[REALM] Realm::DynamicTable<Realm::DynamicTableAllocator<Realm::SparsityMapImplWrapper>>::has_entry() race

[Jacobfaib]

WARNING: ThreadSanitizer: data race (pid=2205)
  Read of size 4 at 0x7b9400084808 by thread T30:
    #0 Realm::DynamicTable<Realm::DynamicTableAllocator<Realm::SparsityMapImplWrapper, 10ul, 4ul> >::has_entry(unsigned long long) const /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_table.inl:244 (librealm.so.1+0xade22d)
    #1 Realm::RuntimeImpl::free_sparsity_impl(Realm::SparsityMapImplWrapper*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/runtime_impl.cc:3142 (librealm.so.1+0xac23c7)
    #2 Realm::SparsityMapImplWrapper::recycle() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/sparsity_impl.cc:259 (librealm.so.1+0x834eda)
    #3 Realm::SparsityMapImplWrapper::remove_references(unsigned int, Realm::Event) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/sparsity_impl.cc:319 (librealm.so.1+0x835918)
    #4 Realm::SparsityMapRefCounter::remove_references(unsigned int, Realm::Event) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/sparsity_impl.cc:67 (librealm.so.1+0x835b00)
    #5 Realm::SparsityMap<2, long long>::destroy(Realm::Event, unsigned int) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/sparsity_impl.cc:131 (librealm.so.1+0x84a4a7)
    #6 Realm::IndexSpace<2, long long>::destroy(Realm::Event) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/indexspace.inl:446 (liblegion.so.1+0x168bf3d)
    #7 Legion::Internal::IndexSpaceOperationT<2, long long>::tighten_index_space() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.inl:1605 (liblegion.so.1+0x168bf3d)
    #8 Legion::Internal::IndexSpaceExpression::handle_tighten_index_space(void const*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:6536 (liblegion.so.1+0x1042aa2)
    ...

