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402\n\nTotal Test time (real) \u003d 304.45 sec\n\nThe following tests FAIL\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37318/ )\n\nTimeout of a CTest test 402/402 Test #268: ep_testsuite_dcp.value_eviction.magma .........................................................................................} ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37318/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12277/ : FAILURE\n\nThreadSanitizer issue: heap-use-after-free (/opt/gcc-10.2.0/lib64/libtsan.so.0+0x3bf9a) in pthread_mutex_unlock  ( http://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12277/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_tidy-master/10233/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_analyzer-master/31835/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_format_9/8831/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.ASan-UBSan/job/master/19840/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux-CE/job/master/11802/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.macos/job/master/10884/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux/job/master/11952/ : SUCCESS","accounts_in_message":[],"_revision_number":1},{"id":"41a2cb78cb8205fbe6635b0cefa0ad05876f62c0","tag":"autogenerated:gerrit:newPatchSet","author":{"_account_id":1004368,"name":"Richard de 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PersistentAndEphemeral/StreamTest.CursorDroppingBasicNotAllowedStates/ephemeral\nunknown file: error: C++ exception with description \"cb::io::rmrf: remove of file \\\\?\\C:\\Jenkins\\workspace\\kv_engine-windows-master\\build\\kv_engine\\ep_engine_ep_unit_tests.db\\test.018402\\magma.1\\wal\\wal.1 under ep_engine_ep_unit_tests.db/test.018402 failed: The data is invalid.\" thrown in TearDown().\n[  FAILED  ] PersistentAndEphemeral/StreamTest.CursorDroppingBasicNotAllowedStates/ephemeral, where GetParam() \u003d \"ephemeral\" (19 ms)\nPersistentAndEphemeral/StreamTest.CursorDroppingBasicNotAllowedStates/ephemeral\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37319/ )\n\nFailure of an engine_testapp test:\n\n\u003cpre\u003e\nRunning [0054/0096]: test change dcp buffer log size...(33 ms) OK\n\n\n99% tests passed, 2 tests failed out of 402\n\nTotal Test time (real) \u003d 307.39 sec\n\nThe following tests FAIL\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37319/ )\n\nTimeout of a CTest test 402/402 Test #265: ep_testsuite_dcp.full_eviction.comp_active ....................................................................................} ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37319/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.macos/job/master/10885/ : FAILURE\n\nFailure of an engine_testapp test:\n\n\u003cpre\u003e\nRunning [0076/0157]: disk\u003eRAM delete paged-out...../kv_engine/engines/ep/tests/ep_testsuite.cc:4351 Test failed: `\" (Expected `0\", got `1\" - Unexpected bg_fetched after del/get)\n[2021-06-24T15:50:57.761Z] (113 ms) FAIL\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine.macos/job/master/10885/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12278/ : FAILURE\n\nThreadSanitizer issue: lock-order-inversion (potential deadlock) (/opt/gcc-10.2.0/lib64/libtsan.so.0+0x50dfa) in __interceptor_pthread_mutex_lock  ( http://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12278/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_tidy-master/10235/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_analyzer-master/31836/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_format_9/8834/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux-CE/job/master/11803/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux/job/master/11953/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.ASan-UBSan/job/master/19841/ : SUCCESS","accounts_in_message":[],"_revision_number":2},{"id":"7afa309722e71e1e241a392e379532c30b105a63","tag":"autogenerated:jenkins-gerrit-trigger","author":{"_account_id":1000011,"name":"Build 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(Expected `0\", got `1\" - Unexpected bg_fetched after del/get)\n[2021-06-24T15:50:57.761Z] (113 ms) FAIL\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine.macos/job/master/10885/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12278/ : FAILURE\n\nThreadSanitizer issue: lock-order-inversion (potential deadlock) (/opt/gcc-10.2.0/lib64/libtsan.so.0+0x50dfa) in __interceptor_pthread_mutex_lock  ( http://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12278/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37324/ : FAILURE\n\nFailure of an engine_testapp test:\n\n\u003cpre\u003e\nRunning [0055/0157]: stats curr_items DELETE...