Library Override - Custom Property to Drive Child Particles results in Crash #80457

New Issue

Sacha Goedegebure · 2020-09-04T09:07:37+02:00

Sacha Goedegebure commented

2020-09-04 09:07:37 +02:00

System Information
Operating system: Windows-10-10.0.17134-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92

Blender Version
Broken: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: 0330d1af29
Worked: not so much 'worked', but it didn't crash in 2.83

Short description of error
A custom property on an armature bone drives the amount of children particles on an object. Linking the collection of object and armature, and using Library Override will result in a crash when entering Pose Mode.

Exact steps for others to reproduce the error

Start new blend file
Link in collection 'Hairball' from attached blend file 'CustomPropery_ChildrenParticles'
go to menu Object->Relations->Make Library Override
select the armature object, enter pose mode & select the bone
Crash

CustomPropery_ChildrenParticles.blend

**System Information** Operating system: Windows-10-10.0.17134-SP0 64 Bits Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.92 **Blender Version** Broken: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: `0330d1af29` Worked: not so much 'worked', but it didn't crash in 2.83 **Short description of error** A custom property on an armature bone drives the amount of children particles on an object. Linking the collection of object and armature, and using Library Override will result in a crash when entering Pose Mode. **Exact steps for others to reproduce the error** 1) Start new blend file 2) Link in collection 'Hairball' from attached blend file 'CustomPropery_ChildrenParticles' 3) go to menu Object->Relations->Make Library Override 4) select the armature object, enter pose mode & select the bone Crash [CustomPropery_ChildrenParticles.blend](https://archive.blender.org/developer/F8839210/CustomPropery_ChildrenParticles.blend)

Sacha Goedegebure commented

2020-09-04 09:07:37 +02:00

Added subscriber: @SachaGoedegebure

Richard Antalik commented

2020-09-11 04:16:12 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-09-11 04:16:12 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Richard Antalik commented

2020-09-11 04:16:12 +02:00

Exception thrown: read access violation. C was nullptr.

>	blender.exe!CTX_py_dict_get(const bContext * C) Line 227	C

 	blender.exe!rna_property_override_diff_propptr_validate_diffing(PointerRNA * propptr_a, PointerRNA * propptr_b, const bool no_ownership, const bool no_prop_name, bool * r_is_id, bool * r_is_null, bool * r_is_type_diff, unsigned char * * r_propname_a, unsigned char * propname_a_buff, unsigned __int64 propname_a_buff_size, unsigned char * * r_propname_b, unsigned char * propname_b_buff, unsigned __int64 propname_b_buff_size) Line 1192	C
 	blender.exe!rna_property_override_diff_default(Main * bmain, PropertyRNAOrID * prop_a, PropertyRNAOrID * prop_b, const int mode, IDOverrideLibrary * override, const unsigned char * rna_path, const unsigned __int64 rna_path_len, const int flags, bool * r_override_changed) Line 1782	C
 	[Inline Frame] blender.exe!rna_property_override_diff(Main *) Line 346	C
 	blender.exe!RNA_struct_override_matches(Main * bmain, PointerRNA * ptr_local, PointerRNA * ptr_reference, const unsigned char * root_path, const unsigned __int64 root_path_len, IDOverrideLibrary * override, const eRNAOverrideMatch flags, eRNAOverrideMatchResult * r_report_flags) Line 706	C
 	blender.exe!BKE_lib_override_library_operations_create(Main * bmain, ID * local) Line 1314	C
 	[External Code]	
 	[Inline Frame] blender.exe!tbb::interface7::internal::isolate_impl(const Task::()::__l2::<lambda_4c4e9cab0012cf46ce574e5cf4859202> &) Line 160	C++
 	[Inline Frame] blender.exe!tbb::interface7::this_task_arena::isolate(const Task::()::__l2::<lambda_4c4e9cab0012cf46ce574e5cf4859202> &) Line 395	C++
 	[Inline Frame] blender.exe!Task::operator()() Line 118	C++
 	blender.exe!tbb::internal::function_task<Task>::execute() Line 1048	C++
 	[External Code]	
 	[Inline Frame] blender.exe!tbb::task::wait_for_all() Line 809	C++
 	blender.exe!tbb::internal::task_group_base::wait() Line 168	C++
 	blender.exe!BKE_lib_override_library_main_operations_create(Main * bmain, const bool force_auto) Line 1376	C
 	blender.exe!BKE_undosys_step_push_with_type(UndoStack * ustack, bContext * C, const unsigned char * name, const UndoType * ut) Line 512	C
 	blender.exe!BKE_undosys_step_push(UndoStack * ustack, bContext * C, const unsigned char * name) Line 595	C
 	blender.exe!ED_undo_push(bContext * C, const unsigned char * str) Line 117	C
 	blender.exe!wm_operator_finished(bContext * C, wmOperator * op, const bool repeat, const bool store) Line 946	C
 	blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1338	C
 	blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2132	C
 	blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2442	C
 	blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2739	C
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2951	C
 	blender.exe!wm_event_do_handlers(bContext * C) Line 3367	C
 	blender.exe!WM_main(bContext * C) Line 485	C
 	blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 531	C
 	[External Code]

