[Collections] BackfillManager::wakeUpTask (this=0x0) at ...engines/ep/src/dcp/backfill-manager.cc:419

./testrunner -i /tmp/win10-bucket-ops.ini rerun=False,crash_warning=True,quota_percent=95 -t bucket_collections.collections_rebalance.CollectionsRebalance.test_data_load_collections_with_rebalance_out,nodes_init=5,nodes_out=2,update_replica=True,updated_num_replicas=3,bucket_spec=multi_bucket.buckets_all_membase_for_rebalance_tests_more_collections,data_load_stage=during,data_load_spec=volume_test_load_with_CRUD_on_collections,skip_validations=False,override_spec_params=replicas,replicas=0,GROUP=replica_update_with_collection_crud

[user:info,2020-09-07T14:24:05.844-07:00,ns_1@172.23.121.10:<0.17939.1>:ns_log:crash_consumption_loop:69]Service 'memcached' exited with status 139. Restarting. Messages:

2020-09-07T14:24:05.666235-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0xba2af]

2020-09-07T14:24:05.666254-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0xe55e8]

2020-09-07T14:24:05.666273-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0xcac0b]

2020-09-07T14:24:05.666294-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0x1b0751]

2020-09-07T14:24:05.666314-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0x192d51]

2020-09-07T14:24:05.666334-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0x177fe3]

2020-09-07T14:24:05.666358-07:00 CRITICAL     /opt/couchbase/bin/../lib/libep.so() [0x7f9fa50b5000+0x7fb3f]

2020-09-07T14:24:05.666372-07:00 CRITICAL     /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0() [0x7f9fa3b90000+0x10777]

2020-09-07T14:24:05.666386-07:00 CRITICAL     /lib64/libpthread.so.0() [0x7f9fa11d6000+0x7ea5]

2020-09-07T14:24:05.666441-07:00 CRITICAL     /lib64/libc.so.6(clone+0x6d) [0x7f9fa0e08000+0xfe8dd]

(gdb) bt full

#0  0x00007f9fa11dfd00 in pthread_mutex_lock () from /lib64/libpthread.so.0

No symbol table info available.

#1  0x00007f9fa516f2af in __gthread_mutex_lock (__mutex=0x58) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:748

No locals.

#2  lock (this=0x58) at /usr/local/include/c++/7.3.0/bits/std_mutex.h:103

No locals.

#3  lock_guard (__m=..., this=<synthetic pointer>) at /usr/local/include/c++/7.3.0/bits/std_mutex.h:162

No locals.

#4  BackfillManager::wakeUpTask (this=0x0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/backfill-manager.cc:419

        lh = {_M_device = @0x58}

#5  0x00007f9fa519a5e8 in DcpProducer::notifyBackfillManager (this=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/producer.cc:1399

No locals.

#6  0x00007f9fa517fc0b in DcpConnMap::notifyBackfillManagerTasks (this=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/dcp/dcpconnmap.cc:465

        producer = <optimized out>

        handle = {<folly::LockedPtrBase<folly::Synchronized<ConnStore::CookieToConnMapHandle, folly::SharedMutexImpl<false, void, std::atomic, false, false> >, folly::SharedMutexImpl<false, void, std::atomic, false, false>, folly::LockPolicyExclusive>> = {parent_ = 0x7f9f96462000}, static AllowsConcurrentAccess = false}

#7  0x00007f9fa5265751 in PagingVisitor::complete (this=0x7f9f615345c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/paging_visitor.cc:328

        elapsed_time = <optimized out>

        inverse = false

#8  0x00007f9fa5247d51 in VBCBAdaptor::run (this=0x7f9f95abb7f0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kv_bucket.cc:2382

        id = 1024

#9  0x00007f9fa522cfe3 in GlobalTask::execute (this=0x7f9f95abb7f0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/globaltask.cc:73

        guard = {previous = 0x0}

#10 0x00007f9fa5134b3f in CB3ExecutorThread::run (this=0x7f9f9f9f36c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/cb3_executorthread.cc:174

        curTaskDescr = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, 

            _M_p = 0x7f9f968f7260 <Address 0x7f9f968f7260 out of bounds>}, _M_string_length = 30, {_M_local_buf = "\036\000\000\000\000\000\000\000pressor", _M_allocated_capacity = 30}}

        woketime = <optimized out>

        scheduleOverhead = <optimized out>

        again = <optimized out>

        runtime = <optimized out>

        q = <optimized out>

        tick = 101 'e'

        guard = {engine = 0x0}

#11 0x00007f9fa3ba0777 in run (this=0x7f9f96ff9dd0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58

No locals.

#12 platform_thread_wrap (arg=0x7f9f96ff9dd0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71

        context = {_M_t = {

            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f9f96ff9dd0}, <No data fields>}, <No data fields>}}}

#13 0x00007f9fa11ddea5 in start_thread () from /lib64/libpthread.so.0

No symbol table info available.

#14 0x00007f9fa0f068dd in clone () from /lib64/libc.so.6

No symbol table info available.

(gdb)