[NexusKVStore] Memcached aborted in NexusSecondaryCacheLookup::callback (this=0x7fd0179dcf20, val=...)

(gdb) bt full

#0  0x00007fd0f5d43a35 in __memcpy_ssse3_back () from /lib64/libc.so.6

No symbol table info available.

#1  0x0000000000a3e44b in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()

No symbol table info available.

#2  0x000000000090f58a in assign (__str=..., this=0x7fd09b7ebe60)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kvstore/nexus-kvstore/nexus-kvstore.cc:2057

No locals.

#3  operator= (__str=..., this=0x7fd09b7ebe60) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/basic_string.h:667

No locals.

#4  operator= (this=0x7fd09b7ebe60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/diskdockey.h:32

No locals.

#5  operator= (this=0x7fd09b7ebe60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/callbacks.h:24

No locals.

#6  operator=<CacheLookup, cb::engine_errc> (__in=..., this=<optimized out>) at /opt/gcc-10.2.0/include/c++/10.2.0/tuple:1219

No locals.

#7  NexusSecondaryCacheLookup::callback (this=0x7fd0179dcf20, val=...)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kvstore/nexus-kvstore/nexus-kvstore.cc:2057

No locals.

#8  0x000000000087d865 in MagmaKVStore::scan(BySeqnoScanContext&) const ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kvstore/magma-kvstore/magma-kvstore.cc:1749

        lookup = {key = {keydata = {static npos = 18446744073709551615,

              _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},

                _M_p = 0x7fd0983e6860 <Address 0x7fd0983e6860 out of bounds>}, _M_string_length = 23, {

                _M_local_buf = "\027\000\000\000\000\000\000\000\300\202\006G\320\177\000", _M_allocated_capacity = 23}}}, bySeqno = 21997, vbid = {

            vbid = 1017}}

        metaSlice = {data = 0x7fd0e02949ac <Address 0x7fd0e02949ac out of bounds>, len = 28}

        rv = {item = {_M_t = {<std::__uniq_ptr_impl<Item, std::default_delete<Item> >> = {

                _M_t = {<std::_Tuple_impl<0, Item*, std::default_delete<Item> >> = {<std::_Tuple_impl<1, std::default_delete<Item> >> = {<std::_Head_base<1, std::default_delete<Item>, true>> = {<std::default_delete<Item>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, Item*, false>> = {_M_head_impl = 0x7fd002e46280}, <No data fields>}, <No data fields>}}, <No data fields>}}, id = 18446744073709551615,

          status = cb::success, partial = false}

        keySlice = {data = 0x7fd0e0294994 <Address 0x7fd0e0294994 out of bounds>, len = 23}

        valSlice = {data = 0x7fcfcafd1622 <Address 0x7fcfcafd1622 out of bounds>, len = 0}

        seqno = 21997

        diskKey = {keydata = {static npos = 18446744073709551615,

            _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},

              _M_p = 0x7fd070402920 <Address 0x7fd070402920 out of bounds>}, _M_string_length = 23, {

              _M_local_buf = "\027\000\000\000\000\000\000\000ection\000", _M_allocated_capacity = 23}}}

---Type <return> to continue, or q <return> to quit---

        docKey = {<DocKeyInterface<DocKey>> = {<No data fields>}, buffer = {static npos = <optimized out>,

            buf = 0x7fd070402920 <Address 0x7fd070402920 out of bounds>, len = 23}, encoding = Yes}

        itm = {_M_t = {<std::__uniq_ptr_impl<Item, std::default_delete<Item> >> = {

              _M_t = {<std::_Tuple_impl<0, Item*, std::default_delete<Item> >> = {<std::_Tuple_impl<1, std::default_delete<Item> >> = {<std::_Head_base<1, std::default_delete<Item>, true>> = {<std::default_delete<Item>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, Item*, false>> = {_M_head_impl = 0x0}, <No data fields>}, <No data fields>}}, <No data fields>}}

        callbackStatus = <optimized out>

        startSeqno = <optimized out>

        onlyKeys = <optimized out>

        mctx = @0x7fd025217f40: <error reading variable>

#9  0x00000000008f35de in NexusKVStore::scan(BySeqnoScanContext&) const ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kvstore/nexus-kvstore/nexus-kvstore.cc:2358

