GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-120.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/couchbase/bin/memcached...Reading symbols from /usr/lib/debug/opt/couchbase/bin/memcached.debug...done.
done.
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Core was generated by `/opt/couchbase/bin/memcached -C /opt/couchbase/var/lib/couchbase/config/memcach'.
#0  0x00007fe431ab5387 in __bsd_signal (sig=18163, handler=0x5c95) at ../sysdeps/posix/signal.c:50
50	}
#0  0x00007fe431ab5387 in __bsd_signal (sig=18163, handler=0x5c95) at ../sysdeps/posix/signal.c:50
        act = <error reading variable act (Cannot access memory at address 0x7fe3a3febef0)>
        oact = <error reading variable oact (Cannot access memory at address 0x7fe3a3febf90)>
#1  0x00007fe431ab6a78 in __GI_abort () at abort.c:79
        act = {__sigaction_handler = {sa_handler = 0x7fe431e471c0 <_IO_2_1_stderr_>, sa_sigaction = 0x7fe431e471c0 <_IO_2_1_stderr_>}, sa_mask = {__val = {140618063342121, 0, 140618062860899, 140618073209442, 140618066325952, 1, 
              140618066326083, 140618066310016, 140618062867070, 140618066325952, 10, 140615551552608, 0, 140615685685744, 140618062868339, 140618066325952}}, sa_flags = 843099152, sa_restorer = 0xfcdf60 <stderr>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fe43240063c 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  0x0000000000aaa91b in backtrace_terminate_handler() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/utilities/terminate_handler.cc:88
No locals.
#4  0x00007fe43240b8f6 in __cxxabiv1::__terminate(void (*)()) () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:48
No locals.
#5  0x00007fe43240b961 in std::terminate () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_terminate.cc:58
No locals.
#6  0x00007fe43240bbf4 in __cxxabiv1::__cxa_throw (obj=<optimized out>, tinfo=0xfcdee0 <typeinfo for std::bad_alloc>, dest=0x441600 <_ZNSt9bad_allocD1Ev@plt>) at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/libsupc++/eh_throw.cc:95
        globals = <optimized out>
        header = 0x7fe39c000e70
#7  0x0000000000529667 in operator new (count=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/global_new_replacement.cc:65
        result = <optimized out>
#8  0x000000000099e484 in _M_construct<char*> (__end=0xffc6eaf2c680 <Address 0xffc6eaf2c680 out of bounds>, __beg=0x7fe375796340 <Address 0x7fe375796340 out of bounds>, this=0x7fe3a3fec410)
    at /opt/gcc-10.2.0/include/c++/10.2.0/bits/char_traits.h:389
        __dnew = 140614905193280
#9  _M_construct_aux<char*> (__end=0xffc6eaf2c680 <Address 0xffc6eaf2c680 out of bounds>, __beg=0x7fe375796340 <Address 0x7fe375796340 out of bounds>, this=0x7fe3a3fec410) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/basic_string.h:247
No locals.
#10 _M_construct<char*> (__end=0xffc6eaf2c680 <Address 0xffc6eaf2c680 out of bounds>, __beg=0x7fe375796340 <Address 0x7fe375796340 out of bounds>, this=0x7fe3a3fec410) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/basic_string.h:266
No locals.
#11 basic_string (__str=..., this=0x7fe3a3fec410) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/basic_string.h:451
No locals.
#12 GetMeta (this=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/lsm/tree_snapshot.h:113
No locals.
#13 GetMeta (this=0x7fe3a3fec420) at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/lsm/checkpoint.cc:454
No locals.
#14 magma::Checkpoint::String[abi:cxx11]() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/lsm/checkpoint.cc:564
No locals.
#15 0x0000000000936484 in magma::KVStoreCheckpoint::String[abi:cxx11]() (this=0x7fe3775d1cc0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.h:446
No locals.