(135 ms) OK\n\n\n99% tests passed, 1 tests failed out of 402\n\nTotal Test time (real) \u003d 640.07 sec\n\nThe following tests FAIL\n\u003c/pre\u003e\n ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37324/ )\n\nTimeout of a CTest test 402/402 Test #253: ep_testsuite.full_eviction.magma ..............................................................................................} ( http://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37324/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_tidy-master/10235/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_analyzer-master/31836/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_format_9/8834/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux-CE/job/master/11803/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux/job/master/11953/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.ASan-UBSan/job/master/19841/ : SUCCESS","accounts_in_message":[],"_revision_number":2},{"id":"379ba48a9824cf6650d09120bc1e05e4b0df0fc7","tag":"autogenerated:gerrit:newPatchSet","author":{"_account_id":1004368,"name":"Richard de 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http://cv.jenkins.couchbase.com/job/kv_engine.threadsanitizer/job/master/12325/ )\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_tidy-master/10276/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-windows-master/37373/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_analyzer-master/31876/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine-clang_format_9/8878/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.macos/job/master/10927/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux-CE/job/master/11846/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.linux/job/master/11996/ : SUCCESS\n\nhttp://cv.jenkins.couchbase.com/job/kv_engine.ASan-UBSan/job/master/19889/ : SUCCESS","accounts_in_message":[],"_revision_number":3},{"id":"635b54b3a7bc21011beaa4de29f0146d92d31d6e","tag":"autogenerated:gerrit:newPatchSet","author":{"_account_id":1004368,"name":"Richard de 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If you know why this problem occurred, please add a suitable Cause for it. 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by destroy_mock_cookie(). So it shouldn\u0027t change the behaviour in that sense. Also when I\u0027ve messed up the refcounting before ASAN has warned that I\u0027m leaking memory.","accounts_in_message":[],"_revision_number":8},{"id":"e2bd0dc2a8eb8135e65b974561cc1f4407344109","author":{"_account_id":1000966,"name":"Dave Rigby","email":"daver@couchbase.com","username":"drigby","avatars":[{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/514e75a8d75cc1fcdb22433d445ae8f1.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"date":"2021-07-01 14:15:03.000000000","message":"Patch Set 8: Code-Review+2\n\n\u003e Patch Set 8:\n\u003e \n\u003e \u003e Patch Set 6: Code-Review+1\n\u003e \u003e \n\u003e \u003e (1 comment)\n\u003e \u003e \n\u003e \u003e I assume we don\u0027t now leak the Cookie object (I noticed the removal of one of the decrements...)\n\u003e \n\u003e I moved the decrement in the disconnect() method to destroy_mock_cookie() as disconnect is only ever called by destroy_mock_cookie(). So it shouldn\u0027t change the behaviour in that sense. Also when I\u0027ve messed up the refcounting before ASAN has warned that I\u0027m leaking memory.\n\nThanks for confirming.","accounts_in_message":[],"_revision_number":8},{"id":"f34491af61073a18bce1a7e870972e34c4557d81","tag":"autogenerated:gerrit:merged","author":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"date":"2021-07-01 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MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"88a26d6df34fb9478e116eaff70ded22962e2a7e","is_merged_in_target_branch":true,"change_id":"Ia67d789dc38e0c649d2e7cf8cea945f8f67b711e","change_number":155961,"patch_set_number":18,"change_status":"MERGED"}],"branch":"refs/heads/master"},"0c06b1b7dbe78e0368ff1b6a143b56c7a8bff499":{"kind":"REWORK","_number":5,"created":"2021-06-30 10:23:13.000000000","uploader":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/20/156420/5","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/20/156420/5","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/5 \u0026\u0026 git checkout -b change-156420 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/5 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/5 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/5 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/20/156420/5","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/5 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"9bed8e45563f582920915ccce1477f4b51a2707d","subject":"MB-42657: Write crash log messages to separate file"}],"author":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-24 15:16:37.000000000","tz":60},"committer":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-30 10:22:25.000000000","tz":60},"subject":"Fix TSAN race when destroying a MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"9bed8e45563f582920915ccce1477f4b51a2707d","is_merged_in_target_branch":true,"change_id":"I733f300befd5e91dcec5f2ca899540016bd72fb7","change_number":156115,"patch_set_number":16,"change_status":"MERGED"}],"branch":"refs/heads/master"},"e6d504d1e0a812f4d619c30accbeda11b00e1980":{"kind":"REWORK","_number":6,"created":"2021-06-30 12:46:33.000000000","uploader":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/20/156420/6","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/20/156420/6","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/6 \u0026\u0026 git checkout -b change-156420 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/6 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/6 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/6 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/20/156420/6","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/6 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"ceb94227dac8f288728f9955e96afe74e1fe4b41","subject":"MB-42657: Don\u0027t call shutdown_server from signal handler"}],"author":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-24 15:16:37.000000000","tz":60},"committer":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-30 12:46:25.000000000","tz":60},"subject":"Fix TSAN race when destroying a MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nFix race of more than one thread trying to free a MockCookie. This is due to\nMockServerCookieApi::release() and destroy_mock_cookie() racing with\neach other. For instance, T1 could dec the ref count the pause. T2 gets\nrun which decs the ref count, reads the ref count as 0 and frees the\nMockCookie. Then T1 gets run again, it tries to call getRefcount() which\ncauses it to deref an invalid pointer as the MockCookie has been freed.\nTo fix this make the read+write of the ref count atomic.\n\nRNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid\u003d107468)\n  Write of size 8 at 0x7b4800030a80 by thread T2 (mutexes: write M1121813589057925128):\n    #0 cb::tracing::Traceable::~Traceable() ../kv_engine/include/memcached/tracer.h:132 (ep_testsuite_dcp+0x5aab16)\n    #1 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:22 (ep_testsuite_dcp+0x5a9ddd)\n    #2 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:18 (ep_testsuite_dcp+0x5a9e45)\n    #3 MockServerCookieApi::release(CookieIface const\u0026) ../kv_engine/programs/engine_testapp/mock_server.cc:235 (ep_testsuite_dcp+0x5b86c4)\n    #4 EventuallyPersistentEngine::releaseCookie(CookieIface const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/ep_engine.cc:1793 (ep_testsuite_dcp+0x765c89)\n    #5 ConnHandler::releaseReference() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/connhandler.cc:343 (ep_testsuite_dcp+0x86cb6d)\n    #6 DcpConnMap::manageConnections() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/dcp/dcpconnmap.cc:392 (ep_testsuite_dcp+0x7f415e)\n    ...\n\n  Previous read of size 8 at 0x7b4800030a80 by main thread:\n    #0 destroy_mock_cookie(CookieIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:48 (ep_testsuite_dcp+0x5a9fa6)\n    #1 MockTestHarness::destroy_cookie(CookieIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:159 (ep_testsuite_dcp+0x490ae5)\n    #2 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2306 (ep_testsuite_dcp+0x4d3e3f)\n    ...\n\n  Location is heap block of size 336 at 0x7b4800030a80 allocated by main thread:\n    #0 operator new(unsigned long) \u003cnull\u003e (libtsan.so.0+0x87c5c)\n    #1 create_mock_cookie(EngineIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:32 (ep_testsuite_dcp+0x5a9f0a)\n    #2 MockTestHarness::create_cookie(EngineIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:155 (ep_testsuite_dcp+0x490aa5)\n    #3 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2287 (ep_testsuite_dcp+0x4d3d31)\n    #4 execute_test(test, char const*, char const*)::$_1::operator()() const /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48f988)\n    #5 test_result std::__invoke_impl\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(std::__invoke_other, execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:60 (ep_testsuite_dcp+0x48f90d)\n    #6 std::enable_if\u003cis_invocable_r_v\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e, test_result\u003e::type std::__invoke_r\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:113 (ep_testsuite_dcp+0x48f89d)\n    #7 