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Maniphest T58928

New Action causes crash when duplicating bone
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Description

System Information
Operating system: Windows 10 64-bit
Graphics card: Geforce GTX 1080

Blender Version
Broken: 2.80 beta, 606223f6a61, blender2.8, 2018-12-07
Worked: 2.79b

Short description of error
When creating a simple script, trying to open or access a generated animation Action causes Blender to crash if you duplicate a bone from Edit Mode in the same script.
Trying to open this new action in the Action Editor immediately crashes Blender.

This small script replicates the crash:

import bpy

bpy.ops.armature.duplicate()
bpy.data.actions.new("Action")

Exact steps for others to reproduce the error

blender_bug.blend588 KBDownload

Run the script in Edit Mode.
Then try to browse to the new Action in the Action Editor.

Revisions and Commits

rB Blender
rB9fa408f51b70 Fix T58928: New Action causes crash when duplicating bone

Related Objects

Event Timeline

Terrell (GameDragon) created this task.Dec 7 2018, 1:20 PM
Philipp Oeser (lichtwerk) assigned this task to Sergey Sharybin (sergey).Dec 10 2018, 10:07 AM
Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 50.
Philipp Oeser (lichtwerk) added subscribers: Sergey Sharybin (sergey), Philipp Oeser (lichtwerk).

Confirmed.

Asserts here
BLI_assert(pchan_index < MEM_allocN_len(pose->chan_array) / sizeof(bPoseChannel *));

1  raise							0x7ffff466a53f 
2  abort							0x7ffff4654895 
3  pose_pchan_get_indexed					armature_update.c 583 0x29c0f70      
4  BKE_pose_eval_bone						armature_update.c 644 0x29c0f70      
5  std::__invoke_impl<void, void ( *&)(Depsgraph *, Scene *, Object *, int), Depsgraph *, Scene *&, Object *&, int&>	invoke.h          60  0x2f383e7      
6  std::__invoke<void ( *&)(Depsgraph *, Scene *, Object *, int), Depsgraph *, Scene *&, Object *&, int&>                                                                                                                        invoke.h          95  0x2f38106      
7  std::_Bind<void ( *(std::_Placeholder<1>, Scene *, Object *, int))(Depsgraph *, Scene *, Object *, int)>::__call<void, Depsgraph *&&, 0ul, 1ul, 2ul, 3ul>(std::tuple<Depsgraph *&&>&&, std::_Index_tuple<0ul, 1ul, 2ul, 3ul>) functional        400 0x2f37dd6      
8  std::_Bind<void ( *(std::_Placeholder<1>, Scene *, Object *, int))(Depsgraph *, Scene *, Object *, int)>::operator()<Depsgraph *, void>(Depsgraph *&&) 	functional        484 0x2f3796f      
9  std::_Function_handler<void (Depsgraph *), std::_Bind<void ( *(std::_Placeholder<1>, Scene *, Object *, int))(Depsgraph *, Scene *, Object *, int)>>::_M_invoke(std::_Any_data const&, Depsgraph *&&) 	std_function.h    297 0x2f374a7      
10 std::function<void (Depsgraph *)>::operator()(Depsgraph *) const		std_function.h    687 0x2f456af      
11 DEG::deg_task_run_func							deg_eval.cc       95  0x2f44d61

Maybe @Sergey Sharybin (sergey) could check on this one?

Sergey Sharybin (sergey) changed the task status from Unknown Status to Resolved by committing rB9fa408f51b70: Fix T58928: New Action causes crash when duplicating bone.Dec 10 2018, 4:07 PM
Sergey Sharybin (sergey) added a commit: rB9fa408f51b70: Fix T58928: New Action causes crash when duplicating bone.