#16 0x000000000092f790 in magma::KVStore::getAllCheckpoints(std::vector<magma::KVStoreCheckpoint, std::allocator<magma::KVStoreCheckpoint> >&) ()
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.cc:1408
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#17 0x00000000009308c4 in magma::KVStore::verifyCheckpoints() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.cc:1469
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#18 0x0000000000931236 in magma::KVStore::flushMemTables(magma::WAL*, magma::WALOffset, magma::FlushMode, magma::BlockingMode)::{lambda()#2}::operator()() ()
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.cc:503
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#19 0x0000000000931a0d in magma::KVStore::flushMemTables(magma::WAL*, magma::WALOffset, magma::FlushMode, magma::BlockingMode) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.cc:514
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#20 0x0000000000931f48 in magma::KVStore::FlushMemTables (this=<optimized out>, wal=<optimized out>, flushMode=<optimized out>, blockMode=<optimized out>)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/kvstore/kvstore.cc:336
        offset = {SegID = 11817106429041475555, SegOffset = 32739}
#21 0x00000000008dd5c5 in magma::Magma::Impl::syncKVStore(unsigned short, bool) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/db.cc:1133
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#22 0x00000000008ddb5e in magma::Magma::Impl::CompactKVStore(unsigned short, magma::Magma::StoreType, std::function<std::unique_ptr<magma::Magma::CompactionCallback, std::default_delete<magma::Magma::CompactionCallback> > (unsigned short)>) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/db.cc:746
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#23 0x00000000008ddaf8 in magma::Magma::Impl::CompactKVStore(unsigned short, magma::Magma::StoreType, std::function<std::unique_ptr<magma::Magma::CompactionCallback, std::default_delete<magma::Magma::CompactionCallback> > (unsigned short)>) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/db.cc:725
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#24 0x00000000008dddd5 in magma::Magma::Impl::CompactKVStore(unsigned short, magma::Slice const&, magma::Slice const&, std::function<std::unique_ptr<magma::Magma::CompactionCallback, std::default_delete<magma::Magma::CompactionCallback> > (unsigned short)>) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/magma/db.cc:773
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#25 0x00000000008de0dd in magma::Magma::CompactKVStore(unsigned short, magma::Slice const&, magma::Slice const&, std::function<std::unique_ptr<magma::Magma::CompactionCallback, std::default_delete<magma::Magma::CompactionCallback> > (unsigned short)>) () at /opt/gcc-10.2.0/include/c++/10.2.0/bits/std_function.h:248
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
#26 0x000000000085629e in MagmaMemoryTrackingProxy::CompactKVStore(unsigned short, magma::Slice const&, magma::Slice const&, std::function<std::unique_ptr<magma::Magma::CompactionCallback, std::default_delete<magma::Magma::CompactionCallback> > (unsigned short)>) () at /opt/gcc-10.2.0/include/c++/10.2.0/bits/std_function.h:248
        domainGuard = {previous = cb::Primary}
#27 0x000000000084d46d in MagmaKVStore::compactDBInternal(std::unique_lock<std::mutex>&, std::shared_ptr<CompactionContext>) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/include/memcached/vbucket.h:62
        cb::userdataStartTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        NoopSeqnoAckCb = {<std::_Maybe_unary_or_binary_function<void, Vbid, long>> = {<std::binary_function<Vbid, long, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        LocalDocKey::droppedCollections = {static npos = <optimized out>, _M_len = 0, _M_str = 0x0}
        ImmediateCkptDisposer = {<std::_Maybe_unary_or_binary_function<void, boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&>> = {<std::unary_function<boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&, void>> = {<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 = 0x0, 
                _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        NoopSyncWriteCompleteCb = {<std::_Maybe_unary_or_binary_function<void, CookieIface const*, cb::engine_errc>> = {<std::binary_function<CookieIface const*, cb::engine_errc, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, 
            _M_manager = 0x0}, _M_invoker = 0x0}
        globalBucketLoggerName = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        aliveVBStates = {bits = {<std::_Base_bitset<1>> = {_M_w = 0}, <No data fields>}}
        cb::userdataEndTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_alloc_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_exception_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        flatbuffers::flatbuffer_version_string = 0xbbebf8 "FlatBuffers 1.10.0"
#28 0x000000000084da06 in MagmaKVStore::compactDB(std::unique_lock<std::mutex>&, std::shared_ptr<CompactionContext>) ()
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kvstore/magma-kvstore/magma-kvstore.cc:2032