        nexusCtx = @0x7fcfeb61ab80: <error reading variable>

        primaryCtx = @0x7fcffeae14e0: <error reading variable>

        secondaryCtx = @0x7fd025217f40: <error reading variable>

        primaryScanResult = scan_again

        secondaryScanResult = <optimized out>

        primaryScanCallback = <optimized out>

        primaryCacheLookup = <optimized out>

#10 0x00000000008d628d in DCPBackfillBySeqnoDisk::scan() ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/backfill_by_seqno_disk.cc:173

        stream = {<std::__shared_ptr<ActiveStream, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<ActiveStream, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x7fcff4da6000}}, <No data fields>}

        kvstore = 0x7fd0e025c860

        bySeqnoCtx = @0x7fcfeb61ab80: <error reading variable>

#11 0x00000000008d9c42 in DCPBackfillDisk::run() ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/backfill_disk.cc:131

        lh = {_M_device = @0x7fd09878c588}

        runtimeGuard = {<folly::detail::ScopeGuardImplBase> = {dismissed_ = false}, function_ = {__start = {__d = {__r = 8530938467628964}},

            __this = 0x7fd09878c580}}

#12 0x00000000008db661 in BackfillManager::backfill() ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/backfill-manager.cc:344

        lh = {_M_device = <optimized out>, _M_owns = false}

        backfill = {_M_t = {<std::__uniq_ptr_impl<DCPBackfillIface, std::default_delete<DCPBackfillIface> >> = {

              _M_t = {<std::_Tuple_impl<0, DCPBackfillIface*, std::default_delete<DCPBackfillIface> >> = {<std::_Tuple_impl<1, std::default_delete<DCPBackfillIface> >> = {<std::_Head_base<1, std::default_delete<DCPBackfillIface>, true>> = {<std::default_delete<DCPBackfillIface>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, DCPBackfillIface*, false>> = {

                    _M_head_impl = 0x7fd09878c5d8}, <No data fields>}, <No data fields>}}, <No data fields>}}

        source = BackfillManager::Active

---Type <return> to continue, or q <return> to quit---

        status = <optimized out>

#13 0x00000000008dbe04 in BackfillManagerTask::run() ()

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/backfill-manager.cc:78

        phosphor_internal_category_enabled_67 = {_M_b = {_M_p = 0x0}, static is_always_lock_free = <optimized out>}

        phosphor_internal_category_enabled_temp_67 = <optimized out>

        phosphor_internal_tpi_67 = {category = 0x0, name = 0x0, type = phosphor::AsyncStart, argument_names = {_M_elems = {0x0, 0x0}},

          argument_types = {_M_elems = {phosphor::is_bool, phosphor::is_bool}}}

        phosphor_internal_guard_67 = {tpi = 0x1073320 <BackfillManagerTask::run()::phosphor_internal_tpi_67>, enabled = true,

          arg1 = {<No data fields>}, arg2 = {<No data fields>}, start = {__d = {__r = 8530938467626820}}}

        manager = {<std::__shared_ptr<BackfillManager, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<BackfillManager, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x7fcffbf59200}}, <No data fields>}

        status = <optimized out>

#14 0x0000000000ab1962 in GlobalTask::execute() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/globaltask.cc:68

        guard = {previous = 0x0}

#15 0x0000000000aaea65 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}::operator()() const (__closure=0x7fd09b7ec840)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:189

        scheduleOverhead = <optimized out>

        start = {__d = {__r = 8530938467625523}}

        runAgain = false

        proxy = @0x7fd0e803aed0: <error reading variable>

#16 0x0000000000c02f10 in operator() (this=0x7fd09b7ec840)

    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:416

        fn = @0x7fd09b7ec840: {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7fd0e803aed0, tiny = {

              __data = "\320\256\003\350\320\177\000\000\000\000\000\000\000\000\000\000\260+-\350\320\177\000\000T\326", '\000' <repeats 14 times>, "\020\311~\233\320\177\000", __align = {<No data fields>}}},

          call_ = 0xaaf120 <folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Data&)>,

          exec_ = 0xaad870 <folly::detail::function::execSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Op, folly::detail::function::Data*, folly::detail::function::Data)>}

#17 folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) (

    this=this@entry=0x7fd0f4551000, thread=...,

    task=task@entry=<unknown type in /usr/lib/debug/opt/couchbase/bin/memcached-7.1.0-2150.x86_64.debug, CU 0xa344264, DIE 0xa3c8199>)

