running: //opt/couchbase/bin/minidump-2-core /opt/couchbase/var/lib/couchbase/crash/18f55197-ccea-404b-9109d78a-4eb2428d.dmp > /opt/couchbase/var/lib/couchbase/crash/18f55197-ccea-404b-9109d78a-4eb2428.core
running: gdb --batch /opt/couchbase/bin/memcached -c /opt/couchbase/var/lib/couchbase/crash/18f55197-ccea-404b-9109d78a-4eb2428.core -ex "bt full" -ex quit
172.23.105.155: Stack Trace of first crash - 18f55197-ccea-404b-9109d78a-4eb2428d.dmp
Core was generated by `/opt/couchbase/bin/memcached -C /opt/couchbase/var/lib/couchbase/config/memcach'.
 #0  0x00007f9eaa45b207 in raise () from /lib64/libc.so.6
 #0  0x00007f9eaa45b207 in raise () from /lib64/libc.so.6
 No symbol table info available.
 #1  0x00007f9eaa45c8f8 in abort () from /lib64/libc.so.6
 No symbol table info available.
 #2  0x00007f9eaada563c in __gnu_cxx::__verbose_terminate_handler () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/vterminate.cc:95
         terminating = false
         t = <optimized out>
 #3  0x0000000000b31d9b in backtrace_terminate_handler() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/utilities/terminate_handler.cc:88
 No locals.
 #4  0x00007f9eaadb08f6 in __cxxabiv1::__terminate(void (*)()) () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:48
 No locals.
 #5  0x00007f9eaadb0961 in std::terminate () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:58
 No locals.
 #6  0x00007f9eaadb0bf4 in __cxxabiv1::__cxa_throw (obj=obj@entry=0x7f9e74000940, tinfo=0x10866b0 <typeinfo for std::logic_error>, dest=0x445660 <_ZNSt11logic_errorD1Ev@plt>) at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_throw.cc:95
         globals = <optimized out>
         header = 0x7f9e740008c0
 #7  0x00000000004c89f4 in DurabilityMonitor::ActiveSyncWrite::ack (this=0x7f9e37890890, node=...) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/durability_monitor_impl.cc:133
         acked = <optimized out>
 #8  0x00000000007f26b0 in ActiveDurabilityMonitor::State::advanceAndAckForPosition(DurabilityMonitor::Position<std::__cxx11::list<DurabilityMonitor::ActiveSyncWrite, std::allocator<DurabilityMonitor::ActiveSyncWrite> > >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/active_durability_monitor.cc:772
         cookie = <optimized out>
 #9  0x00000000007f532a in ActiveDurabilityMonitor::State::advanceNodePosition(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/active_durability_monitor.cc:739
         pos = @0x7f9e9c28f648: <error reading variable>
         firstChainItr = {<std::__detail::_Node_iterator_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, DurabilityMonitor::Position<std::__cxx11::list<DurabilityMonitor::ActiveSyncWrite, std::allocator<DurabilityMonitor::ActiveSyncWrite> > > >, true>> = {_M_cur = 0x7f9e9c28f620}, <No data fields>}
         firstChainFound = true
         __func__ = "advanceNodePosition"
         secondChainItr = {<std::__detail::_Node_iterator_base<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, DurabilityMonitor::Position<std::__cxx11::list<DurabilityMonitor::ActiveSyncWrite, std::allocator<DurabilityMonitor::ActiveSyncWrite> > > >, true>> = {_M_cur = 0x0}, <No data fields>}
         secondChainFound = false
 #10 0x00000000007f53f4 in ActiveDurabilityMonitor::State::updateHighPreparedSeqno(ActiveDurabilityMonitor::ResolvedQueue&) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/active_durability_monitor.cc:1667
         next = <optimized out>
 #11 0x00000000007f5840 in checkForCommit (this=0x7f9e61058a60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/active_durability_monitor.cc:1721
 No locals.
 #12 ActiveDurabilityMonitor::notifyLocalPersistence(folly::SharedMutexImpl<false, void, std::atomic, false, false>::ReadHolder&) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/durability/active_durability_monitor.cc:430
 No locals.
 #13 0x0000000000724e7c in VBucket::notifyPersistenceToDurabilityMonitor() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/vbucket.cc:4125
         rlh = {lock_ = 0x7f9e611d1ce8, token_ = {type_ = folly::SharedMutexToken::INLINE_SHARED, slot_ = 132}}
 #14 0x0000000000818cff in EPBucket::flushVBucket_UNLOCKED(LockedVBucketPtr) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/locked_vbucket_ptr.h:42
         vbid = {vbid = 320}
         toFlush = {items = {<std::_Vector_base<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> >, std::allocator<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> > > >> = {_M_impl = {<std::allocator<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> > >> = {<__gnu_cxx::new_allocator<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> > >> = {<No data fields>}, <No data fields>}, <std::_Vector_base<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> >, std::allocator<SingleThreadedRCPtr<Item, Item*, std::default_delete<Item> > > >::_Vector_impl_data> = {_M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}, <No data fields>}}, <No data fields>}, ranges = {<std::_Vector_base<CheckpointSnapshotRange, std::allocator<CheckpointSnapshotRange> >> = {_M_impl = {<std::allocator<CheckpointSnapshotRange>> = {<__gnu_cxx::new_allocator<CheckpointSnapshotRange>> = {<No data fields>}, <No data fields>}, <std::_Vector_base<CheckpointSnapshotRange, std::allocator<CheckpointSnapshotRange> >::_Vector_impl_data> = {_M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}, <No data fields>}}, <No data fields>}, moreAvailable = false, maxDeletedRevSeqno = {<std::_Optional_base<unsigned long, true, true>> = {<std::_Optional_base_impl<unsigned long, std::_Optional_base<unsigned long, true, true> >> = {<No data fields>}, _M_payload = {<std::_Optional_payload_base<unsigned long>> = {_M_payload = {_M_empty = {<No data fields>}, _M_value = 0}, _M_engaged = false}, <No data fields>}}, <std::_Enable_copy_move<true, true, true, true, std::optional<unsigned long> >> = {<No data fields>}, <No data fields>}, checkpointType = Memory, flushHandle = {_M_t = {<std::__uniq_ptr_impl<FlushHandle, std::default_delete<FlushHandle> >> = {_M_t = {<std::_Tuple_impl<0, FlushHandle*, std::default_delete<FlushHandle> >> = {<std::_Tuple_impl<1, std::default_delete<FlushHandle> >> = {<std::_Head_base<1, std::default_delete<FlushHandle>, true>> = {<std::default_delete<FlushHandle>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, FlushHandle*, false>> = {_M_head_impl = 0x7f9e606caa60}, <No data fields>}, <No data fields>}}, <No data fields>}}}
         moreAvailable = <optimized out>
         wakeupCheckpointRemover = <optimized out>
         range = <optimized out>
         rwUnderlying = 0x7f9e9c2ce000