        cb::userdataStartTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        NoopSeqnoAckCb = {<std::_Maybe_unary_or_binary_function<void, Vbid, long>> = {<std::binary_function<Vbid, long, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        LocalDocKey::droppedCollections = {static npos = <optimized out>, _M_len = 0, _M_str = 0x0}
        ImmediateCkptDisposer = {<std::_Maybe_unary_or_binary_function<void, boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&>> = {<std::unary_function<boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&, void>> = {<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 = 0x0, 
                _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        NoopSyncWriteCompleteCb = {<std::_Maybe_unary_or_binary_function<void, CookieIface const*, cb::engine_errc>> = {<std::binary_function<CookieIface const*, cb::engine_errc, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, 
            _M_manager = 0x0}, _M_invoker = 0x0}
        globalBucketLoggerName = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        aliveVBStates = {bits = {<std::_Base_bitset<1>> = {_M_w = 0}, <No data fields>}}
        cb::userdataEndTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_alloc_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_exception_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        flatbuffers::flatbuffer_version_string = 0xbbebf8 "FlatBuffers 1.10.0"
#29 0x00000000007e9ada in EPBucket::compactInternal(LockedVBucketPtr&, CompactionConfig&) () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/vbucket.h:2599
        aliveVBStates = {bits = {<std::_Base_bitset<1>> = {_M_w = 0}, <No data fields>}}
        NoopSeqnoAckCb = {<std::_Maybe_unary_or_binary_function<void, Vbid, long>> = {<std::binary_function<Vbid, long, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
        cb::userdataStartTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        globalBucketLoggerName = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        ImmediateCkptDisposer = {<std::_Maybe_unary_or_binary_function<void, boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&>> = {<std::unary_function<boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&, void>> = {<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 = 0x0, 
                _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        cb::userdataEndTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        NoopSyncWriteCompleteCb = {<std::_Maybe_unary_or_binary_function<void, CookieIface const*, cb::engine_errc>> = {<std::binary_function<CookieIface const*, cb::engine_errc, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, 
            _M_manager = 0x0}, _M_invoker = 0x0}
        flatbuffers::flatbuffer_version_string = 0xbbebf8 "FlatBuffers 1.10.0"
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_alloc_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_exception_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
#30 0x00000000007eb0f1 in EPBucket::doCompact(Vbid, CompactionConfig&, std::vector<CookieIface const*, std::allocator<CookieIface const*> >&) ()
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/ep_bucket.cc:1359
        aliveVBStates = {bits = {<std::_Base_bitset<1>> = {_M_w = 0}, <No data fields>}}
        NoopSeqnoAckCb = {<std::_Maybe_unary_or_binary_function<void, Vbid, long>> = {<std::binary_function<Vbid, long, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
        cb::userdataStartTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        globalBucketLoggerName = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        ImmediateCkptDisposer = {<std::_Maybe_unary_or_binary_function<void, boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&>> = {<std::unary_function<boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&, void>> = {<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 = 0x0, 
                _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        cb::userdataEndTag = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        NoopSyncWriteCompleteCb = {<std::_Maybe_unary_or_binary_function<void, CookieIface const*, cb::engine_errc>> = {<std::binary_function<CookieIface const*, cb::engine_errc, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, 
            _M_manager = 0x0}, _M_invoker = 0x0}
        flatbuffers::flatbuffer_version_string = 0xbbebf8 "FlatBuffers 1.10.0"
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_alloc_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_exception_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
#31 0x00000000007089c6 in CompactTask::run() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/tasks.cc:73
        aliveVBStates = {bits = {<std::_Base_bitset<1>> = {_M_w = 0}, <No data fields>}}
        globalBucketLoggerName = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x0}, _M_string_length = 0, {
            _M_local_buf = '\000' <repeats 15 times>, _M_allocated_capacity = 0}}
