#0  0x00000000045b0c96 in rna_Node_refine (ptr=0x7fffad8e7728)
    at /media/data/blender_dfelinto/blender_master/source/blender/makesrna/intern/rna_nodetree.c:1544
#1  0x00000000044976ce in RNA_pointer_create (id=0x7fffc71e3008, type=0x1567a640 <RNA_Node>, data=0x140833333, r_ptr=0x7fffad8e7728)
    at /media/data/blender_dfelinto/blender_master/source/blender/makesrna/intern/rna_access.c:164
#2  0x00000000044569dc in blender::nodes::NodeTreeRef::NodeTreeRef (this=0x7fffad7b3a00, btree=0x7fffc71e3008)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/node_tree_ref.cc:33
#3  0x000000000445c042 in std::make_unique<blender::nodes::NodeTreeRef, bNodeTree*> () at /usr/include/c++/9/bits/unique_ptr.h:857
#4  0x000000000445912f in blender::nodes::<lambda()>::operator()(void) const (__closure=0x7fffcbfb7228)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/node_tree_ref.cc:395
#5  0x0000000004459677 in blender::Map<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, 4, blender::PythonProbingStrategy<1, false>, blender::DefaultHash<bNodeTree*>, blender::DefaultEquality, blender::IntrusiveMapSlot<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, blender::PointerKeyInfo<bNodeTree*> >, blender::GuardedAllocator>::lookup_or_add_cb__impl<bNodeTree*, blender::nodes::get_tree_ref_from_map(blender::nodes::NodeTreeRefMap&, bNodeTree&)::<lambda()> >(bNodeTree *&&, const blender::nodes::<lambda()> &, uint64_t) (
    this=0x7fffcbfb7480, key=@0x7fffcbfb7230: 0x7fffc71e3008, create_value=..., hash=8796033377024)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenlib/BLI_map.hh:1139
#6  0x0000000004459498 in blender::Map<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, 4, blender::PythonProbingStrategy<1, false>, blender::DefaultHash<bNodeTree*>, blender::DefaultEquality, blender::IntrusiveMapSlot<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, blender::PointerKeyInfo<bNodeTree*> >, blender::GuardedAllocator>::lookup_or_add_cb_as<bNodeTree*, blender::nodes::get_tree_ref_from_map(blender::nodes::NodeTreeRefMap&, bNodeTree&)::<lambda()> >(bNodeTree *&&, const blender::nodes::<lambda()> &) (
    this=0x7fffcbfb7480, key=@0x7fffcbfb7230: 0x7fffc71e3008, create_value=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenlib/BLI_map.hh:587
#7  0x00000000044592ba in blender::Map<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, 4, blender::PythonProbingStrategy<1, false>, blender::DefaultHash<bNodeTree*>, blender::DefaultEquality, blender::IntrusiveMapSlot<bNodeTree*, std::unique_ptr<blender::nodes::NodeTreeRef const, std::default_delete<blender::nodes::NodeTreeRef const> >, blender::PointerKeyInfo<bNodeTree*> >, blender::GuardedAllocator>::lookup_or_add_cb<blender::nodes::get_tree_ref_from_map(blender::nodes::NodeTreeRefMap&, bNodeTree&)::<lambda()> >(bNodeTree *&&, const blender::nodes::<lambda()> &) (this=0x7fffcbfb7480, 
    key=@0x7fffcbfb7230: 0x7fffc71e3008, create_value=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenlib/BLI_map.hh:582
#8  0x0000000004459193 in blender::nodes::get_tree_ref_from_map (node_tree_refs=..., btree=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/node_tree_ref.cc:395
#9  0x000000000442a242 in blender::nodes::DerivedNodeTree::construct_context_recursively (this=0x7fffcbfb76c0, 
    parent_context=0x7fffaf4e2618, parent_node=0x7fff954ad6b8, btree=..., node_tree_refs=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/derived_node_tree.cc:44
#10 0x000000000442a318 in blender::nodes::DerivedNodeTree::construct_context_recursively (this=0x7fffcbfb76c0, parent_context=0x0, 
    parent_node=0x0, btree=..., node_tree_refs=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/derived_node_tree.cc:53
#11 0x000000000442a151 in blender::nodes::DerivedNodeTree::DerivedNodeTree (this=0x7fffcbfb76c0, btree=..., node_tree_refs=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/nodes/intern/derived_node_tree.cc:32
#12 0x00000000040a06d7 in modifyGeometry (md=0x7fffcaa10388, ctx=0x7fffcbfb79e0, geometry_set=...)