         ctx = {_M_t = {<std::__uniq_ptr_impl<TransactionContext, std::default_delete<TransactionContext> >> = {_M_t = {<std::_Tuple_impl<0, TransactionContext*, std::default_delete<TransactionContext> >> = {<std::_Tuple_impl<1, std::default_delete<TransactionContext> >> = {<std::_Head_base<1, std::default_delete<TransactionContext>, true>> = {<std::default_delete<TransactionContext>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, TransactionContext*, false>> = {_M_head_impl = 0x0}, <No data fields>}, <No data fields>}}, <No data fields>}}
         mustDedupe = <optimized out>
         prev = <optimized out>
         persistedVbState = <optimized out>
         vbstate = {static CurrentVersion = 4, maxDeletedSeqno = {counter = {_M_elems = "\000\000\000\000\000"}}, highSeqno = 632, purgeSeqno = 0, lastSnapStart = 632, lastSnapEnd = 632, maxCas = 1652850006035726336, hlcCasEpochSeqno = 1, mightContainXattrs = false, supportsNamespaces = true, version = 4, persistedCompletedSeqno = 630, persistedPreparedSeqno = 630, highPreparedSeqno = 630, maxVisibleSeqno = 632, onDiskPrepares = 16, onDiskPrepareBytes = 2225, checkpointType = Memory, transition = {failovers = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f9e6044a900 <Address 0x7f9e6044a900 out of bounds>}, _M_string_length = 31, {_M_local_buf = "\037\000\000\000\000\000\000\000\000\002$\252\236\177\000", _M_allocated_capacity = 31}}, replicationTopology = {m_type = nlohmann::detail::array, m_value = {object = 0x7f9e9c280040, array = 0x7f9e9c280040, string = 0x7f9e9c280040, binary = 0x7f9e9c280040, boolean = 64, number_integer = 140319201427520, number_unsigned = 140319201427520, number_float = 6.9326896877215633e-310}}, state = vbucket_state_active}}
         logged = false
         callback = {__this = 0x7f9e9c2a4000, __logged = @0x7f9e87fecc65, __vbid = {vbid = <optimized out>}}
         writeOp = <optimized out>
         commitData = {collections = {collections = {_M_h = {<std::__detail::_Hashtable_base<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::__detail::_Select1st, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<CollectionID>, true>> = {<std::hash<CollectionID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<CollectionID>, true>> = {<std::equal_to<CollectionID>> = {<std::binary_function<CollectionID, CollectionID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::allocator<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::allocator<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::allocator<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::allocator<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<CollectionID, std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, std::allocator<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::Flush::CollectionSpan>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fecf70, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, scopes = {_M_h = {<std::__detail::_Hashtable_base<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::__detail::_Select1st, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<ScopeID>, true>> = {<std::hash<ScopeID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<ScopeID>, true>> = {<std::equal_to<ScopeID>> = {<std::binary_function<ScopeID, ScopeID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::allocator<std::pair<ScopeID const, Collections::KVStore::OpenScope> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::allocator<std::pair<ScopeID const, Collections::KVStore::OpenScope> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::allocator<std::pair<ScopeID const, Collections::KVStore::OpenScope> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::allocator<std::pair<ScopeID const, Collections::KVStore::OpenScope> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<ScopeID, std::pair<ScopeID const, Collections::KVStore::OpenScope>, std::allocator<std::pair<ScopeID const, Collections::KVStore::OpenScope> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, Collections::KVStore::OpenScope>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, Collections::KVStore::OpenScope>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, Collections::KVStore::OpenScope>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<ScopeID const, Collections::KVStore::OpenScope>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fecfa8, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, droppedScopes = {_M_h = {<std::__detail::_Hashtable_base<ScopeID, std::pair<ScopeID const, unsigned long>, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<ScopeID, std::pair<ScopeID const, unsigned long>, std::__detail::_Select1st, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<ScopeID>, true>> = {<std::hash<ScopeID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<ScopeID>, true>> = {<std::equal_to<ScopeID>> = {<std::binary_function<ScopeID, ScopeID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<ScopeID, std::pair<ScopeID const, unsigned long>, std::allocator<std::pair<ScopeID const, unsigned long> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<ScopeID, std::pair<ScopeID const, unsigned long>, std::allocator<std::pair<ScopeID const, unsigned long> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<ScopeID, std::pair<ScopeID const, unsigned long>, std::allocator<std::pair<ScopeID const, unsigned long> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<ScopeID, std::pair<ScopeID const, unsigned long>, std::allocator<std::pair<ScopeID const, unsigned long> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<ScopeID, std::pair<ScopeID const, unsigned long>, std::allocator<std::pair<ScopeID const, unsigned long> >, std::__detail::_Select1st, std::equal_to<ScopeID>, std::hash<ScopeID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, unsigned long>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, unsigned long>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<ScopeID const, unsigned long>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<ScopeID const, unsigned long>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fecfe0, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, flushAccounting = {stats = {_M_h = {<std::__detail::_Hashtable_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::__detail::_Select1st, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<CollectionID>, true>> = {<std::hash<CollectionID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<CollectionID>, true>> = {<std::equal_to<CollectionID>> = {<std::binary_function<CollectionID, CollectionID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e9c2504a0, _M_bucket_count = 13, _M_before_begin = {_M_nxt = 0x7f9e9c278b00}, _M_element_count = 1, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 13}, _M_single_bucket = 0x0}}, droppedStats = {_M_h = {<std::__detail::_Hashtable_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::__detail::_Select1st, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<CollectionID>, true>> = {<std::hash<CollectionID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<CollectionID>, true>> = {<std::equal_to<CollectionID>> = {<std::binary_function<CollectionID, CollectionID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<CollectionID, std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, std::allocator<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::VB::FlushAccounting::StatisticsUpdate>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fed050, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, droppedCollections = {_M_h = {<std::__detail::_Hashtable_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::__detail::_Select1st, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<CollectionID>, true>> = {<std::hash<CollectionID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<CollectionID>, true>> = {<std::equal_to<CollectionID>> = {<std::binary_function<CollectionID, CollectionID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fed088, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, droppedInStore = {_M_h = {<std::__detail::_Hashtable_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >> = {<std::__detail::_Hash_code_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::__detail::_Select1st, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<CollectionID>, true>> = {<std::hash<CollectionID>> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<CollectionID>, true>> = {<std::equal_to<CollectionID>> = {<std::binary_function<CollectionID, CollectionID, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, false>> = {<std::__detail::_Insert_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<CollectionID, std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, std::allocator<std::pair<CollectionID const, Collections::KVStore::DroppedCollection> >, std::__detail::_Select1st, std::equal_to<CollectionID>, std::hash<CollectionID>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<CollectionID const, Collections::KVStore::DroppedCollection>, true> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f9e87fed0c0, _M_bucket_count = 1, _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}, isPiTR = No}, manifestUid = {<IgnorePolicy<unsigned long>> = {<No data fields>}, val = 0}, manifest = {<std::_Reference_wrapper_base_memfun<Collections::VB::Manifest, false>> = {<std::_Reference_wrapper_base<Collections::VB::Manifest>> = {<std::_Weak_result_type<Collections::VB::Manifest>> = {<std::_Weak_result_type_memfun<Collections::VB::Manifest, false>> = {<std::_Weak_result_type_impl<Collections::VB::Manifest>> = {<std::_Maybe_get_result_type<Collections::VB::Manifest, void>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::_Refwrap_base_arg1<Collections::VB::Manifest, void>> = {<No data fields>}, <std::_Refwrap_base_arg2<Collections::VB::Manifest, void>> = {<No data fields>}, <No data fields>}, <No data fields>}, _M_data = 0x7f9e610b6600}, nonEmptyDroppedCollections = 0, needsMetaCommit = false}, writeOp = Upsert, proposedVBState = {static CurrentVersion = 4, maxDeletedSeqno = {counter = {_M_elems = "\000\000\000\000\000"}}, highSeqno = 649, purgeSeqno = 0, lastSnapStart = 649, lastSnapEnd = 649, maxCas = 1652850007352737792, hlcCasEpochSeqno = 1, mightContainXattrs = false, supportsNamespaces = true, version = 4, persistedCompletedSeqno = 646, persistedPreparedSeqno = 649, highPreparedSeqno = 649, maxVisibleSeqno = 648, onDiskPrepares = 16, onDiskPrepareBytes = 2225, checkpointType = Memory, transition = {failovers = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f9e9c2683c0 <Address 0x7f9e9c2683c0 out of bounds>}, _M_string_length = 31, {_M_local_buf = "<\000\000\000\000\000\000\000\003\000\000\000\000\000\000", _M_allocated_capacity = 60}}, replicationTopology = {m_type = nlohmann::detail::null, m_value = {object = 0x0, array = 0x0, string = 0x0, binary = 0x0, boolean = false, number_integer = 0, number_unsigned = 0, number_float = 0}}, state = vbucket_state_dead}}, sysErrorCallback = {<std::_Maybe_unary_or_binary_function<bool, std::system_error const&>> = {<std::unary_function<std::system_error const&, bool>> = {<No data fields>}, <No data fields>}, <std::_Function_base> = {static _M_max_size = 16, static _M_max_align = 8, _M_functor = {_M_unused = {_M_object = 0x7f9e946eeaa0, _M_const_object = 0x7f9e946eeaa0, _M_function_pointer = 0x7f9e946eeaa0, _M_member_pointer = (void (std::_Undefined_class::*)(std::_Undefined_class * const)) 0x7f9e946eeaa0, this adjustment 140319435817729}, _M_pod_data = "\240\352n\224\236\177\000\000\001\203 \252\236\177\000"}, _M_manager = 0x80e640 <std::_Function_handler<bool(const std::system_error&), EPBucket::flushVBucket_UNLOCKED(LockedVBucketPtr)::<lambda(const std::system_error&)> >::_M_manager(std::_Any_data &, const std::_Any_data &, std::_Manager_operation)>}, _M_invoker = 0x80e4e0 <std::_Function_handler<bool(const std::system_error&), EPBucket::flushVBucket_UNLOCKED(LockedVBucketPtr)::<lambda(const std::system_error&)> >::_M_invoke(const std::_Any_data &, const std::system_error &)>}}
         proposedVBState = @0x7f9e87fed0f0: {static CurrentVersion = 4, maxDeletedSeqno = {counter = {_M_elems = "\000\000\000\000\000"}}, highSeqno = 649, purgeSeqno = 0, lastSnapStart = 649, lastSnapEnd = 649, maxCas = 1652850007352737792, hlcCasEpochSeqno = 1, mightContainXattrs = false, supportsNamespaces = true, version = 4, persistedCompletedSeqno = 646, persistedPreparedSeqno = 649, highPreparedSeqno = 649, maxVisibleSeqno = 648, onDiskPrepares = 16, onDiskPrepareBytes = 2225, checkpointType = Memory, transition = {failovers = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f9e9c2683c0 <Address 0x7f9e9c2683c0 out of bounds>}, _M_string_length = 31, {_M_local_buf = "<\000\000\000\000\000\000\000\003\000\000\000\000\000\000", _M_allocated_capacity = 60}}, replicationTopology = {m_type = nlohmann::detail::null, m_value = {object = 0x0, array = 0x0, string = 0x0, binary = 0x0, boolean = false, number_integer = 0, number_unsigned = 0, number_float = 0}}, state = vbucket_state_dead}}
         maxSeqno = <optimized out>
         maxVbStateOpCas = <optimized out>
         minSeqno = <optimized out>
         flushBatchSize = <optimized out>
         mustPersistVBState = <optimized out>
         hcs = <optimized out>
         hps = <optimized out>
         maxVisibleSeqno = <optimized out>
