Blender crashes when merging mesh.vertices with a python script #88022

New Issue

Alejandro Gonzalvo · 2021-05-04T11:59:09+02:00

Alejandro Gonzalvo commented

2021-05-04 11:59:09 +02:00

System Information
Operating system: Pop_OS 20.04
Graphics card: Intel 4th Generation Core Proc

Blender Version
Broken: 2.82a

Short description of error
Link to stackoverflow question:

https://stackoverflow.com/questions/67382479/blender-crashes-when-merging-mesh-vertices-with-a-python-script

I have reuploaded the question here because I think It could be an error with blender code rather than mine. The steps to reproduce the crash would be creating an icosphere mesh, setting the max_distance variable to 0.3 and just moving nodes nearby to other ones and clicking run_script then. At some point it will close and save an ico.crash.txt. I have attached mine.

ico.crash.txt

#88022.blend

#88022.webm

**System Information** Operating system: Pop_OS 20.04 Graphics card: Intel 4th Generation Core Proc **Blender Version** Broken: 2.82a **Short description of error** Link to stackoverflow question: https://stackoverflow.com/questions/67382479/blender-crashes-when-merging-mesh-vertices-with-a-python-script I have reuploaded the question here because I think It could be an error with blender code rather than mine. The steps to reproduce the crash would be creating an icosphere mesh, setting the max_distance variable to 0.3 and just moving nodes nearby to other ones and clicking run_script then. At some point it will close and save an ico.crash.txt. I have attached mine. [ico.crash.txt](https://archive.blender.org/developer/F10052697/ico.crash.txt) [#88022.blend](https://archive.blender.org/developer/F10056572/T88022.blend) [#88022.webm](https://archive.blender.org/developer/F10056574/T88022.webm)

Alejandro Gonzalvo commented

2021-05-04 11:59:09 +02:00

Added subscriber: @alejandrogonzalvo

Philipp Oeser commented

2021-05-06 16:49:39 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-05-06 16:49:39 +02:00

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

Philipp Oeser commented

2021-05-06 16:49:39 +02:00

Can confirm a crash here.

There might be something wrong with the script (havent checked in depth), but would be good by the Python or Modeling module to check.

Two different stacktraces:

1   bm_face_create_from_mpoly   bmesh_mesh_convert.c 172  0x3d3369d 
2   BM_mesh_bm_from_me          bmesh_mesh_convert.c 414  0x3d3481c 
3   BKE_mesh_to_bmesh_ex        mesh.c               1014 0x3650fcd 
4   BKE_mesh_to_bmesh           mesh.c               1024 0x3651062 
5   EDBM_mesh_make              editmesh_utils.c     311  0x486feb2 
6   ED_object_editmode_enter_ex object_edit.c        793  0x493558e 
7   editmode_toggle_exec        object_edit.c        888  0x493590e 
8   wm_operator_invoke          wm_event_system.c    1362 0x3bbd606 
9   wm_operator_call_internal   wm_event_system.c    1557 0x3bbdc42 
10  WM_operator_name_call_ptr   wm_event_system.c    1605 0x3bbde3f 
11  ED_object_mode_set_ex       object_modes.c       222  0x493dd4f 
12  object_mode_set_exec        object_edit.c        1677 0x493768f 
13  wm_operator_invoke          wm_event_system.c    1362 0x3bbd606 
14  wm_operator_call_internal   wm_event_system.c    1591 0x3bbdda8 
15  WM_operator_call_py         wm_event_system.c    1663 0x3bbe01f 
16  pyop_call                   bpy_operator.c       285  0x45c07a5 
17  cfunction_call              methodobject.c       548  0xdf63b34 
18  _PyObject_MakeTpCall        call.c               191  0xdf25830 
19  _PyObject_VectorcallTstate  abstract.h           116  0x35ac429 
20  _PyObject_VectorcallTstate  abstract.h           103  0x35ac429 
... <More>

1   add_newell_cross_v3_v3v3                                                                                                                                                                                                                                                                  math_vector_inline.c 969  0x365531d 
2   mesh_calc_ngon_normal                                                                                                                                                                                                                                                                     mesh_evaluate.c      2178 0x365ab45 
3   BKE_mesh_calc_poly_normal                                                                                                                                                                                                                                                                 mesh_evaluate.c      2193 0x365abe7 
4   mesh_calc_normals_poly_cb                                                                                                                                                                                                                                                                 mesh_evaluate.c      225  0x3655c23 
5   RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1}::operator()() const                                                                                                                                                                                             task_range.cc        97   0xfee16f8 
6   tbb::interface7::internal::delegated_function<RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const, void>::operator()() const                                                                                                                                  task_arena.h         96   0xfee2556 
7   tbb::interface7::internal::isolate_within_arena(tbb::interface7::internal::delegate_base&, long)                                                                                                                                                                                                                    0x3b9fa35 
8   tbb::interface7::internal::isolate_impl<void, RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const>(RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const&)                                                                          task_arena.h         216  0xfee1a68 
9   tbb::interface7::this_task_arena::isolate<RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1}>(RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const&)                                                                                    task_arena.h         472  0xfee17b6 
10  RangeTask::operator()                                                                                                                                                                                                                                                                     task_range.cc        93   0xfee1739 
11  tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::run_body                                                                                                                                                                           parallel_for.h       115  0xfee370d 
12  tbb::interface9::internal::dynamic_grainsize_mode<tbb::interface9::internal::adaptive_mode<tbb::interface9::internal::auto_partition_type>>::work_balance<tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>, tbb::blocked_range<int>> partitioner.h        423  0xfee2edd 
13  tbb::interface9::internal::partition_type_base<tbb::interface9::internal::auto_partition_type>::execute<tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>, tbb::blocked_range<int>>                                                   partitioner.h        256  0xfee2b3d 
14  tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::execute                                                                                                                                                                            parallel_for.h       142  0xfee2632 
15  tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::process_bypass_loop(tbb::internal::context_guard_helper<false>&, tbb::task *, long)                                                                                                                                                           0x3bb0895 
16  tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::local_wait_for_all(tbb::task&, tbb::task *)                                                                                                                                                                                                   0x3bb0b4b 
17  tbb::internal::generic_scheduler::local_spawn_root_and_wait(tbb::task *, tbb::task *&)                                                                                                                                                                                                                              0x3bae3e0 
18  tbb::task::spawn_root_and_wait                                                                                                                                                                                                                                                            task.h               809  0x366c091 
19  tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::run                                                                                                                                                                                parallel_for.h       95   0xfee1c56 
20  tbb::parallel_for<tbb::blocked_range<int>, RangeTask>                                                                                                                                                                                                                                     parallel_for.h       201  0xfee1887 
... <More>