std::_Function_handler\u003ctest_result (), execute_test(test, char const*, char const*)::$_1\u003e::_M_invoke(std::_Any_data const\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:291 (ep_testsuite_dcp+0x48f78d)\n    #8 std::function\u003ctest_result ()\u003e::operator()() const /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:622 (ep_testsuite_dcp+0x4900d8)\n    #9 try_run_test(std::function\u003ctest_result ()\u003e) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:288 (ep_testsuite_dcp+0x48d368)\n    #10 execute_test(test, char const*, char const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48ea37)\n    #11 main /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:698 (ep_testsuite_dcp+0x48dbfb)\n\n  Mutex M1121813589057925128 is already destroyed.\n\nSUMMARY: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) ../kv_engine/include/memcached/tracer.h:132 in cb::tracing::Traceable::~Traceable()\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"ceb94227dac8f288728f9955e96afe74e1fe4b41","is_merged_in_target_branch":true,"change_id":"I7cbbe0028643d6fdf747bdd710572d9279403bc3","change_number":156471,"patch_set_number":2,"change_status":"MERGED"}],"branch":"refs/heads/master"},"ccecbdd82068cb1a1be83d997a97175f47451d55":{"kind":"NO_CODE_CHANGE","_number":7,"created":"2021-06-30 14:17:14.000000000","uploader":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/20/156420/7","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/20/156420/7","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/7 \u0026\u0026 git checkout -b change-156420 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/7 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/7 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/7 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/20/156420/7","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/7 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"ceb94227dac8f288728f9955e96afe74e1fe4b41","subject":"MB-42657: Don\u0027t call shutdown_server from signal handler"}],"author":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-24 15:16:37.000000000","tz":60},"committer":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-30 14:17:14.000000000","tz":0},"subject":"Fix TSAN race when destroying a MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nFix race of more than one thread trying to free a MockCookie. This is due to\nMockServerCookieApi::release() and destroy_mock_cookie() racing with\neach other. For instance, T1 could dec the ref count then pause. T2 gets\nrun which decs the ref count, reads the ref count as 0 and frees the\nMockCookie. Then T1 gets run again, it tries to call getRefcount() which\ncauses it to deref an invalid pointer as the MockCookie has been freed.\nTo fix this make the read+write of the ref count atomic.\n\nRNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid\u003d107468)\n  Write of size 8 at 0x7b4800030a80 by thread T2 (mutexes: write M1121813589057925128):\n    #0 cb::tracing::Traceable::~Traceable() ../kv_engine/include/memcached/tracer.h:132 (ep_testsuite_dcp+0x5aab16)\n    #1 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:22 (ep_testsuite_dcp+0x5a9ddd)\n    #2 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:18 (ep_testsuite_dcp+0x5a9e45)\n    #3 MockServerCookieApi::release(CookieIface const\u0026) ../kv_engine/programs/engine_testapp/mock_server.cc:235 (ep_testsuite_dcp+0x5b86c4)\n    #4 EventuallyPersistentEngine::releaseCookie(CookieIface const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/ep_engine.cc:1793 (ep_testsuite_dcp+0x765c89)\n    #5 ConnHandler::releaseReference() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/connhandler.cc:343 (ep_testsuite_dcp+0x86cb6d)\n    #6 DcpConnMap::manageConnections() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/dcp/dcpconnmap.cc:392 (ep_testsuite_dcp+0x7f415e)\n    ...\n\n  Previous read of size 8 at 0x7b4800030a80 by main thread:\n    #0 destroy_mock_cookie(CookieIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:48 (ep_testsuite_dcp+0x5a9fa6)\n    #1 MockTestHarness::destroy_cookie(CookieIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:159 (ep_testsuite_dcp+0x490ae5)\n    #2 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2306 (ep_testsuite_dcp+0x4d3e3f)\n    ...