         aggStats = {numItems = 20, totalBytes = 4806, totalAgeInMilliseconds = 130965379919}
         highSeqno = <optimized out>
 #15 0x000000000081935f in EPBucket::flushVBucket(Vbid) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/ep_bucket.cc:378
         vb = {vb = {<std::__shared_ptr<VBucket, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<VBucket, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = 0x0, _M_refcount = {_M_pi = 0x0}}, <No data fields>}, lock = {_M_device = 0x0, _M_owns = false}}
 #16 0x00000000006dbdf6 in Flusher::flushVB (this=0x7f9e9c372e00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/flusher.cc:293
         checkpointRemovalMode = Eager
         vbid = {vbid = 320}
 #17 0x00000000006dc7b0 in Flusher::step(GlobalTask*) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/flusher.cc:203
         more = <optimized out>
         currentState = Flusher::Running
 #18 0x0000000000aa0829 in GlobalTask::execute(std::basic_string_view<char, std::char_traits<char> >) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/globaltask.cc:98
         guard = {previous = 0x0}
         start = <optimized out>
         runAgain = <optimized out>
 #19 0x0000000000a99eea in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}::operator()() const (__closure=0x7f9e87fed650) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:309
         runAgain = <optimized out>
         proxy = @0x7f9ea9229970: <error reading variable>
 #20 0x0000000000aa1bce in operator() (this=0x7f9e87fed650) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/cancellable_cpu_executor.cc:42
         fn = @0x7f9e87fed650: {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7f9ea9229970, tiny = {__data = "p\231\"\251\236\177\000\000@\327\376\207\236\177\000\000\000\000\000\000\000\000\000\000\240IY\245\236\177\000\000\265\000\000\000\000\000\000\000\r\371\276\000\000\000\000", __align = {<No data fields>}}}, call_ = 0xa9a420 <folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Data&)>, exec_ = 0xa98910 <folly::detail::function::execSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Op, folly::detail::function::Data*, folly::detail::function::Data)>}
 #21 CancellableCPUExecutor::add(GlobalTask*, folly::Function<void ()>)::{lambda()#1}::operator()() const () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/cancellable_cpu_executor.cc:42
         task = {storage_ = {{emptyState = 80 'P', value = {task = 0x7f9e94597e50, func = {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7f9ea9229970, tiny = {__data = "p\231\"\251\236\177\000\000@\327\376\207\236\177\000\000\000\000\000\000\000\000\000\000\240IY\245\236\177\000\000\265\000\000\000\000\000\000\000\r\371\276\000\000\000\000", __align = {<No data fields>}}}, call_ = 0xa9a420 <folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Data&)>, exec_ = 0xa98910 <folly::detail::function::execSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Op, folly::detail::function::Data*, folly::detail::function::Data)>}}}, hasValue = true}}
         this = <optimized out>
 #22 0x0000000000bfeee0 in operator() (this=0x7f9e87fed840) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:416
         fn = @0x7f9e87fed840: {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7f9ea932e000, tiny = {__data = "\000\340\062\251\236\177\000\000\320\347!\255\236\177\000\000\060\000\000\000\000\000\000\000e\023\000\000\000\000\000\000`\000\000\000\000\000\000\000\020\331\376\207\236\177\000", __align = {<No data fields>}}}, call_ = 0xaa1f50 <folly::detail::function::FunctionTraits<void()>::callSmall<CancellableCPUExecutor::add(GlobalTask*, folly::Func)::<lambda()> >(folly::detail::function::Data &)>, exec_ = 0xaa1500 <folly::detail::function::execSmall<CancellableCPUExecutor::add(GlobalTask*, folly::Func)::<lambda()> >(folly::detail::function::Op, folly::detail::function::Data *, folly::detail::function::Data *)>}
 #23 folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) (this=this@entry=0x7f9ea932e100, thread=..., task=task@entry=<unknown type in /usr/lib/debug/opt/couchbase/bin/memcached-7.1.1-3066.x86_64.debug, CU 0xa46554d, DIE 0xa4e9482>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/ThreadPoolExecutor.cpp:97
         rctx = {prev_ = {<std::__shared_ptr<folly::RequestContext, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<folly::RequestContext, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = 0x0, _M_refcount = {_M_pi = 0x0}}, <No data fields>}}
         startTime = {__d = {__r = 6548269372313482}}
         stats = {expired = false, waitTime = {__r = 21184}, runTime = {__r = 0}, enqueueTime = {__d = {__r = 6548269372292298}}, requestId = 0}
 #24 0x0000000000be997a in folly::CPUThreadPoolExecutor::threadRun (this=0x7f9ea932e100, thread=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:265
         task = {storage_ = {{emptyState = 0 '\000', value = {<folly::ThreadPoolExecutor::Task> = {func_ = {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7f9ea932e000, tiny = {__data = "\000\340\062\251\236\177\000\000\320\347!\255\236\177\000\000\060\000\000\000\000\000\000\000e\023\000\000\000\000\000\000`\000\000\000\000\000\000\000\020\331\376\207\236\177\000", __align = {<No data fields>}}}, call_ = 0xaa1f50 <folly::detail::function::FunctionTraits<void()>::callSmall<CancellableCPUExecutor::add(GlobalTask*, folly::Func)::<lambda()> >(folly::detail::function::Data &)>, exec_ = 0xaa1500 <folly::detail::function::execSmall<CancellableCPUExecutor::add(GlobalTask*, folly::Func)::<lambda()> >(folly::detail::function::Op, folly::detail::function::Data *, folly::detail::function::Data *)>}, enqueueTime_ = {__d = {__r = 6548269372292298}}, expiration_ = {__r = 0}, expireCallback_ = {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x1365, tiny = {__data = "e\023\000\000\000\000\000\000+\204\242", '\000' <repeats 13 times>, "_.\001\255\236\177\000\000pj\236\244\236\177\000\000@\306!\255\236\177\000", __align = {<No data fields>}}}, call_ = 0x466dc1 <folly::detail::function::FunctionTraits<void ()>::uninitCall(folly::detail::function::Data&)>, exec_ = 0x0}, context_ = {<std::__shared_ptr<folly::RequestContext, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<folly::RequestContext, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = 0x0, _M_refcount = {_M_pi = 0x0}}, <No data fields>}}, poison = false, priority_ = 0 '\000', queueObserverPayload_ = 140319435786624}}, hasValue = true}}
         guard = {list_ = {forbid = true, prev = 0x0, curr = {name = {static npos = <optimized out>, b_ = 0xcd190b "CPUThreadPoolExecutor", e_ = 0xcd1920 ""}}}}
 #25 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 No locals.