    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 = 8530938467622417}}

        stats = {expired = false, waitTime = {__r = 14844}, runTime = {__r = 0}, enqueueTime = {__d = {__r = 8530938467607573}}, requestId = 0}

---Type <return> to continue, or q <return> to quit---

#18 0x0000000000bed84a in folly::CPUThreadPoolExecutor::threadRun (this=0x7fd0f4551000, 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 = -48 '\320', value = {<folly::ThreadPoolExecutor::Task> = {

                  func_ = {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7fd0e803aed0, tiny = {

                        __data = "\320\256\003\350\320\177\000\000\000\000\000\000\000\000\000\000\260+-\350\320\177\000\000T\326", '\000' <repeats 14 times>, "\020\311~\233\320\177\000", __align = {<No data fields>}}},

                    call_ = 0xaaf120 <folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Data&)>,

                    exec_ = 0xaad870 <folly::detail::function::execSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Op, folly::detail::function::Data*, folly::detail::function::Data)>}, enqueueTime_ = {__d = {__r = 8530938467607573}}, expiration_ = {

                    __r = 0}, expireCallback_ = {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0xd654,

                      tiny = {

                        __data = "T\326\000\000\000\000\000\000K\344\243", '\000' <repeats 13 times>, "_\336}\370\320\177\000\000p\332\376\276\320\177\000\000@v\236\370\320\177\000", __align = {<No data fields>}}}, call_ = 0x466655

     <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_ = 140535448749520}}, hasValue = true}}

        guard = {list_ = {forbid = true, prev = 0x0, curr = {name = {static npos = <optimized out>, b_ = 0xcd4eab "CPUThreadPoolExecutor",

                e_ = 0xcd4ec0 ""}}}}

#19 0x0000000000c05ec9 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.

#20 __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.

#21 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467

No locals.

#22 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551

No locals.

#23 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>

#24 0x0000000000aae6f4 in operator() (this=0x7fd0f49d8cc0)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:47

        fn = @0x7fd0f49d8cc0: <error reading variable>

---Type <return> to continue, or q <return> to quit---

#25 operator() (__closure=0x7fd0f49d8cc0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:47

        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 = 0x7fd09b7ec9a0 "AuxIoPool5"}, _M_string_length = 10, {_M_local_buf = "AuxIoPool5\000\000\000\000\000",

                  _M_allocated_capacity = 8029725099529106753}}}, hasValue = true}}

        func = <error reading variable func (Cannot access memory at address 0x7fd0f49d8cc0)>

#26 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 = @0x7fd0f49d8cc0: <error reading variable>

#27 0x00007fd0f65a4d40 in execute_native_thread_routine () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80

No locals.

#28 0x00007fd0f83ace65 in start_thread () from /lib64/libpthread.so.0

No symbol table info available.

#29 0x00007fd0f5ced88d in clone () from /lib64/libc.so.6

No symbol table info available.

git fetch "https://review.couchbase.org/TAF" refs/changes/88/166488/1 && git checkout FETCH_HEAD

guides/gradlew --refresh-dependencies testrunner -P jython=/opt/jython/bin/jython -P 'args=-i /tmp/qe_r.ini -p bucket_storage=couchstore,rerun=false,bucket_eviction_policy=fullEviction,init_loading=False -t storage.magma.magma_rebalance.MagmaRebalance.test_data_load_collections_with_rebalance_out,num_items=700000,doc_size=512,nodes_init=2,nodes_out=1,standard_buckets=1,magma_buckets=0,bucket_storage=couchstore,data_load_stage=during,sdk_timeout=60,vbuckets=1024,key_size=22,replicas=0,infra_log_level=debug,log_level=debug,skip_cleaup=True,randomize_value=True,bucket_eviction_policy=fullEviction,infra_log_level=debug,log_level=debug,init_loading=False,fragmentation=50,skip_cleanup=True,autoCompactionDefined=true,iterations=1,enable_dp=True,num_collections=10,num_scopes=10,bucket_ram_quota=2056,skip_cleanup=True,sdk_client_pool=False,ops_rate=30000,doc_ops=create,create_perc=0,delete_perc=50,update_perc=50,num_collections_to_drop=5,get-cbcollect-info=True -m rest'