  Previous write of size 8 at 0x7b9400084808 by thread T25:
    #0 operator new(unsigned long) ../../../../libsanitizer/tsan/tsan_new_delete.cpp:64 (libtsan.so.0+0x6fedf)
    #1 Realm::DynamicTable<Realm::DynamicTableAllocator<Realm::SparsityMapImplWrapper, 10ul, 4ul> >::new_tree_node(int, unsigned long long, unsigned long long, int, Realm::SparsityMapImplWrapper**, Realm::SparsityMapImplWrapper**) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_table.inl:203 (librealm.so.1+0xae5672)
    #2 Realm::DynamicTable<Realm::DynamicTableAllocator<Realm::SparsityMapImplWrapper, 10ul, 4ul> >::lookup_entry(unsigned long long, int, Realm::SparsityMapImplWrapper**, Realm::SparsityMapImplWrapper**) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_table.inl:333 (librealm.so.1+0xae593b)
    #3 Realm::DynamicTableFreeList<Realm::DynamicTableAllocator<Realm::SparsityMapImplWrapper, 10ul, 4ul> >::alloc_entry() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_table.inl:499 (librealm.so.1+0xae5da5)
    #4 Realm::RuntimeImpl::get_available_sparsity_impl(int) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/runtime_impl.cc:3135 (librealm.so.1+0xad1132)
    #5 Realm::UnionOperation<2, long long>::add_union(std::vector<Realm::IndexSpace<2, long long>, std::allocator<Realm::IndexSpace<2, long long> > > const&) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/setops.cc:1646 (librealm.so.1+0x745c6a)
    #6 Realm::IndexSpace<2, long long>::compute_union(std::vector<Realm::IndexSpace<2, long long>, std::allocator<Realm::IndexSpace<2, long long> > > const&, Realm::IndexSpace<2, long long>&, Realm::ProfilingRequestSet const&, Realm::Event) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/deppart/setops.cc:490 (librealm.so.1+0x746630)
    #7 Legion::Internal::IndexSpaceUnion<2, long long>::IndexSpaceUnion(std::vector<Legion::Internal::IndexSpaceExpression*, std::allocator<Legion::Internal::IndexSpaceExpression*> > const&, Legion::Internal::RegionTreeForest*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.inl:2067 (liblegion.so.1+0x169216d)
    #8 void Legion::Internal::UnionOpCreator::demux<Realm::DynamicTemplates::Int<2>, long long>(Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.h:1820 (liblegion.so.1+0x10e4c45)
    #9 void Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper2<Legion::Internal::UnionOpCreator, Realm::DynamicTemplates::Int<2> >::demux<long long, Legion::Internal::UnionOpCreator*>(Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:190 (liblegion.so.1+0x10e4c45)
    #10 void Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm>::DemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper2<Legion::Internal::UnionOpCreator, Realm::DynamicTemplates::Int<2> >, 2>::demux<Legion::Internal::UnionOpCreator*>(int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:37 (liblegion.so.1+0x10e4c45)
    #11 void Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> >::DemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper2<Legion::Internal::UnionOpCreator, Realm::DynamicTemplates::Int<2> >, 1>::demux<Legion::Internal::UnionOpCreator*>(int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:39 (liblegion.so.1+0x10e4c45)
    #12 void Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > >::DemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper2<Legion::Internal::UnionOpCreator, Realm::DynamicTemplates::Int<2> >, 0>::demux<Legion::Internal::UnionOpCreator*>(int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:39 (liblegion.so.1+0x10e4c45)
    #13 void Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > >::demux<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper2<Legion::Internal::UnionOpCreator, Realm::DynamicTemplates::Int<2> >, Legion::Internal::UnionOpCreator*>(int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:79 (liblegion.so.1+0x10e4c45)
    #14 void Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>::demux<Realm::DynamicTemplates::Int<2>, Legion::Internal::UnionOpCreator*>(unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:215 (liblegion.so.1+0x10e4c45)
    #15 void Realm::DynamicTemplates::IntDemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, 1, 1>::demux<unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.h:213 (liblegion.so.1+0x10e4c45)
    #16 void Realm::DynamicTemplates::IntDemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, 1, 2>::demux<unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.h:215 (liblegion.so.1+0x10e4f01)
    #17 void Realm::DynamicTemplates::IntDemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, 1, 3>::demux<unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.h:215 (liblegion.so.1+0x10e4f01)
    #18 void Realm::DynamicTemplates::IntDemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, 1, 4>::demux<unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.h:215 (liblegion.so.1+0x10e4f01)
    #19 void Realm::DynamicTemplates::IntDemuxHelper<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, 1, 5>::demux<unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.h:215 (liblegion.so.1+0x10e4f01)
    #20 void Realm::DynamicTemplates::IntList<1, 6>::demux<Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::DemuxHelper1<Legion::Internal::UnionOpCreator>, unsigned int, Legion::Internal::UnionOpCreator*>(int, unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:154 (liblegion.so.1+0x10e4f01)
    #21 void Realm::DynamicTemplates::ListProduct2<Realm::DynamicTemplates::IntList<1, 6>, Realm::DynamicTemplates::TypeListElem<int, Realm::DynamicTemplates::TypeListElem<unsigned int, Realm::DynamicTemplates::TypeListElem<long long, Realm::DynamicTemplates::TypeListTerm> > > >::demux<Legion::Internal::UnionOpCreator, Legion::Internal::UnionOpCreator*>(unsigned int, Legion::Internal::UnionOpCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/realm/dynamic_templates.inl:241 (liblegion.so.1+0x10e4f01)