 #26 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 No locals.
 #27 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
 No locals.
 #28 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
 No locals.
 #29 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
         fn = <optimized out>
 #30 0x0000000000a99be4 in operator() (this=0x7f9ea92c2a80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
         fn = @0x7f9ea92c2a80: <error reading variable>
 #31 operator() (__closure=0x7f9ea92c2a80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
         threadNameOpt = {storage_ = {{emptyState = -96 '\240', value = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f9e87fed9a0 "WriterPool1"}, _M_string_length = 11, {_M_local_buf = "WriterPool1\000\000\000\000", _M_allocated_capacity = 8021036716417184343}}}, hasValue = true}}
         func = <error reading variable func (Cannot access memory at address 0x7f9ea92c2a80)>
 #32 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
         fn = @0x7f9ea92c2a80: <error reading variable>
 #33 0x00007f9eaadd9d40 in execute_native_thread_routine () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 No locals.
 #34 0x00007f9eacbe1dd5 in start_thread () from /lib64/libpthread.so.0
 No symbol table info available.
 #35 0x00007f9eaa522ead in clone () from /lib64/libc.so.6
 No symbol table info available.

##############################
running: gdb -p `(pidof memcached)` -ex "thread apply all bt" -ex detach -ex quit
[Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib64/libthread_db.so.1".
 Loaded symbols for /lib64/libpthread.so.0
 Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
 Loaded symbols for /lib64/librt.so.1
 Reading symbols from /opt/couchbase/bin/../lib/liblz4.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/liblz4.so.1.9.2-7.1.1-3066.x86_64.debug...(no debugging symbols found)...done.
 (no debugging symbols found)...done.
 Loaded symbols for /opt/couchbase/bin/../lib/liblz4.so.1
 Reading symbols from /opt/couchbase/bin/../lib/libsnappy.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libsnappy.so.1.1.8-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libsnappy.so.1
 Reading symbols from /opt/couchbase/bin/../lib/libjemalloc.so.2...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libjemalloc.so.2-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libjemalloc.so.2
 Reading symbols from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_core-2.1.so.7.0.0-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libevent_core-2.1.so.7
 Reading symbols from /opt/couchbase/bin/../lib/libevent_extra-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_extra-2.1.so.7.0.0-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libevent_extra-2.1.so.7
 Reading symbols from /opt/couchbase/bin/../lib/libevent_pthreads-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_pthreads-2.1.so.7.0.0-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libevent_pthreads-2.1.so.7
 Reading symbols from /opt/couchbase/bin/../lib/libevent_openssl-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_openssl-2.1.so.7.0.0-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libevent_openssl-2.1.so.7
 Reading symbols from /opt/couchbase/bin/../lib/libssl.so.1.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libssl.so.1.1-7.1.1-3066.x86_64.debug...(no debugging symbols found)...done.
 (no debugging symbols found)...done.
 Loaded symbols for /opt/couchbase/bin/../lib/libssl.so.1.1
 Reading symbols from /opt/couchbase/bin/../lib/libcrypto.so.1.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libcrypto.so.1.1-7.1.1-3066.x86_64.debug...(no debugging symbols found)...done.
 (no debugging symbols found)...done.
 Loaded symbols for /opt/couchbase/bin/../lib/libcrypto.so.1.1
 Reading symbols from /opt/couchbase/bin/../lib/libstdc++.so.6...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libstdc++.so.6.0.28-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libstdc++.so.6
 Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
 Loaded symbols for /lib64/libm.so.6
 Reading symbols from /opt/couchbase/bin/../lib/libgcc_s.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libgcc_s.so.1-7.1.1-3066.x86_64.debug...done.
 done.
 Loaded symbols for /opt/couchbase/bin/../lib/libgcc_s.so.1
 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
 Loaded symbols for /lib64/libc.so.6
 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
 Loaded symbols for /lib64/ld-linux-x86-64.so.2
 0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6

 Thread 30 (Thread 0x7fac33fff700 (LWP 5287)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x00007fac365f35a7 in background_thread_sleep (tsdn=<optimized out>,
     interval=10000000000, info=<optimized out>) at src/background_thread.c:255
 #2  background_work_sleep_once (ind=0, info=<optimized out>,
     tsdn=<optimized out>) at src/background_thread.c:307
 #3  background_thread0_work (tsd=0x7fac33fee220)
     at src/background_thread.c:452
 #4  background_work (ind=<optimized out>, tsd=0x7fac33fee220)
     at src/background_thread.c:490
 #5  background_thread_entry (ind_arg=<optimized out>)
     at src/background_thread.c:522
 #6  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #7  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 29 (Thread 0x7fac331fe700 (LWP 5288)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x0000000000b54bba in __gthread_cond_timedwait (
     __abs_timeout=0x7fac331ec800, __mutex=<optimized out>,
     __cond=0x7fac33634438)
     at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
 #2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fac33634438)
     at /usr/local/include/c++/7.3.0/condition_variable:166
 #3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (
     __atime=..., __lock=..., this=0x7fac33634438)
     at /usr/local/include/c++/7.3.0/condition_variable:106
 #4  wait_until<std::chrono::_V2::system_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, spdlog::details::mpmc_blocking_queue<T>::dequeue_for(T&, std::chrono::milliseconds) [with T = spdlog::details::async_msg]::<lambda()> > (__p=..., __atime=..., __lock=..., this=0x7fac33634438)
     at /usr/local/include/c++/7.3.0/condition_variable:129
 #5  wait_for<long int, std::ratio<1, 1000>, spdlog::details::mpmc_blocking_queue<T>::dequeue_for(T&, std::chrono::milliseconds) [with T = spdlog::details::async_msg]::<lambda()> > (__p=..., __rtime=<synthetic pointer>, __lock=...,
     this=0x7fac33634438)
     at /usr/local/include/c++/7.3.0/condition_variable:145
 #6  dequeue_for (wait_duration=..., popped_item=..., this=0x7fac33634410)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/spdlog/spdlog-prefix/src/spdlog/include/spdlog/details/mpmc_blocking_q.h:58
 #7  spdlog::details::thread_pool::process_next_msg_ (
     this=this@entry=0x7fac33634410)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/spdlog/spdlog-prefix/src/spdlog/include/spdlog/details/thread_pool-inl.h:99
 #8  0x0000000000b54f08 in worker_loop_ (this=0x7fac33634410)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/spdlog/spdlog-prefix/src/spdlog/include/spdlog/details/thread_pool-inl.h:90
 #9  operator() (__closure=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/spdlog/spdlog-prefix/src/spdlog/include/spdlog/details/thread_pool-inl.h:28
 #10 __invoke_impl<void, spdlog::details::thread_pool::thread_pool(size_t, size_t, std::function<void()>)::<lambda()> > (__f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:60
 #11 __invoke<spdlog::details::thread_pool::thread_pool(size_t, size_t, std::function<void()>)::<lambda()> > (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #12 _M_invoke<0> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/thread:234
 #13 operator() (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/thread:243
 #14 std::thread::_State_impl<std::thread::_Invoker<std::tuple<spdlog::details::thread_pool::thread_pool(size_t, size_t, std::function<void()>)::<lambda()> > > >::_M_run(void) (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/thread:186
 #15 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #16 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #17 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 28 (Thread 0x7fac329fd700 (LWP 5289)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x0000000000b5497a in __gthread_cond_timedwait (
     __abs_timeout=0x7fac329eb9b0, __mutex=<optimized out>,
     __cond=0x7fac33623268)
     at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
 #2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fac33623268)
     at /usr/local/include/c++/7.3.0/condition_variable:166
 #3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (
     __atime=..., __lock=..., this=0x7fac33623268)
     at /usr/local/include/c++/7.3.0/condition_variable:106
 #4  wait_until<std::chrono::_V2::system_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()>::<lambda()> >
     (__p=..., __atime=..., __lock=..., this=0x7fac33623268)
     at /usr/local/include/c++/7.3.0/condition_variable:129
 #5  wait_for<long int, std::ratio<1>, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()>::<lambda()> > (__p=..., __rtime=..., __lock=..., this=0x7fac33623268)
     at /usr/local/include/c++/7.3.0/condition_variable:145
 #6  operator() (__closure=0x7fac33635888)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/spdlog/spdlog-prefix/src/spdlog/include/spdlog/details/periodic_worker-inl.h:25
 #7  __invoke_impl<void, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()> > (
     __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:60
 #8  __invoke<spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()> > (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #9  _M_invoke<0> (this=0x7fac33635888)
     at /usr/local/include/c++/7.3.0/thread:234
 #10 operator() (this=0x7fac33635888)
     at /usr/local/include/c++/7.3.0/thread:243
 #11 std::thread::_State_impl<std::thread::_Invoker<std::tuple<spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()> > > >::_M_run(void) (this=0x7fac33635880)
     at /usr/local/include/c++/7.3.0/thread:186
 #12 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #13 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #14 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 27 (Thread 0x7fac321fc700 (LWP 5290)):
