Armature and rigid body crash #61262

New Issue

Peter Johansson · 2019-02-06T23:38:44+01:00

Peter Johansson commented

2019-02-06 23:38:44 +01:00

Trying to play the animation with a rigid body cube parented and weight painted with an armature bone causes a crash in blender 2.8 Beta (2019-02-06)

To reproduce the error, follow these steps

Add an armature
Auto weight paint it (ctrl p) to the default cube
Select the default cube and add rigid body in physics tab
Play animation

The attached example will not crash directly when playing the animation without rigid body option first deselected and selected again!
rigid bone crash.blend

Trying to play the animation with a rigid body cube parented and weight painted with an armature bone causes a crash in blender 2.8 Beta (2019-02-06) To reproduce the error, follow these steps - Add an armature - Auto weight paint it (ctrl p) to the default cube - Select the default cube and add rigid body in physics tab - Play animation The attached example will not crash directly when playing the animation without rigid body option first deselected and selected again! [rigid bone crash.blend](https://archive.blender.org/developer/F6532216/rigid_bone_crash.blend)

Peter Johansson commented

2019-02-06 23:38:44 +01:00

Added subscriber: @PLJ

Sebastian Parborg commented

2019-02-07 12:37:31 +01:00

Added subscribers: @Sergey, @sreich, @ZedDB

Sergey Sharybin was assigned by Sebastian Parborg

2019-02-07 12:37:31 +01:00

Sebastian Parborg commented

2019-02-07 12:37:31 +01:00

@Sergey feel free to reassign to @sreich if this is not for you.

Note: To get it to segfault I have to:

Open the attached file
Play the animation
Stop playing the animation and move the timeline back to the start frame
Remove and re-add the rigid body
Play animation once again.

If I for example play the animation and make it jump back to the start frame, the rigid body starts simulation and build a cache. At that point I can add and remove the rigid body and it won't crash for me anymore.

Backtrace:

Thread 28 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd4ffb700 (LWP 23169)]
0x0000555558233158 in RB_body_get_position (object=0x0, v_out=0x7fffd20110c8)
    at /home/zed/programmering/blender_master/blender/intern/rigidbody/rb_bullet_api.cpp:617
617		btRigidBody *body = object->body;
(gdb) bt
#0  0x0000555558233158 in RB_body_get_position (object=0x0, v_out=0x7fffd20110c8)
    at /home/zed/programmering/blender_master/blender/intern/rigidbody/rb_bullet_api.cpp:617
#1  0x000055555818026e in ptcache_rigidbody_write (index=0, rb_v=0x7fffe5b5df28, data=0x7fffd280f1e8, UNUSED_cfra=1)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:1293
#2  0x0000555558184cd8 in ptcache_write (pid=0x7fffd4ffa8c0, cfra=1, overwrite=0)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:2915
#3  0x000055555818512e in BKE_ptcache_write (pid=0x7fffd4ffa8c0, cfra=1)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:3023
#4  0x000055555818e917 in BKE_rigidbody_do_simulation (depsgraph=0x7fffe5b31608, scene=0x7fffe4bb4008, ctime=2)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/rigidbody.c:1743
#5  0x000055555818eb8d in BKE_rigidbody_eval_simulation (depsgraph=0x7fffe5b31608, scene=0x7fffe4bb4008)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/rigidbody.c:1829
#6  0x0000555558586fcd in std::__invoke_impl<void, void (*&)(Depsgraph*, Scene*), Depsgraph*, Scene*&> (__f=
    @0x7fffcfd92940: 0x55555818eb15 <BKE_rigidbody_eval_simulation>, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608, __args#1=@0x7fffcfd92948: 0x7fffe4bb4008)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/invoke.h:60
#7  0x0000555558585c84 in std::__invoke<void (*&)(Depsgraph*, Scene*), Depsgraph*, Scene*&> (__fn=
    @0x7fffcfd92940: 0x55555818eb15 <BKE_rigidbody_eval_simulation>, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608, __args#1=@0x7fffcfd92948: 0x7fffe4bb4008)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/invoke.h:95
- 8  0x000055555858455c in std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)>::__call<void, Depsgraph*&&, 0ul, 1ul>(std::tuple<Depsgraph*&&>&&, std::_Index_tuple<0ul, 1ul>) (this=0x7fffcfd92940, __args=...) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/functional:400
- 9  0x0000555558582738 in std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)>::operator()<Depsgraph*, void>(Depsgraph*&&) (
    this=0x7fffcfd92940, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/functional:484
#10 0x000055555857f9ca in std::_Function_handler<void (Depsgraph*), std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)> >::_M_invoke(std::_Any_data const&, Depsgraph*&&) (__functor=..., __args#0=@0x7fffd4ffab10: 0x7fffe5b31608)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:297
#11 0x0000555558599197 in std::function<void (Depsgraph*)>::operator()(Depsgraph*) const (this=0x7fffcfefc2a8, __args#0=0x7fffe5b31608)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:687
#12 0x0000555558598778 in DEG::deg_task_run_func (pool=0x7fffd9553008, taskdata=0x7fffcfefc248, thread_id=5)
    at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:87
#13 0x00005555585565c0 in handle_local_queue (thread_id=5, tls=0x7fffd95f7908)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:416
- 14 task_scheduler_thread_run (thread_p=0x7fffd95f78f8) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:445
- 15 0x00007ffff63933c3 in start_thread () from /lib64/libpthread.so.0
#16 0x00007ffff32223ef in clone () from /lib64/libc.so.6

