mp4

**System Information** Operating system: Arch Linux Graphics card: Intel UHD 620 **Blender Version** Broken: 3.4 Worked: 3.3 Caused by f12f7800c2 **Short description of error** When duplicating a modifier, Blender crashes. Upon crashing, it is supposed to write out the log in `/tmp/blender.crash.txt`, however it is completely empty. **Exact steps for others to reproduce the error** 1. Add a modifier (eg. Array) 2. Duplicate it 3. Witness the crash [duplicate_error.mp4](https://archive.blender.org/developer/F13381063/duplicate_error.mp4)

Pavel Duong commented

2022-08-14 00:47:58 +02:00

Added subscriber: @vignette

Hans Goudey commented

2022-08-14 03:20:40 +02:00

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

Iliya Katushenock commented

2022-08-14 18:39:16 +02:00

Added subscriber: @mod_moder

Iliya Katushenock commented

2022-08-14 18:39:16 +02:00

I confirm, but it's hard to reproduce and I haven't been able to do it. But once it was

Sun Kim commented

2022-08-14 19:29:16 +02:00

Added subscriber: @persun

Sun Kim commented

2022-08-14 19:29:16 +02:00

I can consistently reproduce this (Windows 10), and it creates crash.txt.

It seems to be caused by f12f7800c296.

# Blender 3.4.0, Commit date: 2022-08-12 21:55, Hash b5e92c3dfe70
bpy.context.space_data.context = 'MODIFIER'  # Property
bpy.ops.object.modifier_add(type='ARRAY')  # Operator
bpy.ops.object.modifier_copy(modifier="Array")  # Operator

# backtrace
Exception Record:

ExceptionCode         : EXCEPTION_ACCESS_VIOLATION
Exception Address     : 0x00007FF7A2581502
Exception Module      : blender.exe
Exception Flags       : 0x00000000
Exception Parameters  : 0x2
	Parameters[0] : 0x0000000000000000
	Parameters[1] : 0x0000000000000108


Stack trace:
blender.exe         :0x00007FF7A2581460  blender::deg::deg_evaluate_object_modifiers_mode_node_visibility
blender.exe         :0x00007FF7A2570E60  blender::deg::`anonymous namespace'::evaluate_node
blender.exe         :0x00007FF7A2570C00  blender::deg::`anonymous namespace'::deg_task_run_func
blender.exe         :0x00007FF7A74CDBB0  tbb::internal::function_task<Task>::execute
tbb.dll             :0x00007FF8716CF220  tbb::recursive_mutex::scoped_lock::internal_try_acquire
tbb.dll             :0x00007FF8716CF220  tbb::recursive_mutex::scoped_lock::internal_try_acquire
blender.exe         :0x00007FF7A2F1EC00  tbb::internal::task_group_base::wait
blender.exe         :0x00007FF7A25706B0  blender::deg::deg_evaluate_on_refresh
blender.exe         :0x00007FF7A21B2BA0  scene_graph_update_tagged
blender.exe         :0x00007FF7A2483320  wm_event_do_notifiers
blender.exe         :0x00007FF7A2467FB0  WM_main
blender.exe         :0x00007FF7A15512A0  main
blender.exe         :0x00007FF7A76C7DE0  __scrt_common_main_seh
KERNEL32.DLL        :0x00007FF87F787020  BaseThreadInitThunk
ntdll.dll           :0x00007FF87FA62630  RtlUserThreadStart

I can consistently reproduce this (Windows 10), and it creates `crash.txt`. It seems to be caused by `f12f7800c296`. ``` # Blender 3.4.0, Commit date: 2022-08-12 21:55, Hash b5e92c3dfe70 bpy.context.space_data.context = 'MODIFIER' # Property bpy.ops.object.modifier_add(type='ARRAY') # Operator bpy.ops.object.modifier_copy(modifier="Array") # Operator # backtrace Exception Record: ExceptionCode : EXCEPTION_ACCESS_VIOLATION Exception Address : 0x00007FF7A2581502 Exception Module : blender.exe Exception Flags : 0x00000000 Exception Parameters : 0x2 Parameters[0] : 0x0000000000000000 Parameters[1] : 0x0000000000000108 Stack trace: blender.exe :0x00007FF7A2581460 blender::deg::deg_evaluate_object_modifiers_mode_node_visibility blender.exe :0x00007FF7A2570E60 blender::deg::`anonymous namespace'::evaluate_node blender.exe :0x00007FF7A2570C00 blender::deg::`anonymous namespace'::deg_task_run_func blender.exe :0x00007FF7A74CDBB0 tbb::internal::function_task<Task>::execute tbb.dll :0x00007FF8716CF220 tbb::recursive_mutex::scoped_lock::internal_try_acquire tbb.dll :0x00007FF8716CF220 tbb::recursive_mutex::scoped_lock::internal_try_acquire blender.exe :0x00007FF7A2F1EC00 tbb::internal::task_group_base::wait blender.exe :0x00007FF7A25706B0 blender::deg::deg_evaluate_on_refresh blender.exe :0x00007FF7A21B2BA0 scene_graph_update_tagged blender.exe :0x00007FF7A2483320 wm_event_do_notifiers blender.exe :0x00007FF7A2467FB0 WM_main blender.exe :0x00007FF7A15512A0 main blender.exe :0x00007FF7A76C7DE0 __scrt_common_main_seh KERNEL32.DLL :0x00007FF87F787020 BaseThreadInitThunk ntdll.dll :0x00007FF87FA62630 RtlUserThreadStart ```

Pratik Borhade changed title from ~~Regression - Duplicating a modifier causes a crash~~ to Regression: Duplicating a modifier causes a crash

2022-08-15 05:49:08 +02:00

Pratik Borhade commented

2022-08-15 05:49:39 +02:00

Added subscribers: @Sergey, @PratikPB2123

Pratik Borhade commented

2022-08-15 05:49:39 +02:00

First bad commit: f12f7800c2
cc @Sergey

First bad commit: f12f7800c2 cc @Sergey

Sergey Sharybin self-assigned this 2022-08-15 11:20:11 +02:00

blender-admin commented

2022-08-15 11:54:21 +02:00

This issue was referenced by d8841d0aa3

This issue was referenced by d8841d0aa341e05c8cb9559b116b7e2a9ec11882

Sergey Sharybin commented

2022-08-15 12:19:46 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Sergey Sharybin closed this issue

2022-08-15 12:19:46 +02:00

Sergey Sharybin commented

2022-08-15 12:21:47 +02:00

Thanks for the report. Fixed now.
Also added some assert statement to make it easier for others to ensure depsgrasph is used correctly, and fix issues like this more quickly.

Thanks for the report. Fixed now. Also added some assert statement to make it easier for others to ensure depsgrasph is used correctly, and fix issues like this more quickly.

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Regression: Duplicating a modifier causes a crash #100394