Bake fluid domain simulation crashes when using a depsgraph poll #89011

New Issue

Daniel Grauer · 2021-06-09T23:05:34+02:00

Daniel Grauer commented

2021-06-09 23:05:34 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab
Worked: (newest version of Blender that worked as expected)

Short description of error
When using bpy.context.evaluated_depsgraph_get() in a poll and then baking a fluid blender crashes

Exact steps for others to reproduce the error

use the provided file with a fluid prepared to bake data or create a fluid domain and a fluid source
mantaflow.blend
make sure the chace type is set to modular
run the simple operator script (should come with the blend file)
operator_simple.py
press the bake Data in the Fluid domain settings and blender should crash

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59 **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` Worked: (newest version of Blender that worked as expected) **Short description of error** When using bpy.context.evaluated_depsgraph_get() in a poll and then baking a fluid blender crashes **Exact steps for others to reproduce the error** 1. use the provided file with a fluid prepared to bake data or create a fluid domain and a fluid source [mantaflow.blend](https://archive.blender.org/developer/F10166290/mantaflow.blend) 2. make sure the chace type is set to modular ![image.png](https://archive.blender.org/developer/F10164761/image.png) 3. run the simple operator script (should come with the blend file) [operator_simple.py](https://archive.blender.org/developer/F10164767/operator_simple.py) 4. press the bake Data in the Fluid domain settings and blender should crash ![image.png](https://archive.blender.org/developer/F10164763/image.png)

Daniel Grauer commented

2021-06-09 23:05:34 +02:00

Added subscriber: @DanielGrauer

Richard Antalik commented

2021-06-10 17:52:18 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-06-10 17:52:18 +02:00

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

Richard Antalik commented

2021-06-10 17:52:18 +02:00

I wasn't able to reproduce in 2.92 or 3.0

Please check if this issue exists in latest alpha from https://builder.blender.org/download/daily/
If crash still happens, please run rile blender_debug_log.cmd, redo all steps, and after crash upload files that will be created.

I assume that in step 1 you don't bake domain yet, only in step 4 is that correct?

I wasn't able to reproduce in 2.92 or 3.0 Please check if this issue exists in latest alpha from https://builder.blender.org/download/daily/ If crash still happens, please run rile `blender_debug_log.cmd`, redo all steps, and after crash upload files that will be created. I assume that in step 1 you don't bake domain yet, only in step 4 is that correct?

Pratik Borhade commented

2021-06-10 18:05:29 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-06-10 18:05:29 +02:00

I can't reproduce either with these steps.

System Information

Graphics card : AMD Radeon(TM) 535 ATI Technologies .```

I can't reproduce either with these steps. **System Information** ```Operating system : Windows-10-10.0.18362-SP0 64 Bits Graphics card : AMD Radeon(TM) 535 ATI Technologies .```

Daniel Grauer commented

2021-06-10 23:07:00 +02:00

i adjusted the script so it should resemble more what the addon is doing and should now cause the crash.
With this version all you need to do is load the blend file, run the script and blender should crash.

mantaflow.blend

operator_crash.py

i adjusted the script so it should resemble more what the addon is doing and should now cause the crash. With this version all you need to do is load the blend file, run the script and blender should crash. [mantaflow.blend](https://archive.blender.org/developer/F10166290/mantaflow.blend) [operator_crash.py](https://archive.blender.org/developer/F10166281/operator_crash.py)

Richard Antalik commented

2021-06-14 00:40:02 +02:00

This did trigger assert in BKE_object_eval_assign_data, object_eval->runtime.data_eval wasn't NULL.

This did trigger assert in `BKE_object_eval_assign_data`, `object_eval->runtime.data_eval` wasn't NULL.

Richard Antalik commented

2021-06-14 00:40:42 +02:00

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

kursad k commented

2021-06-16 20:15:05 +02:00

Added subscriber: @kursadk

kursad k commented

2021-06-16 20:15:05 +02:00

I can reproduce this issue with the Gob add-on ( which seems to use the mentioned depsgraph function) enabled. Disabling the add-on resolves the crash issue during bake.

Dalai Felinto commented

2022-05-09 15:25:17 +02:00

Added subscriber: @dfelinto

Dalai Felinto commented

2022-05-09 15:25:17 +02:00

Thanks for the report. Marking this as known issue since it depends on the old particle settings which is end of life .

Thanks for the report. Marking this as known issue since it depends on the [old particle settings which is end of life ](https://developer.blender.org/tag/nodes_physics/).

Philipp Oeser removed the

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Bake fluid domain simulation crashes when using a depsgraph poll #89011