Can confirm a crash here. There might be something wrong with the script (havent checked in depth), but would be good by the Python or Modeling module to check. Two different stacktraces: ``` 1 bm_face_create_from_mpoly bmesh_mesh_convert.c 172 0x3d3369d 2 BM_mesh_bm_from_me bmesh_mesh_convert.c 414 0x3d3481c 3 BKE_mesh_to_bmesh_ex mesh.c 1014 0x3650fcd 4 BKE_mesh_to_bmesh mesh.c 1024 0x3651062 5 EDBM_mesh_make editmesh_utils.c 311 0x486feb2 6 ED_object_editmode_enter_ex object_edit.c 793 0x493558e 7 editmode_toggle_exec object_edit.c 888 0x493590e 8 wm_operator_invoke wm_event_system.c 1362 0x3bbd606 9 wm_operator_call_internal wm_event_system.c 1557 0x3bbdc42 10 WM_operator_name_call_ptr wm_event_system.c 1605 0x3bbde3f 11 ED_object_mode_set_ex object_modes.c 222 0x493dd4f 12 object_mode_set_exec object_edit.c 1677 0x493768f 13 wm_operator_invoke wm_event_system.c 1362 0x3bbd606 14 wm_operator_call_internal wm_event_system.c 1591 0x3bbdda8 15 WM_operator_call_py wm_event_system.c 1663 0x3bbe01f 16 pyop_call bpy_operator.c 285 0x45c07a5 17 cfunction_call methodobject.c 548 0xdf63b34 18 _PyObject_MakeTpCall call.c 191 0xdf25830 19 _PyObject_VectorcallTstate abstract.h 116 0x35ac429 20 _PyObject_VectorcallTstate abstract.h 103 0x35ac429 ... <More> ``` ``` 1 add_newell_cross_v3_v3v3 math_vector_inline.c 969 0x365531d 2 mesh_calc_ngon_normal mesh_evaluate.c 2178 0x365ab45 3 BKE_mesh_calc_poly_normal mesh_evaluate.c 2193 0x365abe7 4 mesh_calc_normals_poly_cb mesh_evaluate.c 225 0x3655c23 5 RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1}::operator()() const task_range.cc 97 0xfee16f8 6 tbb::interface7::internal::delegated_function<RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const, void>::operator()() const task_arena.h 96 0xfee2556 7 tbb::interface7::internal::isolate_within_arena(tbb::interface7::internal::delegate_base&, long) 0x3b9fa35 8 tbb::interface7::internal::isolate_impl<void, RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const>(RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const&) task_arena.h 216 0xfee1a68 9 tbb::interface7::this_task_arena::isolate<RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1}>(RangeTask::operator()(tbb::blocked_range<int> const&) const::{lambda()#1} const&) task_arena.h 472 0xfee17b6 10 RangeTask::operator() task_range.cc 93 0xfee1739 11 tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::run_body parallel_for.h 115 0xfee370d 12 tbb::interface9::internal::dynamic_grainsize_mode<tbb::interface9::internal::adaptive_mode<tbb::interface9::internal::auto_partition_type>>::work_balance<tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>, tbb::blocked_range<int>> partitioner.h 423 0xfee2edd 13 tbb::interface9::internal::partition_type_base<tbb::interface9::internal::auto_partition_type>::execute<tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>, tbb::blocked_range<int>> partitioner.h 256 0xfee2b3d 14 tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::execute parallel_for.h 142 0xfee2632 15 tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::process_bypass_loop(tbb::internal::context_guard_helper<false>&, tbb::task *, long) 0x3bb0895 16 tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::local_wait_for_all(tbb::task&, tbb::task *) 0x3bb0b4b 17 tbb::internal::generic_scheduler::local_spawn_root_and_wait(tbb::task *, tbb::task *&) 0x3bae3e0 18 tbb::task::spawn_root_and_wait task.h 809 0x366c091 19 tbb::interface9::internal::start_for<tbb::blocked_range<int>, RangeTask, tbb::auto_partitioner const>::run parallel_for.h 95 0xfee1c56 20 tbb::parallel_for<tbb::blocked_range<int>, RangeTask> parallel_for.h 201 0xfee1887 ... <More> ```

Philipp Oeser removed the

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Blender crashes when merging mesh.vertices with a python script #88022