\n\n  Location is heap block of size 336 at 0x7b4800030a80 allocated by main thread:\n    #0 operator new(unsigned long) \u003cnull\u003e (libtsan.so.0+0x87c5c)\n    #1 create_mock_cookie(EngineIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:32 (ep_testsuite_dcp+0x5a9f0a)\n    #2 MockTestHarness::create_cookie(EngineIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:155 (ep_testsuite_dcp+0x490aa5)\n    #3 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2287 (ep_testsuite_dcp+0x4d3d31)\n    #4 execute_test(test, char const*, char const*)::$_1::operator()() const /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48f988)\n    #5 test_result std::__invoke_impl\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(std::__invoke_other, execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:60 (ep_testsuite_dcp+0x48f90d)\n    #6 std::enable_if\u003cis_invocable_r_v\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e, test_result\u003e::type std::__invoke_r\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:113 (ep_testsuite_dcp+0x48f89d)\n    #7 std::_Function_handler\u003ctest_result (), execute_test(test, char const*, char const*)::$_1\u003e::_M_invoke(std::_Any_data const\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:291 (ep_testsuite_dcp+0x48f78d)\n    #8 std::function\u003ctest_result ()\u003e::operator()() const /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:622 (ep_testsuite_dcp+0x4900d8)\n    #9 try_run_test(std::function\u003ctest_result ()\u003e) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:288 (ep_testsuite_dcp+0x48d368)\n    #10 execute_test(test, char const*, char const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48ea37)\n    #11 main /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:698 (ep_testsuite_dcp+0x48dbfb)\n\n  Mutex M1121813589057925128 is already destroyed.\n\nSUMMARY: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) ../kv_engine/include/memcached/tracer.h:132 in cb::tracing::Traceable::~Traceable()\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"ceb94227dac8f288728f9955e96afe74e1fe4b41","is_merged_in_target_branch":true,"change_id":"I7cbbe0028643d6fdf747bdd710572d9279403bc3","change_number":156471,"patch_set_number":2,"change_status":"MERGED"}],"branch":"refs/heads/master","description":"Edit commit message"},"a808d7d68da2effda646b44a63ba50f186e31a37":{"kind":"NO_CODE_CHANGE","_number":8,"created":"2021-06-30 14:18:18.000000000","uploader":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/20/156420/8","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/20/156420/8","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/8 \u0026\u0026 git checkout -b change-156420 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/8 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/8 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/8 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/20/156420/8","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/8 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"ceb94227dac8f288728f9955e96afe74e1fe4b41","subject":"MB-42657: Don\u0027t call shutdown_server from signal handler"}],"author":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-24 15:16:37.000000000","tz":60},"committer":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-30 14:18:18.000000000","tz":0},"subject":"Fix TSAN race when destroying a MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nFix race of more than one thread trying to free a MockCookie. This is\ndue to MockServerCookieApi::release() and destroy_mock_cookie()\nracing with each other. For instance, T1 could dec the ref count\nthen pause. T2 gets run which decs the ref count, reads the ref count\nas 0 and frees the MockCookie. Then T1 gets run again, it tries to call\ngetRefcount() which causes it to deref an invalid pointer as the\nMockCookie has been freed. To fix this make the read+write of the ref\ncount atomic.\n\nRNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid\u003d107468)\n  Write of size 8 at 0x7b4800030a80 by thread T2 (mutexes: write M1121813589057925128):\n    #0 cb::tracing::Traceable::~Traceable() ../kv_engine/include/memcached/tracer.h:132 (ep_testsuite_dcp+0x5aab16)\n    #1 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:22 (ep_testsuite_dcp+0x5a9ddd)\n    #2 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:18 (ep_testsuite_dcp+0x5a9e45)\n    #3 MockServerCookieApi::release(CookieIface const\u0026) ../kv_engine/programs/engine_testapp/mock_server.cc:235 (ep_testsuite_dcp+0x5b86c4)\n    #4 EventuallyPersistentEngine::releaseCookie(CookieIface const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/ep_engine.cc:1793 (ep_testsuite_dcp+0x765c89)\n    #5 ConnHandler::releaseReference() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/connhandler.cc:343 (ep_testsuite_dcp+0x86cb6d)\n    #6 DcpConnMap::manageConnections() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/dcp/dcpconnmap.cc:392 (ep_testsuite_dcp+0x7f415e)\n    ...