Random crashes with NVidia + GPU Subdivision (sometimes when activating X-Ray or Wireframe overlay) #100620
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Reference: blender/blender#100620
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System Information
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Blender Version
Broken: version: 3.2.2, branch: master, commit date: 2022-08-02 18:15, hash:
bcfdb14560Worked: (newest version of Blender that worked as expected)
Short description of error
On some seemingly random occasions, Blender crashes with the following stack:
Occasions observed:
intro.crash.txt
Exact steps for others to reproduce the error
It happens specially when working fast.
BLENDER_Youre_Alive_v67.blend
Added subscriber: @GabrielMoro
#103834 was marked as duplicate of this issue
#104049 was marked as duplicate of this issue
#101747 was marked as duplicate of this issue
#103145 was marked as duplicate of this issue
#103030 was marked as duplicate of this issue
#101229 was marked as duplicate of this issue
#101115 was marked as duplicate of this issue
#100600 was marked as duplicate of this issue
Added subscriber: @PratikPB2123
Changed status from 'Needs Triage' to: 'Needs User Info'
Thanks for the report. I'm not able to replicate the crash. Textures are missing from your file. Please pack them and re-upload the file:
Also send us crash logs: https://docs.blender.org/manual/en/dev/troubleshooting/crash.html#crash-log
The file got big, sorry about that. I have some different crash reports all while working on the same files (just different versions). I think this might be related to the HardOps Addon but I'm not 100% sure.
BLENDER_Youre_Alive_v67_5140_autosave.blend
BLENDER_Youre_Alive_v67.crash.txt
BLENDER_Youre_Alive_v69.crash.txt
BLENDER_Youre_Alive_v64.crash.txt
BLENDER_Youre_Alive_v57.crash.txt
BLENDER_Youre_Alive_v65.crash.txt
Thanks for the files. I've not tested this locally yet but can you check if crash is avoidable by disabling the GPU Subdivision?: {nav Edit > Preferences > Viewport > Subdivision > GPU Subdivision}
Same suggestion for #100600
And also check in latest 3.3 build (With & without GPU Subdiv): https://builder.blender.org/download/daily
So I've been working with the GPU disabled now (and HardOps reactivated). No crashes since then, so it might be indeed related. Still have to try on 3.3 with GPU Subd on though. Thanks for the suggestion!
Unable to reproduce the crash in attached file
The crash is still happening on 3.3 when GPU Subdivision is on. It didn't happen on my https://developer.blender.org/T100600 report that was also (probably) due to the GPU Subdivision.
BLENDER_Youre_Alive_v99.crash.txt
Changed status from 'Needs User Info' to: 'Needs Triage'
Added subscriber: @mano-wii
Changed status from 'Needs Triage' to: 'Needs User Info'
Are there any steps we can try to reproduce the bug?
We know the crash is due to GPU Subdivision because of the stack trace. But we don't know why it's crashing, and it's possible it's a GPU driver issue.
Added subscribers: @OmarEmaraDev, @ideasman42, @lichtwerk
Added subscriber: @STYXtheMUTT
Crash when activating X-Ray or Wireframe overlayto Random crashes with NVidia + GPU Subdivision (sometimes when activating X-Ray or Wireframe overlay)Changed status from 'Needs User Info' to: 'Confirmed'
Added subscriber: @Jojolix
Added subscriber: @Jeroen-Bakker
Assigning to me, to check if we are able to reproduce the error. It might be windows/NVIDIA specific, but takes time to identify.
Added subscriber: @sanek2005
This is definitely not a Windows-only bug. I have Ubuntu and Nvidia, I also sometimes caught random crashes when switching X ray and even when switching between solid/wireframe modes. GPU Subdivision was enabled
Changed status from 'Confirmed' to: 'Needs User Info'
I haven't been able to reproduce, and on the stacktrace alone I cannot detect any issues.
Blender crashes on different locations, sometimes during freeing, sometimes when creating (loose edges)
Can someone use a debug build perhaps it gives more information that leads to the error. Even better would be an ASAN build...
I triggered the buildbot to generate debug builds for blender v3.4 but they will only be available for download today due to disk size restrictions.
Added subscribers: @target, @mod_moder
Added subscriber: @ColorsOfRain-2
Added subscribers: @MassimilianoPuliero, @ThomasDinges, @The5
Added subscriber: @Ailex
Added subscriber: @tijmi
I wonder if
4d3bfb3f4perhaps happened to fix this. I haven't checked, but with these traces I suspect the crash could be caused by a race condition due to insufficient locking between CPU and GPU subdividers when fighting over the cache slot. That commit separates the cache slots between CPU and GPU for performance reasons, but it would also fix the race.Marking this as a normal priority known issue as we are not able to reproduce it in a reliable manner. Without a reliable way tracking, narrowing down the issue is hard.
Cant reproduce
NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.95
I also don't notice any crashes yet, even though I switch wireframe quite actively when weight painting. But it seems to me that our observations are still few, much longer testing is needed
Ubuntu 20.04, Geforce MX230
Yes, more testing is needed. I'm completely sure I have the same issue, but I also experience instant crashes to the desktop in Blender. It used to be just switching wireframe, X-ray, solid view modes, but now it happens for pretty much anything. The longest I've gone in recent memory is 4 weeks between crashes. I run Windows 10 with a 2070 GPU.
My issue thread: #101696
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.01
Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash:
d0dd92834a08GPU-subdiv is enabled.
Blender crashed. Worked in X-ray+wireframe mode. Moved the vertices with a snap
This has been reported many times so I'm marking this as confirmed for now.
But we're still missing the steps to redo the crash locally.
Feel free to reset the status though :)