Blender crashes when baking rigid and cloth physics #83587

New Issue

Tobiasz Karoń · 2020-12-09T13:19:24+01:00

Tobiasz Karoń commented

2020-12-09 13:19:24 +01:00

System Information
Operating system: Manajro Linux
Graphics card: Radeon RX 5500/5500M / Pro 5500M

Blender Version
Broken: official stable 2.91.0 (hash: b50598bc78)
Worked: ?

Blender crashes when baking rigid body and cloth physics.

Exact steps for others to reproduce the error
Unfortunately I can't provide the exact project, as it's client property, and trying to simplify the project makes this particular bug go away.

I am attaching a full GDB output from the reproduction of this crash:

blender gdb.txt

**System Information** Operating system: Manajro Linux Graphics card: Radeon RX 5500/5500M / Pro 5500M **Blender Version** Broken: official stable 2.91.0 (hash: b50598bc78c7) Worked: ? Blender crashes when baking rigid body and cloth physics. **Exact steps for others to reproduce the error** Unfortunately I can't provide the exact project, as it's client property, and trying to simplify the project makes this particular bug go away. I am attaching a full GDB output from the reproduction of this crash: [blender gdb.txt](https://archive.blender.org/developer/F9497073/blender_gdb.txt)

Tobiasz Karoń commented

2020-12-09 13:19:24 +01:00

Added subscriber: @TobiaszunfaKaron

Robert Guetzkow commented

2020-12-09 13:35:58 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-12-09 13:35:58 +01:00

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

Robert Guetzkow commented

2020-12-09 13:35:58 +01:00

The debug log has the LLVM error as also present in #83488 and additionally a dependency cycle in the rig.

Could you please download the official build of Blender 2.91 and extract it. Then run Blender from the terminal with the following flags:

./blender --debug --debug-cycles > ~/blender_debug_output.txt 2>&1

This will start Blender in debug mode. Try to make it crash again. Please upload the blender_debug_output.txt and the crash log that should be found in /tmp if Blender is able to write it.

Please note that we do need instructions to reproduce this on our system. If you can provide a minimal example file that still crashes, that would be great.

The debug log has the LLVM error as also present in #83488 and additionally a dependency cycle in the rig. Could you please download the [official build of Blender 2.91 ](https://download.blender.org/release/Blender2.91/) and extract it. Then run Blender from the terminal with the following flags: `./blender --debug --debug-cycles > ~/blender_debug_output.txt 2>&1` This will start Blender in debug mode. Try to make it crash again. Please upload the `blender_debug_output.txt` and the crash log that should be found in `/tmp` if Blender is able to write it. Please note that we do need instructions to reproduce this on our system. If you can provide a minimal example file that still crashes, that would be great.

Tobiasz Karoń commented

2020-12-09 18:15:51 +01:00

Thank you - I've got the Linux build you've pointed me to and opened the problematic project, but I can't reproduce the crash with it.

However the physics simulations went completely crazy:

I'll let know if I find anything more.
I'm in the process of re-making this project from near scratch to solve the issues with unstable physics.

Thank you - I've got the Linux build you've pointed me to and opened the problematic project, but I can't reproduce the crash with it. However the physics simulations went completely crazy: ![image.png](https://archive.blender.org/developer/F9497410/image.png) I'll let know if I find anything more. I'm in the process of re-making this project from near scratch to solve the issues with unstable physics.

Tobiasz Karoń commented

2020-12-10 10:40:45 +01:00

I've got two crash logs, I am afraid they might not be complete - for some reason it didn't crash when in debug mode.
I'll try again, maybe it's gonna happen.

Sh_024 36.crash.txt

Sh_024 35.crash.txt

I've got two crash logs, I am afraid they might not be complete - for some reason it didn't crash when in debug mode. I'll try again, maybe it's gonna happen. [Sh_024 36.crash.txt](https://archive.blender.org/developer/F9499772/Sh_024_36.crash.txt) [Sh_024 35.crash.txt](https://archive.blender.org/developer/F9499771/Sh_024_35.crash.txt)

Tobiasz Karoń commented

2020-12-10 10:42:55 +01:00

Got it!

blender_debug_output.txt

Got it! [blender_debug_output.txt](https://archive.blender.org/developer/F9499782/blender_debug_output.txt)

Robert Guetzkow commented

2020-12-10 11:07:00 +01:00

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

Richard Antalik commented

2020-12-11 20:00:12 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-12-11 20:00:12 +01:00

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

Richard Antalik commented

2020-12-11 20:00:12 +01:00

Unfortunately there is not enough information for us to reproduce and fix the problem.

Check if your file has any corrupted meshes by running C.object.data.validate(verbose=True) in console. Result False means no corrupted meshes.

If your file can't be simplified, there is nothing we can do really.

Unfortunately there is not enough information for us to reproduce and fix the problem. Check if your file has any corrupted meshes by running `C.object.data.validate(verbose=True)` in console. Result False means no corrupted meshes. If your file can't be simplified, there is nothing we can do really.

Robert Guetzkow commented

2021-01-01 14:36:30 +01:00

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

Robert Guetzkow closed this issue

2021-01-01 14:36:30 +01:00

Robert Guetzkow commented

2021-01-01 14:36:30 +01:00

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.

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Blender crashes when baking rigid and cloth physics #83587