[Couchstore] Memcached crashed in cb::rbac::PrivilegeDatabase::lookup (this=this@entry=0x0, user=...)

(gdb) bt full

#0  0x0000000000577adf in hash (__seed=3339675911, __clength=<optimized out>, __ptr=<optimized out>)

    at /usr/local/include/c++/7.3.0/bits/functional_hash.h:192

No locals.

#1  operator() (this=0x8, __s=...) at /usr/local/include/c++/7.3.0/bits/basic_string.h:6591

No locals.

#2  _M_hash_code (this=0x8, __k=...) at /usr/local/include/c++/7.3.0/bits/hashtable_policy.h:1368

No locals.

#3  find (__k=..., this=0x8) at /usr/local/include/c++/7.3.0/bits/hashtable.h:1436

        __code = <optimized out>

        __n = <optimized out>

#4  find (__x=..., this=0x8) at /usr/local/include/c++/7.3.0/bits/unordered_map.h:927

No locals.

#5  cb::rbac::PrivilegeDatabase::lookup (this=this@entry=0x0, user=...)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/rbac/privilege_database.cc:419

        iter = <optimized out>

#6  0x0000000000578635 in cb::rbac::PrivilegeDatabase::createContext (this=0x0, user=..., domain=<optimized out>, bucket=...)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/rbac/privilege_database.cc:383

        ue = <optimized out>

        iter = <optimized out>

#7  0x000000000057b671 in cb::rbac::createContext (user=..., bucket=...)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/rbac/privilege_database.cc:516

        ctx = <optimized out>

#8  0x0000000000442a27 in prometheus_auth_callback (user=..., password=...)

    at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/memcached.cc:246

No locals.

#9  0x000000000054479d in operator() (__args#1=..., __args#0=..., this=0x7f19da2480e8)

    at /usr/local/include/c++/7.3.0/bits/std_function.h:706

No locals.

#10 prometheus::BasicAuthHandler::AuthorizeInner (this=this@entry=0x7f19da2480e0, conn=conn@entry=0x1a19210)

    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/pull/src/basic_auth.cc:64

        authHeader = <optimized out>

        authHeaderStr = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d95d0d80 <Address 0x7f19d95d0d80 out of bounds>}, _M_string_length = 366, {

            _M_local_buf = "n\001\000\000\000\000\000\000\204&T\000\000\000\000", _M_allocated_capacity = 366}}

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

        prefix = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d5cdaa40 "Basic "}, _M_string_length = 6, {_M_local_buf = "Basic \000\000=zs\334\031\177\000",

            _M_allocated_capacity = 35611343020354}}

        b64Auth = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d95d0f00 <Address 0x7f19d95d0f00 out of bounds>}, _M_string_length = 360, {

            _M_local_buf = "h\001", '\000' <repeats 13 times>, _M_allocated_capacity = 360}}

        decoded = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d956fdc0 <Address 0x7f19d956fdc0 out of bounds>}, _M_string_length = 268, {

            _M_local_buf = "\016\001\000\000\000\000\000\000\002\000\000\000\000\000\000", _M_allocated_capacity = 270}}

        splitPos = 11

        username = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d5cdaac0 "@prometheus"}, _M_string_length = 11, {_M_local_buf = "@prometheus\000\031\177\000",

            _M_allocated_capacity = 7526752397938552896}}

        password = {static npos = 18446744073709551615,

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

            _M_p = 0x7f19d956f640 <Address 0x7f19d956f640 out of bounds>}, _M_string_length = 256, {

            _M_local_buf = "\000\001\000\000\000\000\000\000\016_W\000\000\000\000", _M_allocated_capacity = 256}}

#11 0x0000000000544c01 in prometheus::BasicAuthHandler::authorize (this=0x7f19da2480e0, server=<optimized out>, conn=0x1a19210)

    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/pull/src/basic_auth.cc:16

No locals.

#12 0x0000000000531f19 in CivetServer::authHandler (conn=<optimized out>, cbdata=0x7f19da2480e0)

    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/CivetServer.cpp:179

        request_info = <optimized out>

        me = 0x7f19da247fa0

        handler = 0x7f19da2480e0

#13 0x000000000053c762 in handle_request (conn=conn@entry=0x1a19210)

    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:14203

        ri = 0x1a19218

        path = '\000' <repeats 4095 times>

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

        uri_len = <optimized out>

        is_found = 0

        is_script_resource = 1

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

        is_put_or_delete_request = 0

        is_callback_resource = 1

        i = <optimized out>

        file = {stat = {size = 0, last_modified = 0, is_directory = 0, is_gzipped = 0, location = 0}, access = {fp = 0x0}}

        callback_handler = 0x531c50 <CivetServer::requestHandler(mg_connection*, void*)>

        handler_info = 0x1a1af90

        subprotocols = 0x0

        ws_connect_handler = 0x0

        ws_ready_handler = 0x0

        ws_data_handler = 0x0

        ws_close_handler = 0x0

        callback_data = 0x7f19da230000

        auth_handler = 0x531e60 <CivetServer::authHandler(mg_connection*, void*)>

        auth_callback_data = 0x7f19da2480e0

        handler_type = 0

        curtime = 1604249442

        date = '\000' <repeats 63 times>

        __func__ = "handle_request"

#14 0x000000000053d7b4 in process_new_connection (conn=0x1a19210)

    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:18048

        ebuf = '\000' <repeats 99 times>

        ri = 0x1a19218

        discard_len = <optimized out>

        reqerr = 0

#15 worker_thread_run (conn=0x1a19210)

    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:18430

        ctx = 0x1a18710

        thread_index = <optimized out>

        tls = {is_master = 0, thread_idx = 2, user_ptr = 0x0}

#16 worker_thread (thread_func_param=0x1a19210)

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

    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:18486

        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0,

          sa_restorer = 0x0}

#17 0x00007f19dac77e65 in start_thread () from /lib64/libpthread.so.0

No symbol table info available.

#18 0x00007f19da9a088d in clone () from /lib64/libc.so.6

No symbol table info available.

(gdb)

./testrunner -i /tmp/testexec.4987.ini bucket_storage=couchstore,rerun=false,GROUP=P0;long_graceful,randomize_value=true,doc_size=256,bucket_eviction_policy=fullEviction,replicas=1,nodes_init=4,upgrade_version=7.0.0-3594 -t magma.magma_crash_recovery.MagmaCrashTests.test_crash_during_ops,num_items=1000000,doc_size=256,sdk_timeout=60,graceful=True,doc_ops=create:expiry,replicas=1,GROUP=P0;long_graceful,multiplier=100