Some Grease Pencil operators cause segfaults when run from the console #94439

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Fen · 2021-12-28T15:19:42+01:00

Fen commented

2021-12-28 15:19:42 +01:00

System Information
Operating system: macOS-12.1-arm64-arm-64bit 64 Bits
Graphics card: Apple M1 Pro Apple 4.1 Metal - 76.3

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: f1cca30557
Worked: N/A

Short description of error
Several Grease Pencil operators can cause Blender to crash when run from the console, in various conditions.

This is not a high-priority problem, since this requires you to be poking around in the console, but it probably shouldn't crash anyway (:

Exact steps for others to reproduce the error
The following operators cause a segfault if run in Object Mode with nothing selected:

bpy.ops.gpencil.bake_mesh_animation

The following operators cause a segfault if run with a Grease Pencil object selected in Object Mode:

bpy.ops.gpencil.layer_change
bpy.ops.gpencil.segment_add
bpy.ops.gpencil.segment_move
bpy.ops.gpencil.segment_remove

You can try this out for yourself with the following file. Uncomment entries in bad_names to allow them to be executed by the script.

Grease Pencil.blend

In all cases, I ran the operator without any arguments. Thus, it used the default properties for each operator.

A debug/developer build reports null pointer dereferences for all cases, from what I've seen.

**System Information** Operating system: macOS-12.1-arm64-arm-64bit 64 Bits Graphics card: Apple `M1` Pro Apple 4.1 Metal - 76.3 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `f1cca30557` Worked: N/A **Short description of error** Several Grease Pencil operators can cause Blender to crash when run from the console, in various conditions. This is *not* a high-priority problem, since this requires you to be poking around in the console, but it probably shouldn't crash anyway (: **Exact steps for others to reproduce the error** The following operators cause a segfault if run in Object Mode with nothing selected: * `bpy.ops.gpencil.bake_mesh_animation` The following operators cause a segfault if run with a Grease Pencil object selected in Object Mode: * `bpy.ops.gpencil.layer_change` * `bpy.ops.gpencil.segment_add` * `bpy.ops.gpencil.segment_move` * `bpy.ops.gpencil.segment_remove` You can try this out for yourself with the following file. Uncomment entries in `bad_names` to allow them to be executed by the script. [Grease Pencil.blend](https://archive.blender.org/developer/F12779070/Grease_Pencil.blend) In all cases, I ran the operator without any arguments. Thus, it used the default properties for each operator. A debug/developer build reports null pointer dereferences for all cases, from what I've seen.

Fen commented

2021-12-28 15:19:42 +01:00

Added subscriber: @chemicalcrux

Antonio Vazquez self-assigned this 2021-12-28 15:55:25 +01:00

Antonio Vazquez commented

2021-12-28 16:04:01 +01:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'