    #22 Legion::Internal::UnionOpCreator::create_operation() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.h:1825 (liblegion.so.1+0x10e4f01)
    #23 Legion::Internal::OperationCreator::consume() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:6998 (liblegion.so.1+0x1042ec5)
    #24 Legion::Internal::ExpressionTrieNode::find_or_create_operation(std::vector<Legion::Internal::IndexSpaceExpression*, std::allocator<Legion::Internal::IndexSpaceExpression*> > const&, Legion::Internal::OperationCreator&) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:7227 (liblegion.so.1+0x1080e62)
    #25 Legion::Internal::RegionTreeForest::union_index_spaces(std::vector<Legion::Internal::IndexSpaceExpression*, std::allocator<Legion::Internal::IndexSpaceExpression*> > const&, Legion::Internal::OperationCreator*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:5610 (liblegion.so.1+0x108153e)
    #26 Legion::Internal::RegionTreeForest::union_index_spaces(Legion::Internal::IndexSpaceExpression*, Legion::Internal::IndexSpaceExpression*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:5390 (liblegion.so.1+0x10a84e1)
    #27 Legion::Internal::EquivalenceSet::record_partial_valid_instance(Legion::Internal::LogicalView*, Legion::Internal::IndexSpaceExpression*, SSETLBitMask<256u>, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:14791 (liblegion.so.1+0x921ad0)
    #28 void Legion::Internal::EquivalenceSet::record_instances<Legion::Internal::InstanceView>(Legion::Internal::IndexSpaceExpression*, bool, SSETLBitMask<256u> const&, Legion::Internal::FieldMaskSet<Legion::Internal::InstanceView, (Legion::Internal::AllocationType)104, false> const&) <null> (liblegion.so.1+0x9c2e4e)
    #29 Legion::Internal::EquivalenceSet::update_set(Legion::Internal::UpdateAnalysis&, Legion::Internal::IndexSpaceExpression*, bool, SSETLBitMask<256u> const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:13504 (liblegion.so.1+0x9678cb)
    #30 Legion::Internal::UpdateAnalysis::perform_analysis(Legion::Internal::EquivalenceSet*, Legion::Internal::IndexSpaceExpression*, bool, SSETLBitMask<256u> const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:9260 (liblegion.so.1+0x969167)
    #31 Legion::Internal::EquivalenceSet::analyze(Legion::Internal::PhysicalAnalysis&, Legion::Internal::IndexSpaceExpression*, bool, SSETLBitMask<256u>, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:12478 (liblegion.so.1+0x93682f)
    #32 Legion::Internal::PhysicalAnalysis::analyze(Legion::Internal::EquivalenceSet*, SSETLBitMask<256u> const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, Legion::Internal::RtEvent, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:7608 (liblegion.so.1+0x936b75)
    #33 Legion::Internal::PhysicalAnalysis::perform_traversal(Legion::Internal::RtEvent, Legion::Internal::VersionInfo const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:7763 (liblegion.so.1+0x936e15)
    #34 Legion::Internal::CollectiveCopyFillAnalysis::perform_traversal(Legion::Internal::RtEvent, Legion::Internal::VersionInfo const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_analysis.cc:8518 (liblegion.so.1+0x9371a6)
    #35 Legion::Internal::RegionTreeForest::physical_perform_updates(Legion::RegionRequirement const&, Legion::Internal::VersionInfo const&, Legion::Internal::Operation*, unsigned int, Legion::Internal::ApEvent, Legion::Internal::ApEvent, Legion::Internal::InstanceSet const&, std::vector<Legion::Internal::PhysicalManager*, std::allocator<Legion::Internal::PhysicalManager*> > const&, Legion::Internal::PhysicalTraceInfo const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, Legion::Internal::UpdateAnalysis*&, char const*, unsigned long long, bool, bool, bool, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:1931 (liblegion.so.1+0x10a256b)
    #36 Legion::Internal::RegionTreeForest::physical_perform_updates_and_registration(Legion::RegionRequirement const&, Legion::Internal::VersionInfo const&, Legion::Internal::Operation*, unsigned int, Legion::Internal::ApEvent, Legion::Internal::ApEvent, Legion::Internal::InstanceSet const&, std::vector<Legion::Internal::PhysicalManager*, std::allocator<Legion::Internal::PhysicalManager*> > const&, Legion::Internal::PhysicalTraceInfo const&, std::set<Legion::Internal::RtEvent, std::less<Legion::Internal::RtEvent>, std::allocator<Legion::Internal::RtEvent> >&, char const*, unsigned long long, bool, bool, bool) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/region_tree.cc:2011 (liblegion.so.1+0x10a2979)
    #37 Legion::Internal::SingleTask::map_all_regions(Legion::Internal::MustEpochOp*, Legion::Internal::TaskOp::DeferMappingArgs const*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_tasks.cc:4305 (liblegion.so.1+0xeb8016)
    #38 Legion::Internal::PointTask::perform_mapping(Legion::Internal::MustEpochOp*, Legion::Internal::TaskOp::DeferMappingArgs const*) /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_tasks.cc:7906 (liblegion.so.1+0xec5c04)
    #39 Legion::Internal::SingleTask::trigger_mapping() /tmp/conda-croot/legate/work/arch-conda/skbuild_core/_deps/legion-src/runtime/legion/legion_tasks.cc:2533 (liblegion.so.1+0xe72782)

[lightsighter]

I suspect that this is just an artifact of some things in the dynamic table data structure not using std::atomic in the right places to placate the thread sanitizer. Assigning to @apryakhin to triage.

[apryakhin]

I will look into this