@Sergey feel free to reassign to @sreich if this is not for you. Note: To get it to segfault I have to: 1. Open the attached file 2. Play the animation 3. Stop playing the animation and move the timeline back to the start frame 4. Remove and re-add the rigid body 5. Play animation once again. If I for example play the animation and make it jump back to the start frame, the rigid body starts simulation and build a cache. At that point I can add and remove the rigid body and it won't crash for me anymore. Backtrace: ``` Thread 28 "blender" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffd4ffb700 (LWP 23169)] 0x0000555558233158 in RB_body_get_position (object=0x0, v_out=0x7fffd20110c8) at /home/zed/programmering/blender_master/blender/intern/rigidbody/rb_bullet_api.cpp:617 617 btRigidBody *body = object->body; (gdb) bt #0 0x0000555558233158 in RB_body_get_position (object=0x0, v_out=0x7fffd20110c8) at /home/zed/programmering/blender_master/blender/intern/rigidbody/rb_bullet_api.cpp:617 #1 0x000055555818026e in ptcache_rigidbody_write (index=0, rb_v=0x7fffe5b5df28, data=0x7fffd280f1e8, UNUSED_cfra=1) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:1293 #2 0x0000555558184cd8 in ptcache_write (pid=0x7fffd4ffa8c0, cfra=1, overwrite=0) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:2915 #3 0x000055555818512e in BKE_ptcache_write (pid=0x7fffd4ffa8c0, cfra=1) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/pointcache.c:3023 #4 0x000055555818e917 in BKE_rigidbody_do_simulation (depsgraph=0x7fffe5b31608, scene=0x7fffe4bb4008, ctime=2) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/rigidbody.c:1743 #5 0x000055555818eb8d in BKE_rigidbody_eval_simulation (depsgraph=0x7fffe5b31608, scene=0x7fffe4bb4008) at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/rigidbody.c:1829 #6 0x0000555558586fcd in std::__invoke_impl<void, void (*&)(Depsgraph*, Scene*), Depsgraph*, Scene*&> (__f= @0x7fffcfd92940: 0x55555818eb15 <BKE_rigidbody_eval_simulation>, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608, __args#1=@0x7fffcfd92948: 0x7fffe4bb4008) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/invoke.h:60 #7 0x0000555558585c84 in std::__invoke<void (*&)(Depsgraph*, Scene*), Depsgraph*, Scene*&> (__fn= @0x7fffcfd92940: 0x55555818eb15 <BKE_rigidbody_eval_simulation>, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608, __args#1=@0x7fffcfd92948: 0x7fffe4bb4008) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/invoke.h:95 - 8 0x000055555858455c in std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)>::__call<void, Depsgraph*&&, 0ul, 1ul>(std::tuple<Depsgraph*&&>&&, std::_Index_tuple<0ul, 1ul>) (this=0x7fffcfd92940, __args=...) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/functional:400 - 9 0x0000555558582738 in std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)>::operator()<Depsgraph*, void>(Depsgraph*&&) ( this=0x7fffcfd92940, __args#0=@0x7fffd4ffab10: 0x7fffe5b31608) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/functional:484 #10 0x000055555857f9ca in std::_Function_handler<void (Depsgraph*), std::_Bind<void (*(std::_Placeholder<1>, Scene*))(Depsgraph*, Scene*)> >::_M_invoke(std::_Any_data const&, Depsgraph*&&) (__functor=..., __args#0=@0x7fffd4ffab10: 0x7fffe5b31608) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:297 #11 0x0000555558599197 in std::function<void (Depsgraph*)>::operator()(Depsgraph*) const (this=0x7fffcfefc2a8, __args#0=0x7fffe5b31608) at /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.0/include/g++-v8/bits/std_function.h:687 #12 0x0000555558598778 in DEG::deg_task_run_func (pool=0x7fffd9553008, taskdata=0x7fffcfefc248, thread_id=5) at /home/zed/programmering/blender_master/blender/source/blender/depsgraph/intern/eval/deg_eval.cc:87 #13 0x00005555585565c0 in handle_local_queue (thread_id=5, tls=0x7fffd95f7908) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:416 - 14 task_scheduler_thread_run (thread_p=0x7fffd95f78f8) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:445 - 15 0x00007ffff63933c3 in start_thread () from /lib64/libpthread.so.0 #16 0x00007ffff32223ef in clone () from /lib64/libc.so.6 ```

Sebastian Parborg commented

2019-02-09 15:22:34 +01:00

I got the same crash when trying to reproduce #61346
rig_body.blend

However, the same steps as above are required to make it crash on the saved file.

I got the same crash when trying to reproduce #61346 [rig_body.blend](https://archive.blender.org/developer/F6559859/rig_body.blend) However, the same steps as above are required to make it crash on the saved file.

blender-admin commented

2019-02-12 12:32:03 +01:00

This issue was referenced by 024f5ba2bd

This issue was referenced by 024f5ba2bdba7fbd154757b9842995051bbb9a7d

Sergey Sharybin commented

2019-02-12 12:59:25 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2019-02-12 12:59:25 +01:00

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Armature and rigid body crash #61262