        ImmediateCkptDisposer = {<std::_Maybe_unary_or_binary_function<void, boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&>> = {<std::unary_function<boost::container::list<std::unique_ptr<Checkpoint, std::default_delete<Checkpoint> >, void>&&, void>> = {<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 = 0x0, 
                _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        NoopSyncWriteCompleteCb = {<std::_Maybe_unary_or_binary_function<void, CookieIface const*, cb::engine_errc>> = {<std::binary_function<CookieIface const*, cb::engine_errc, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, 
            _M_manager = 0x0}, _M_invoker = 0x0}
        std::__ioinit = {static _S_refcount = 0, static _S_synced_with_stdio = true}
        NoopSeqnoAckCb = {<std::_Maybe_unary_or_binary_function<void, Vbid, long>> = {<std::binary_function<Vbid, long, void>> = {<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 = 0x0, _M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer = NULL}, _M_pod_data = '\000' <repeats 15 times>}, _M_manager = 0x0}, _M_invoker = 0x0}
        flatbuffers::flatbuffer_version_string = 0xbbebf8 "FlatBuffers 1.10.0"
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_alloc_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
        boost::exception_detail::exception_ptr_static_exception_object<boost::exception_detail::bad_exception_>::e = {ptr_ = {px = 0x0, pn = {pi_ = 0x0}}}
#32 0x0000000000a1cf32 in GlobalTask::execute() () at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/globaltask.cc:68
        guard = {previous = 0x0}
#33 0x0000000000a1a055 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}::operator()() const (__closure=0x7fe3a3fed840)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:189
        scheduleOverhead = <optimized out>
        start = {__d = {__r = 3715314751495082}}
        runAgain = false
        proxy = @0x7fe3ec3d90b0: <error reading variable>
#34 0x0000000000b649a0 in operator() (this=0x7fe3a3fed840) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:416
        fn = @0x7fe3a3fed840: {<folly::detail::function::FunctionTraits<void()>> = {<No data fields>}, data_ = {big = 0x7fe3ec3d90b0, tiny = {
              __data = "\260\220=\354\343\177\000\000\000\000\000\000\000\000\000\000`\352a]\343\177\000\000\225\\\000\000\000\000\000\000x\002\000\000\000\000\000\000\020\331\376\243\343\177\000", __align = {<No data fields>}}}, 
          call_ = 0xa1a710 <folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Data&)>, 
          exec_ = 0xa18e50 <folly::detail::function::execSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}>(folly::detail::function::Op, folly::detail::function::Data*, folly::detail::function::Data)>}
#35 folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) (this=0x7fe4309e4400, thread=..., 
    task=<unknown type in /usr/lib/debug/opt/couchbase/bin/memcached.debug, CU 0x65a24fb, DIE 0x65e7bd8>)
    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 = 3715314751491858}}
        stats = {expired = false, waitTime = {__r = 20777133}, runTime = {__r = 0}, enqueueTime = {__d = {__r = 3715314730714725}}, requestId = 0}
#36 0x0000000000b4c75a in folly::CPUThreadPoolExecutor::threadRun (this=0x7fe4309e4400, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:265
        guard = {list_ = {forbid = true, prev = 0x0, curr = {name = {static npos = <optimized out>, b_ = 0xc1d00b "CPUThreadPoolExecutor", e_ = 0xc1d020 ""}}}}
#37 0x0000000000b67959 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.
#38 __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.
#39 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
No locals.
#40 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
No locals.
#41 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>
#42 0x0000000000a19ce4 in operator() (this=0x7fe424025b80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/executor/folly_executorpool.cc:47
        fn = @0x7fe424025b80: <error reading variable>
#43 operator() (__closure=0x7fe424025b80) 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 = 0x7fe3a3fed9a0 "WriterPool22"}, _M_string_length = 12, {_M_local_buf = "WriterPool22\000\000\000", _M_allocated_capacity = 8021036716417184343}}}, hasValue = true}}
        func = <error reading variable func (Cannot access memory at address 0x7fe424025b80)>
#44 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 = @0x7fe424025b80: <error reading variable>
#45 0x00007fe432434d40 in execute_native_thread_routine () at /tmp/deploy/objdir/../gcc-10.2.0/libstdc++-v3/src/c++11/thread.cc:80
No locals.
#46 0x00007fe434258ea5 in start_thread (arg=0x7fe3a3fff700) at pthread_create.c:307
        __res = <optimized out>
        pd = 0x7fe3a3fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140615685764864, 8001033269490590052, 0, 8392704, 3, 140615685764864, -8012424202364542620, -8016115875594919580}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {
              prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
#47 0x00007fe431b7d8dd in ioperm () at ../sysdeps/unix/syscall-template.S:81
No locals.
#48 0x0000000000000000 in ?? ()
No symbol table info available.
No core file now.