Multiresolution Subdivide Crash with render "Simplify" option #59647

Closed
opened 2018-12-20 01:23:59 +01:00 by Steffen Dünner · 12 comments

System Information
Operating system: Linux Mint 19
Graphics card: nVidia GTX 1080ti

Blender Version
Broken: All 2.80 builds (Buildbot and own builds)
Worked: 2.79

Short description of error
Blender instantly crashes if you use a higher subdivision than 7 with the Multiresolution modifier.

Exact steps for others to reproduce the error

  • Add a cube
  • Add a Multiresolution modifier to the cube
  • Click "Subdivide" at least 8 times to set the subdivision to 8
  • Blender is gone

EDIT:
OK, found it: I had "Simplify" enabled in my startup.blend.
If I uncheck this option all is OK. I can also re-enable it after subdividing the cube 10 times without a crash. It just crashes if Simplify is enabled while subdividing.

**System Information** Operating system: Linux Mint 19 Graphics card: nVidia GTX 1080ti **Blender Version** Broken: All 2.80 builds (Buildbot and own builds) Worked: 2.79 **Short description of error** Blender instantly crashes if you use a higher subdivision than 7 with the Multiresolution modifier. **Exact steps for others to reproduce the error** - Add a cube - Add a Multiresolution modifier to the cube - Click "Subdivide" at least 8 times to set the subdivision to 8 - Blender is gone EDIT: OK, found it: I had "Simplify" enabled in my startup.blend. If I uncheck this option all is OK. I can also re-enable it after subdividing the cube 10 times without a crash. It just crashes if Simplify is enabled while subdividing.

Added subscriber: @SteffenD

Added subscriber: @SteffenD
Member

Added subscriber: @JacquesLucke

Added subscriber: @JacquesLucke
Member

Works fine for me. I can go up to 11, which seems to be Blenders limit but also my RAM limit. How much RAM do you have?
Can you start Blender from the terminal with the --debug option and post the output here?

Works fine for me. I can go up to 11, which seems to be Blenders limit but also my RAM limit. How much RAM do you have? Can you start Blender from the terminal with the `--debug` option and post the output here?

Hmm... for me it happens on 3 completely different computers, both with my own compile and the buildbot versions of 2.80.

2 of the workstation have 64GB of RAM and a 1080ti, one is running Linux Mint the other Win10 x64. The third workstation has "only" 32GB of RAM and a 1080ti as well running Win10.
RAM can't be the cause here I think.

But I think I found something else which needs a bit more investigation on my side. If I load the factory settings before subdividing the cube it works! Now I'm trying to find the setting that causes this.
Must be the same on all 3 systems...

Hmm... for me it happens on 3 completely different computers, both with my own compile and the buildbot versions of 2.80. 2 of the workstation have 64GB of RAM and a 1080ti, one is running Linux Mint the other Win10 x64. The third workstation has "only" 32GB of RAM and a 1080ti as well running Win10. RAM can't be the cause here I think. But I think I found something else which needs a bit more investigation on my side. If I load the factory settings before subdividing the cube it works! Now I'm trying to find the setting that causes this. Must be the same on all 3 systems...

Here's a debug output with the crash:

H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release> .\blender.exe --debug
Switching to fully guarded memory allocator.
Blender 2.80 (sub 39)
Build: 20.12.2018 13:59 Windows
argv[0] = H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\blender.exe
argv[1] = --debug
read file C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend
  Version 280 sub 39 date 2018-12-20 11:37 hash e79f401ffa7d
Read prefs: C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend
read file C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\startup.blend
  Version 280 sub 26 date 2018-10-19 09:29 hash 51b2d06613b
found bundled python: H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\2.80\python
Error   : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FF625145280
Module  : H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\blender.exe
Here's a debug output with the crash: ``` H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release> .\blender.exe --debug Switching to fully guarded memory allocator. Blender 2.80 (sub 39) Build: 20.12.2018 13:59 Windows argv[0] = H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\blender.exe argv[1] = --debug read file C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend Version 280 sub 39 date 2018-12-20 11:37 hash e79f401ffa7d Read prefs: C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend read file C:\Users\Steffen.VR\AppData\Roaming\Blender Foundation\Blender\2.80\config\startup.blend Version 280 sub 26 date 2018-10-19 09:29 hash 51b2d06613b found bundled python: H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\2.80\python Error : EXCEPTION_ACCESS_VIOLATION Address : 0x00007FF625145280 Module : H:\blender28-git\build_windows_Release_x64_vc15_Release\bin\Release\blender.exe ```

OK, next step. It looks like it's not my user settings but my startup file that contains something that the Multiresolution modifier doesn't like.
If I load factory settings, all is OK. If I load factory settings and then manually load my startup.blend the crash is back...

EDIT:
OK, found it: I had "Simplify" enabled in my startup.blend.
If I uncheck this option all is OK. I can also re-enable it after subdividing the cube 10 times without a crash. It just crashes if Simplify is enabled while subdividing.

OK, next step. It looks like it's not my user settings but my startup file that contains something that the Multiresolution modifier doesn't like. If I load factory settings, all is OK. If I load factory settings and then manually load my startup.blend the crash is back... EDIT: OK, found it: I had "Simplify" enabled in my startup.blend. If I uncheck this option all is OK. I can also re-enable it after subdividing the cube 10 times without a crash. It just crashes if Simplify is enabled while subdividing.
Philipp Oeser changed title from Multiresolution Crash to Multiresolution Subdivide Crash with render "Simplify" option 2019-01-15 12:17:37 +01:00

Added subscriber: @mont29

Added subscriber: @mont29

Changed status from 'Confirmed' to: 'Needs User Info'

Changed status from 'Confirmed' to: 'Needs User Info'

I cannot reproduce that here, neither with current master nor with any older 2.8x release.

Please attach here your startup .blend file…

I cannot reproduce that here, neither with current master nor with any older 2.8x release. Please attach here your startup .blend file…
Member

Added subscriber: @Blendify

Added subscriber: @Blendify
Member

Changed status from 'Needs User Info' to: 'Resolved'

Changed status from 'Needs User Info' to: 'Resolved'
Aaron Carlisle self-assigned this 2020-02-10 17:49:06 +01:00
Member

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.
Sign in to join this conversation.
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
4 Participants
Notifications
Due Date
The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: blender/blender#59647
No description provided.