 #0  0x00007fac34a1c20d in poll () from /lib64/libc.so.6
 #1  0x00000000005ab861 in get_command (buffsize=80,
     buffer=0x7fac321ea990 "@\006r7\254\177")
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/stdin_check.cc:57
 #2  check_stdin_thread (arg=<optimized out>)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/stdin_check.cc:98
 #3  0x0000000000b8d7b9 in run (this=0x7fac336218f0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #4  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #5  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 26 (Thread 0x7fac2bfff700 (LWP 5294)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x00000000005f2976 in __gthread_cond_timedwait (
     __abs_timeout=0x7fac2bfed980, __mutex=0x7fac3364b350,
     __cond=0x7fac3364b378)
     at /opt/gcc-10.2.0/include/c++/10.2.0/x86_64-pc-linux-gnu/bits/gthr-default.h:872
 #2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__lock=<synthetic pointer>, __lock=<synthetic pointer>,
     __atime=<synthetic pointer>, this=0x7fac3364b378)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:232
 #3  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=<synthetic pointer>,
     this=0x7fac3364b378)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:141
 #4  wait_for<long, std::ratio<1, 1000000000> > (__rtime=<synthetic pointer>,
     __lock=<synthetic pointer>, this=0x7fac3364b378)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:172
 #5  ExternalAuthManagerThread::run() ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/external_auth_manager_thread.cc:91
 #6  0x0000000000ba54b3 in Couchbase::Thread::thread_entry() ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:38
 #7  0x0000000000b8d7b9 in run (this=0x7fac33621cb0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #8  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #9  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 25 (Thread 0x7fac2b3fe700 (LWP 5295)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x000000000067ae47 in __gthread_cond_timedwait (
     __abs_timeout=0x7fac2b3ec9b0, __mutex=<optimized out>,
     __cond=0x7fac33698cf8)
     at /opt/gcc-10.2.0/include/c++/10.2.0/x86_64-pc-linux-gnu/bits/gthr-default.h:872
 #2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__lock=..., __lock=..., __atime=<synthetic pointer>, this=0x7fac33698cf8)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:232
 #3  wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fac33698cf8)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:141
 #4  wait_for<long, std::ratio<1> > (__rtime=..., __rtime=..., __lock=...,
     this=0x7fac33698cf8)
     at /opt/gcc-10.2.0/include/c++/10.2.0/condition_variable:172
 #5  AuditImpl::consume_events() ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/auditd/src/audit.cc:411
 #6  0x0000000000b8d7b9 in run (this=0x7fac33621c50)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #7  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #8  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #9  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 24 (Thread 0x7fac309f9700 (LWP 5296)):
 #0  0x00007fac370e9965 in pthread_cond_wait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x0000000000ad3bdb in consume_socket (thread_index=<optimized out>,
     sp=0x1b58d80, ctx=0x1b5a5d0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18846
 #2  worker_thread_run (conn=0x1b58490)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18987
 #3  worker_thread (thread_func_param=0x1b58490)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19145
 #4  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 23 (Thread 0x7fac311fa700 (LWP 5297)):
 #0  0x00007fac370e9965 in pthread_cond_wait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x0000000000ad3bdb in consume_socket (thread_index=<optimized out>,
     sp=0x1b59768, ctx=0x1b5a5d0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18846
 #2  worker_thread_run (conn=0x1b58e78)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18987
 #3  worker_thread (thread_func_param=0x1b58e78)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19145
 #4  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #5  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 22 (Thread 0x7fac319fb700 (LWP 5298)):
 #0  0x00007fac34a1c20d in poll () from /lib64/libc.so.6
 #1  0x0000000000acab48 in master_thread_run (ctx=0x1b5a5d0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19291
 #2  master_thread (thread_func_param=0x1b5a5d0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19386
 #3  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #4  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 21 (Thread 0x7fac2abfd700 (LWP 5299)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33666900,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33666900, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac336ff010, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac336ff010)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (
     this=this@entry=0x7fac336ff010)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x00000000005b0a89 in worker_libevent (arg=0x7fac336ff000)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:115
 #7  0x0000000000b8d7b9 in run (this=0x7fac33621f80)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #8  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #9  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 20 (Thread 0x7fac2a3fc700 (LWP 5300)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33666c00,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33666c00, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac336ffbe0, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac336ffbe0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (
     this=this@entry=0x7fac336ffbe0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x00000000005b0a89 in worker_libevent (arg=0x7fac336ffbd0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:115
 #7  0x0000000000b8d7b9 in run (this=0x7fac33621e30)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #8  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #9  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 19 (Thread 0x7fac29bfb700 (LWP 5301)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33666f00,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33666f00, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac337007b0, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac337007b0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (
     this=this@entry=0x7fac337007b0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x00000000005b0a89 in worker_libevent (arg=0x7fac337007a0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:115
 #7  0x0000000000b8d7b9 in run (this=0x7fac33622130)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #8  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #9  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 18 (Thread 0x7fac293fa700 (LWP 5302)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33667200,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33667200, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac33701380, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac33701380)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (
     this=this@entry=0x7fac33701380)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x00000000005b0a89 in worker_libevent (arg=0x7fac33701370)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:115
 #7  0x0000000000b8d7b9 in run (this=0x7fac33622160)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:51
 #8  platform_thread_wrap(void*) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:64
 #9  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #10 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 17 (Thread 0x7fac22bff700 (LWP 5303)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=582931992,
     absSteadyTime=absSteadyTime@entry=0x7fac22bed5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db048)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db048,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac22bed618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db048)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db048, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db048, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5dbc0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5dbc0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5db80, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac336fe500, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6900)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6900)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 16 (Thread 0x7fac223fe700 (LWP 5304)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=574539288,
     absSteadyTime=absSteadyTime@entry=0x7fac223ec5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db180)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db180,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac223ec618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db180)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db180, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db180, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5dbc0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5dbc0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5db80, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac336fe500, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6940)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6940)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 15 (Thread 0x7fac21bfd700 (LWP 5305)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=566146584,
