Crash when scrubbing the timeline when using the line art modifier #106345

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opened 2023-03-30 23:49:38 +02:00 by Karl Northfell · 5 comments

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.41

Blender Version
Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: 1be25cfff18b
Worked: 3.4.1

Short description of error
When scrubbing the timeline, blender will crash. This happens frequently when I have a project of sufficient complexity that uses the line art modifier. The provided blend file has been simplified as much as possible while still reproducing the crashing behavior.

Exact steps for others to reproduce the error

  1. Open line_art_crash.blend
  2. Scrub the timeline. Jumping between frames makes it less likely to crash, but holding onto the playhead and slowly moving should have it crash in a few seconds.
**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.41 **Blender Version** Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: `1be25cfff18b` Worked: 3.4.1 **Short description of error** When scrubbing the timeline, blender will crash. This happens frequently when I have a project of sufficient complexity that uses the line art modifier. The provided blend file has been simplified as much as possible while still reproducing the crashing behavior. **Exact steps for others to reproduce the error** 1. Open line_art_crash.blend 2. Scrub the timeline. Jumping between frames makes it less likely to crash, but holding onto the playhead and slowly moving should have it crash in a few seconds.
Karl Northfell added the
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labels 2023-03-30 23:49:39 +02:00
Iliya Katushenock added the
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Grease Pencil
label 2023-03-31 08:31:21 +02:00
YimingWu added
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labels 2023-03-31 10:50:19 +02:00
Member

Hi, can you give us a file with a bit more complexity? After playing with your file for a while I still can't replicate the crash.

The current line art has some hacks on its implementation to adapt with Blender's backend, which may cause crashes, it's planned to fix this in the node version of line art.

Meanwhile you could try: Setting Performance->Thread count to fixed 1 (under cycles, line art uses that value too), and see if it still crashes.

Hi, can you give us a file with a bit more complexity? After playing with your file for a while I still can't replicate the crash. The current line art has some hacks on its implementation to adapt with Blender's backend, which may cause crashes, it's planned to fix this in the node version of line art. Meanwhile you could try: Setting Performance->Thread count to fixed 1 (under cycles, line art uses that value too), and see if it still crashes.
Author

Thanks for looking into this! I've attached the full file I'm working on. It's still sort of inconsistent, but on the "main" view layer I can get it to crash pretty reliably in solid and rendered mode by slowly scrolling the timeline back and forth the full length holding the play head. Strangely on the "all" view layer which shows everything, I can't get it to crash.

I tried the performance change but unfortunately it did not seem to prevent it crashing.

Thanks for looking into this! I've attached the full file I'm working on. It's still sort of inconsistent, but on the "main" view layer I can get it to crash pretty reliably in solid and rendered mode by slowly scrolling the timeline back and forth the full length holding the play head. Strangely on the "all" view layer which shows everything, I can't get it to crash. I tried the performance change but unfortunately it did not seem to prevent it crashing.
Thomas Dinges added
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labels 2023-05-12 15:11:47 +02:00
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I also cannot get it to crash.

Do you get crash logs? https://docs.blender.org/manual/en/3.5/troubleshooting/crash.html#crash-log

I also cannot get it to crash. Do you get crash logs? https://docs.blender.org/manual/en/3.5/troubleshooting/crash.html#crash-log
Philipp Oeser added
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labels 2023-05-30 18:20:43 +02:00
Author

I tried it just now with 3.5.1 and was able to get it to crash, I've attached the crash log.

I tried it just now with 3.5.1 and was able to get it to crash, I've attached the crash log.
Member

I can periodically trigger the crash now.

segfault in BKE_object_has_geometry_set_instances in if (component->is_empty()).

@JacquesLucke What do you think of this? Could this be a threading issue where component->is_empty() is called on a freed memory?

typeinfo for std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2> (Unknown Source:0)
BKE_object_has_geometry_set_instances(const Object * ob) (/home/yiming/Downloads/BlenderMain/blender/source/blender/blenkernel/intern/geometry_set.cc:715)
BKE_object_visibility(const Object * ob, const int dag_eval_mode) (/home/yiming/Downloads/BlenderMain/blender/source/blender/blenkernel/intern/object.cc:2123)
(anonymous namespace)::deg_iterator_objects_step(DEGObjectIterData * data) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:265)
DEG_iterator_objects_next(BLI_Iterator * iter) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:347)
DEG_iterator_objects_begin(BLI_Iterator * iter, DEGObjectIterData * data) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:332)
lineart_main_load_geometries(Depsgraph * depsgraph, Scene * scene, Object * camera, LineartData * ld, bool allow_duplicates, bool do_shadow_casting, ListBase * shadow_elns) (/home/yiming/Downloads/BlenderMain/blender/source/blender/gpencil_modifiers_legacy/intern/lineart/lineart_cpu.cc:2598)
...
I can periodically trigger the crash now. segfault in `BKE_object_has_geometry_set_instances` in `if (component->is_empty())`. @JacquesLucke What do you think of this? Could this be a threading issue where `component->is_empty()` is called on a freed memory? ``` typeinfo for std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2> (Unknown Source:0) BKE_object_has_geometry_set_instances(const Object * ob) (/home/yiming/Downloads/BlenderMain/blender/source/blender/blenkernel/intern/geometry_set.cc:715) BKE_object_visibility(const Object * ob, const int dag_eval_mode) (/home/yiming/Downloads/BlenderMain/blender/source/blender/blenkernel/intern/object.cc:2123) (anonymous namespace)::deg_iterator_objects_step(DEGObjectIterData * data) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:265) DEG_iterator_objects_next(BLI_Iterator * iter) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:347) DEG_iterator_objects_begin(BLI_Iterator * iter, DEGObjectIterData * data) (/home/yiming/Downloads/BlenderMain/blender/source/blender/depsgraph/intern/depsgraph_query_iter.cc:332) lineart_main_load_geometries(Depsgraph * depsgraph, Scene * scene, Object * camera, LineartData * ld, bool allow_duplicates, bool do_shadow_casting, ListBase * shadow_elns) (/home/yiming/Downloads/BlenderMain/blender/source/blender/gpencil_modifiers_legacy/intern/lineart/lineart_cpu.cc:2598) ... ```
YimingWu added
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labels 2023-05-31 05:17:42 +02:00
YimingWu self-assigned this 2023-05-31 05:20:50 +02:00
YimingWu added the
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Reference: blender/blender#106345
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