`Exception thrown: read access violation. C was nullptr.` ``` > blender.exe!CTX_py_dict_get(const bContext * C) Line 227 C blender.exe!rna_property_override_diff_propptr_validate_diffing(PointerRNA * propptr_a, PointerRNA * propptr_b, const bool no_ownership, const bool no_prop_name, bool * r_is_id, bool * r_is_null, bool * r_is_type_diff, unsigned char * * r_propname_a, unsigned char * propname_a_buff, unsigned __int64 propname_a_buff_size, unsigned char * * r_propname_b, unsigned char * propname_b_buff, unsigned __int64 propname_b_buff_size) Line 1192 C blender.exe!rna_property_override_diff_default(Main * bmain, PropertyRNAOrID * prop_a, PropertyRNAOrID * prop_b, const int mode, IDOverrideLibrary * override, const unsigned char * rna_path, const unsigned __int64 rna_path_len, const int flags, bool * r_override_changed) Line 1782 C [Inline Frame] blender.exe!rna_property_override_diff(Main *) Line 346 C blender.exe!RNA_struct_override_matches(Main * bmain, PointerRNA * ptr_local, PointerRNA * ptr_reference, const unsigned char * root_path, const unsigned __int64 root_path_len, IDOverrideLibrary * override, const eRNAOverrideMatch flags, eRNAOverrideMatchResult * r_report_flags) Line 706 C blender.exe!BKE_lib_override_library_operations_create(Main * bmain, ID * local) Line 1314 C [External Code] [Inline Frame] blender.exe!tbb::interface7::internal::isolate_impl(const Task::()::__l2::<lambda_4c4e9cab0012cf46ce574e5cf4859202> &) Line 160 C++ [Inline Frame] blender.exe!tbb::interface7::this_task_arena::isolate(const Task::()::__l2::<lambda_4c4e9cab0012cf46ce574e5cf4859202> &) Line 395 C++ [Inline Frame] blender.exe!Task::operator()() Line 118 C++ blender.exe!tbb::internal::function_task<Task>::execute() Line 1048 C++ [External Code] [Inline Frame] blender.exe!tbb::task::wait_for_all() Line 809 C++ blender.exe!tbb::internal::task_group_base::wait() Line 168 C++ blender.exe!BKE_lib_override_library_main_operations_create(Main * bmain, const bool force_auto) Line 1376 C blender.exe!BKE_undosys_step_push_with_type(UndoStack * ustack, bContext * C, const unsigned char * name, const UndoType * ut) Line 512 C blender.exe!BKE_undosys_step_push(UndoStack * ustack, bContext * C, const unsigned char * name) Line 595 C blender.exe!ED_undo_push(bContext * C, const unsigned char * str) Line 117 C blender.exe!wm_operator_finished(bContext * C, wmOperator * op, const bool repeat, const bool store) Line 946 C blender.exe!wm_operator_invoke(bContext * C, wmOperatorType * ot, wmEvent * event, PointerRNA * properties, ReportList * reports, const bool poll_only, bool use_last_properties) Line 1338 C blender.exe!wm_handler_operator_call(bContext * C, ListBase * handlers, wmEventHandler * handler_base, wmEvent * event, PointerRNA * properties, const unsigned char * kmi_idname) Line 2132 C blender.exe!wm_handlers_do_keymap_with_keymap_handler(bContext * C, wmEvent * event, ListBase * handlers, wmEventHandler_Keymap * handler, wmKeyMap * keymap, const bool do_debug_handler) Line 2442 C blender.exe!wm_handlers_do_intern(bContext * C, wmEvent * event, ListBase * handlers) Line 2739 C blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 2951 C blender.exe!wm_event_do_handlers(bContext * C) Line 3367 C blender.exe!WM_main(bContext * C) Line 485 C blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 531 C [External Code] ```

blender-admin commented

2020-09-14 10:28:31 +02:00

This issue was referenced by f822cd511c

This issue was referenced by f822cd511c2314420aa225cf2fc245032b2c4953

blender-admin commented

2020-09-14 10:28:31 +02:00

This issue was referenced by bcacd98a6a

This issue was referenced by bcacd98a6a9346c9e47ef29bd1f85ac2bb408f4c

blender-admin commented

2020-09-14 10:28:31 +02:00

This issue was referenced by ec42daf630

This issue was referenced by ec42daf63020010f98ef2ff1faed2fa586a68df9

Bastien Montagne self-assigned this 2020-09-14 10:29:18 +02:00

Bastien Montagne commented

2020-09-14 10:34:03 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2020-09-14 10:34:03 +02:00

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Library Override - Custom Property to Drive Child Particles results in Crash #80457