     absSteadyTime=absSteadyTime@entry=0x7fac21beb5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db018)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db018,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac21beb618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db018)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db018, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db018, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5dbc0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5dbc0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5db80, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac336fe500, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6980)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6980)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 14 (Thread 0x7fac213fc700 (LWP 5306)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=557753880,
     absSteadyTime=absSteadyTime@entry=0x7fac213ea5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db1b0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db1b0,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac213ea618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db1b0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db1b0, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db1b0, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5dbc0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5dbc0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5db80, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac336fe500, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6a00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6a00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 13 (Thread 0x7fac20bfb700 (LWP 5307)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=549361176,
     absSteadyTime=absSteadyTime@entry=0x7fac20be95f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db978)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db978,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac20be9618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db978)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db978, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef6c7 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...,
     _ret=<synthetic pointer>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
 #6  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
 #7  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db978, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #8  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #9  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5e8c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #10 0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5e8c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #11 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5e880, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #12 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724100, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #13 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #14 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #15 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #16 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #17 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #18 0x0000000000a99be4 in operator() (this=0x7fac336c6b00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 operator() (__closure=0x7fac336c6b00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #20 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #21 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #22 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #23 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 12 (Thread 0x7fac1a7da700 (LWP 5308)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=444368408,
     absSteadyTime=absSteadyTime@entry=0x7fac1a7c85f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db3f0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db3f0,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac1a7c8618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db3f0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db3f0, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef6c7 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...,
     _ret=<synthetic pointer>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
 #6  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
 #7  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db3f0, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #8  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #9  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5e8c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #10 0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5e8c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #11 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5e880, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #12 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724100, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #13 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #14 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #15 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #16 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #17 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #18 0x0000000000a99be4 in operator() (this=0x7fac336c6b40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 operator() (__closure=0x7fac336c6b40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #20 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #21 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #22 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #23 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 11 (Thread 0x7fac19fd9700 (LWP 5309)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=435975704,
     absSteadyTime=absSteadyTime@entry=0x7fac19fc75f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db210)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db210,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac19fc7618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db210)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db210, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db210, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5e8c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5e8c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5e880, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724100, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6b80)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6b80)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 10 (Thread 0x7fac197d8700 (LWP 5310)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=427583000,
     absSteadyTime=absSteadyTime@entry=0x7fac197c65f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db9c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db9c0,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac197c6618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db9c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db9c0, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db9c0, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5e8c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5e8c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5e880, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724100, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6c40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6c40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 9 (Thread 0x7fac18fd7700 (LWP 5311)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=419190296,
     absSteadyTime=absSteadyTime@entry=0x7fac18fc55f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db0d8)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db0d8,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fac18fc5618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db0d8)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db0d8, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db0d8, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5f5c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5f5c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5f580, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724d00, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6d00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6d00)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 8 (Thread 0x7fabfffff700 (LWP 5312)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=4294891032,
     absSteadyTime=absSteadyTime@entry=0x7fabfffed5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db870)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db870,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fabfffed618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db870)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db870, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db870, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5f5c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5f5c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5f580, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724d00, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac336c6d40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac336c6d40)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 7 (Thread 0x7fabff7fe700 (LWP 5313)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=4286498328,
     absSteadyTime=absSteadyTime@entry=0x7fabff7ec5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db930)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db930,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fabff7ec618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db930)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db930, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db930, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5f5c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5f5c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5f580, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724d00, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac337990c0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac337990c0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 6 (Thread 0x7fabfeffd700 (LWP 5314)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=4278105624,
     absSteadyTime=absSteadyTime@entry=0x7fabfefeb5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db948)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db948,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fabfefeb618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db948)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db948, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef58d in futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024,
     idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:164
 #6  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db948, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #7  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #8  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b5f5c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #9  0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b5f5c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #10 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b5f580, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #11 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33724d00, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #12 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #13 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #14 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #15 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #16 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #17 0x0000000000a99be4 in operator() (this=0x7fac337999c0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #18 operator() (__closure=0x7fac337999c0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #20 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #21 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #22 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 5 (Thread 0x7fabfe7fc700 (LWP 5315)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=4269712920,
     absSteadyTime=absSteadyTime@entry=0x7fabfe7ea5f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db900)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db900,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fabfe7ea618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db900)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db900, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef6c7 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...,
     _ret=<synthetic pointer>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
 #6  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
 #7  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db900, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #8  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #9  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b602c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #10 0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b602c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #11 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b60280, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #12 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33725900, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #13 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #14 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #15 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #16 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #17 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #18 0x0000000000a99be4 in operator() (this=0x7fac33799a80)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 operator() (__closure=0x7fac33799a80)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #20 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #21 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #22 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #23 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 4 (Thread 0x7fabfdffb700 (LWP 5316)):
 #0  0x00007fac34a211c9 in syscall () from /lib64/libc.so.6
 #1  0x0000000000be169d in nativeFutexWaitImpl (
     waitMask=waitMask@entry=4261320216,
     absSteadyTime=absSteadyTime@entry=0x7fabfdfe95f8,
     absSystemTime=absSystemTime@entry=0x0, expected=expected@entry=2,
     addr=addr@entry=0x7fac1a7db6c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:123
 #2  folly::detail::futexWaitImpl (futex=futex@entry=0x7fac1a7db6c0,
     expected=expected@entry=2, absSystemTime=absSystemTime@entry=0x0,
     absSteadyTime=absSteadyTime@entry=0x7fabfdfe9618,
     waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex.cpp:254
 #3  0x0000000000beaf5a in futexWaitImpl<std::atomic<unsigned int> const, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (waitMask=4294967295, deadline=...,
     expected=2, futex=0x7fac1a7db6c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:85
 #4  folly::detail::futexWaitUntil<std::atomic<unsigned int>, std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     futex=futex@entry=0x7fac1a7db6c0, expected=expected@entry=2,
     deadline=..., waitMask=waitMask@entry=4294967295)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/Futex-inl.h:123
 #5  0x0000000000bef6c7 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...,
     _ret=<synthetic pointer>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
 #6  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=...,
     waitMask=4294967295, deadline=..., expected=2, fut=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
 #7  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (
     this=this@entry=0x7fac1a7db6c0, deadline=..., opt=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
 #8  0x0000000000befbf6 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=...,
     this=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
 #9  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x1b602c0,
     deadline=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
 #10 0x0000000000bf26b0 in try_wait_for<long, std::ratio<1, 1000> > (
     timeout=<synthetic pointer>, this=0x1b602c0)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
 #11 folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x1b60280, time=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
 #12 0x0000000000be9907 in folly::CPUThreadPoolExecutor::threadRun (
     this=0x7fac33725900, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
 #13 0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #14 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #15 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #16 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #17 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #18 0x0000000000a99be4 in operator() (this=0x7fac33799ac0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #19 operator() (__closure=0x7fac33799ac0)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:49
 #20 folly::detail::function::FunctionTraits<void ()>::callBig<CBRegisteredThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
 #21 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #22 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #23 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 3 (Thread 0x7fabfd7fa700 (LWP 5317)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33667500,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33667500, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac3364bf00, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac3364bf00)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (this=0x7fac3364bf00)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x0000000000bf6709 in folly::IOThreadPoolExecutor::threadRun (
     this=0x7fac3364b780, thread=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/IOThreadPoolExecutor.cpp:195
 #7  0x0000000000c01e99 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
     __t=<optimized out>, __f=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:73
 #8  __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
     at /usr/local/include/c++/7.3.0/bits/invoke.h:95
 #9  __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:467
 #10 operator()<> (this=<optimized out>)
     at /usr/local/include/c++/7.3.0/functional:551
 #11 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
 #12 0x00007fac352ddd40 in execute_native_thread_routine ()
     at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
 #13 0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #14 0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 2 (Thread 0x7fabfcff9700 (LWP 5318)):
 #0  0x00007fac370e9d12 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
    from /lib64/libpthread.so.0
 #1  0x00007fac365f2e51 in background_thread_sleep (tsdn=<optimized out>,
     interval=10000000000, info=<optimized out>) at src/background_thread.c:255
 #2  background_work_sleep_once (ind=<optimized out>, info=<optimized out>,
     tsdn=<optimized out>) at src/background_thread.c:307
 #3  background_work (ind=<optimized out>, tsd=0x7fabfcfe8220)
     at src/background_thread.c:497
 #4  background_thread_entry (ind_arg=<optimized out>)
     at src/background_thread.c:522
 #5  0x00007fac370e5dd5 in start_thread () from /lib64/libpthread.so.0
 #6  0x00007fac34a26ead in clone () from /lib64/libc.so.6

 Thread 1 (Thread 0x7fac3821ec40 (LWP 5286)):
 #0  0x00007fac34a27483 in epoll_wait () from /lib64/libc.so.6
 #1  0x00007fac363ba3c5 in epoll_dispatch (base=0x7fac33666300,
     tv=<optimized out>)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
 #2  0x00007fac363b1376 in event_base_loop (base=0x7fac33666300, flags=1)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
 #3  0x0000000000c085c7 in folly::EventBase::loopBody (
     this=this@entry=0x7fac3364b500, flags=flags@entry=0,
     ignoreKeepAlive=ignoreKeepAlive@entry=false)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:397
 #4  0x0000000000c08a96 in folly::EventBase::loop (
     this=this@entry=0x7fac3364b500)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:315
 #5  0x0000000000c0a456 in folly::EventBase::loopForever (this=0x7fac3364b500)
     at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/io/async/EventBase.cpp:538
 #6  0x0000000000569323 in memcached_main(int, char**) ()
     at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/memcached.cc:1033
 #7  0x00007fac3494b3d5 in __libc_start_main () from /lib64/libc.so.6
 #8  0x0000000000561627 in _start ()
     at /opt/gcc-10.2.0/include/c++/10.2.0/bits/char_traits.h:322
 Detaching from program: /opt/couchbase/bin/memcached, process 5286