    at /media/data/blender_dfelinto/blender_master/source/blender/modifiers/intern/MOD_nodes.cc:983
#13 0x00000000040a0c6f in modifyGeometrySet (md=0x7fffcaa10388, ctx=0x7fffcbfb79e0, geometry_set=0x7fffcbfb7b40)
    at /media/data/blender_dfelinto/blender_master/source/blender/modifiers/intern/MOD_nodes.cc:1039
#14 0x0000000003ae050a in modifier_modify_mesh_and_geometry_set (md=0x7fffcaa10388, mectx=..., input_mesh=0x7fffac3d7008, 
    geometry_set=...) at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/DerivedMesh.cc:954
#15 0x0000000003ae152b in mesh_calc_modifiers (depsgraph=0x7fffc7134d08, scene=0x7ffff535cc08, ob=0x7ffefcb99208, useDeform=1, 
    need_mapping=false, dataMask=0x7fffcbfb8020, index=-1, use_cache=true, allow_shared_mesh=true, r_deform=0x7fffcbfb7f98, 
    r_final=0x7fffcbfb7f90, r_geometry_set=0x7fffcbfb7fa0)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/DerivedMesh.cc:1306
#16 0x0000000003ae3a29 in mesh_build_data (depsgraph=0x7fffc7134d08, scene=0x7ffff535cc08, ob=0x7ffefcb99208, dataMask=0x7fffcbfb8020, 
    need_mapping=false) at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/DerivedMesh.cc:1932
#17 0x0000000003ae3fca in makeDerivedMesh (depsgraph=0x7fffc7134d08, scene=0x7ffff535cc08, ob=0x7ffefcb99208, em=0x0, 
    dataMask=0x7fffcbfb80b0) at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/DerivedMesh.cc:2080
#18 0x00000000036f1dab in BKE_object_handle_data_update (depsgraph=0x7fffc7134d08, scene=0x7ffff535cc08, ob=0x7ffefcb99208)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/object_update.c:202
#19 0x00000000036f2731 in BKE_object_eval_uber_data (depsgraph=0x7fffc7134d08, scene=0x7ffff535cc08, ob=0x7ffefcb99208)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenkernel/intern/object_update.c:388
#20 0x000000000e5fa216 in blender::deg::DepsgraphNodeBuilder::<lambda(Depsgraph*)>::operator()(Depsgraph *) const (
    __closure=0x7fffeda7b4c8, depsgraph=0x7fffc7134d08)
    at /media/data/blender_dfelinto/blender_master/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc:1352
#21 0x000000000e600800 in std::_Function_handler<void(Depsgraph*), blender::deg::DepsgraphNodeBuilder::build_object_data_geometry(Object*, bool)::<lambda(Depsgraph*)> >::_M_invoke(const std::_Any_data &, Depsgraph *&&) (__functor=..., 
    __args#0=@0x7fffcbfb8180: 0x7fffc7134d08) at /usr/include/c++/9/bits/std_function.h:300
#22 0x000000000e5db505 in std::function<void (Depsgraph*)>::operator()(Depsgraph*) const (this=0x7fffeda7b4c8, __args#0=0x7fffc7134d08)
    at /usr/include/c++/9/bits/std_function.h:688
#23 0x000000000e5da736 in blender::deg::(anonymous namespace)::evaluate_node (state=0x7fffffffd8e0, operation_node=0x7fffeda7b408)
    at /media/data/blender_dfelinto/blender_master/source/blender/depsgraph/intern/eval/deg_eval.cc:113
#24 0x000000000e5da780 in blender::deg::(anonymous namespace)::deg_task_run_func (pool=0x7ffeec50c288, taskdata=0x7fffeda7b408)
    at /media/data/blender_dfelinto/blender_master/source/blender/depsgraph/intern/eval/deg_eval.cc:124
#25 0x000000001061f9c0 in Task::operator()() const::{lambda()#1}::operator()() const (__closure=0x7fffcbfb8310)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenlib/intern/task_pool.cc:118
#26 0x000000001061fe40 in tbb::interface7::internal::delegated_function<Task::operator()() const::{lambda()#1} const, void>::operator()() const (this=0x7fffcbfb82a0) at /media/data/blender_dfelinto/lib/linux_centos7_x86_64/tbb/include/tbb/task_arena.h:96
#27 0x0000000003c5bd65 in tbb::interface7::internal::isolate_within_arena(tbb::interface7::internal::delegate_base&, long) ()
#28 0x000000001061fbc5 in tbb::interface7::internal::isolate_impl<void, Task::operator()() const::{lambda()#1} const>(Task::operator()() const::{lambda()#1} const&) (f=...) at /media/data/blender_dfelinto/lib/linux_centos7_x86_64/tbb/include/tbb/task_arena.h:216
#29 0x000000001061facb in tbb::interface7::this_task_arena::isolate<Task::operator()() const::{lambda()#1}>(tbb::interface7::internal::return_type_or_void const&) (f=...) at /media/data/blender_dfelinto/lib/linux_centos7_x86_64/tbb/include/tbb/task_arena.h:472
#30 0x000000001061f9f7 in Task::operator() (this=0x7fffadabc8c8)
    at /media/data/blender_dfelinto/blender_master/source/blender/blenlib/intern/task_pool.cc:118
#31 0x000000001061fe18 in tbb::internal::function_task<Task>::execute (this=0x7fffadabc8c0)
    at /media/data/blender_dfelinto/lib/linux_centos7_x86_64/tbb/include/tbb/task.h:1059
#32 0x0000000003c6cbc5 in tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::process_bypass_loop(tbb::internal::context_guard_helper<false>&, tbb::task*, long) ()
#33 0x0000000003c6ce7b in tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::local_wait_for_all(tbb::task&, tbb::task*) ()
#34 0x0000000003c5ba77 in tbb::internal::arena::process(tbb::internal::generic_scheduler&) ()
#35 0x0000000003c668b0 in tbb::internal::market::process(rml::job&) ()
#36 0x0000000003c688ec in tbb::internal::rml::private_worker::run() ()
#37 0x0000000003c68ae9 in tbb::internal::rml::private_worker::thread_routine(void*) ()
#38 0x00007ffff7f8b609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#39 0x00007ffff796b293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95