\n\n  Previous read of size 8 at 0x7b4800030a80 by main thread:\n    #0 destroy_mock_cookie(CookieIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:48 (ep_testsuite_dcp+0x5a9fa6)\n    #1 MockTestHarness::destroy_cookie(CookieIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:159 (ep_testsuite_dcp+0x490ae5)\n    #2 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2306 (ep_testsuite_dcp+0x4d3e3f)\n    ...\n\n  Location is heap block of size 336 at 0x7b4800030a80 allocated by main thread:\n    #0 operator new(unsigned long) \u003cnull\u003e (libtsan.so.0+0x87c5c)\n    #1 create_mock_cookie(EngineIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:32 (ep_testsuite_dcp+0x5a9f0a)\n    #2 MockTestHarness::create_cookie(EngineIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:155 (ep_testsuite_dcp+0x490aa5)\n    #3 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2287 (ep_testsuite_dcp+0x4d3d31)\n    #4 execute_test(test, char const*, char const*)::$_1::operator()() const /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48f988)\n    #5 test_result std::__invoke_impl\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(std::__invoke_other, execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:60 (ep_testsuite_dcp+0x48f90d)\n    #6 std::enable_if\u003cis_invocable_r_v\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e, test_result\u003e::type std::__invoke_r\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:113 (ep_testsuite_dcp+0x48f89d)\n    #7 std::_Function_handler\u003ctest_result (), execute_test(test, char const*, char const*)::$_1\u003e::_M_invoke(std::_Any_data const\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:291 (ep_testsuite_dcp+0x48f78d)\n    #8 std::function\u003ctest_result ()\u003e::operator()() const /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:622 (ep_testsuite_dcp+0x4900d8)\n    #9 try_run_test(std::function\u003ctest_result ()\u003e) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:288 (ep_testsuite_dcp+0x48d368)\n    #10 execute_test(test, char const*, char const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48ea37)\n    #11 main /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:698 (ep_testsuite_dcp+0x48dbfb)\n\n  Mutex M1121813589057925128 is already destroyed.\n\nSUMMARY: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) ../kv_engine/include/memcached/tracer.h:132 in cb::tracing::Traceable::~Traceable()\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"ceb94227dac8f288728f9955e96afe74e1fe4b41","is_merged_in_target_branch":true,"change_id":"I7cbbe0028643d6fdf747bdd710572d9279403bc3","change_number":156471,"patch_set_number":2,"change_status":"MERGED"}],"branch":"refs/heads/master","description":"Edit commit message"},"70120f910d1538a67430e23e5c36d9e8d52e76d7":{"kind":"REWORK","_number":9,"created":"2021-07-01 14:19:19.000000000","uploader":{"_account_id":1004368,"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","username":"rdemellow","avatars":[{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/35c97da872c07458f5e5bc4938b2489f.jpg?d\u003didenticon\u0026r\u003dpg\u0026s\u003d120","height":120}]},"ref":"refs/changes/20/156420/9","fetch":{"anonymous http":{"url":"https://review.couchbase.org/kv_engine","ref":"refs/changes/20/156420/9","commands":{"Branch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/9 \u0026\u0026 git checkout -b change-156420 FETCH_HEAD","Checkout":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/9 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/9 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/9 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.couchbase.org/kv_engine refs/changes/20/156420/9","Reset To":"git fetch https://review.couchbase.org/kv_engine refs/changes/20/156420/9 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"a9f1b7422c8bbc1a9050463656cc6f44b0ea0f02","subject":"MB-29928: Switch fragmentation scoring/weighting to use high-water mark"}],"author":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-06-24 15:16:37.000000000","tz":60},"committer":{"name":"Richard de Mellow","email":"richard.demellow@couchbase.com","date":"2021-07-01 14:19:19.000000000","tz":0},"subject":"Fix TSAN race when destroying a MockCookie","message":"Fix TSAN race when destroying a MockCookie\n\nFix race of more than one thread trying to free a MockCookie. This is\ndue to MockServerCookieApi::release() and destroy_mock_cookie()\nracing with each other. For instance, T1 could dec the ref count\nthen pause. T2 gets run which decs the ref count, reads the ref count\nas 0 and frees the MockCookie. Then T1 gets run again, it tries to call\ngetRefcount() which causes it to deref an invalid pointer as the\nMockCookie has been freed. To fix this make the read+write of the ref\ncount atomic.\n\nRNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid\u003d107468)\n  Write of size 8 at 0x7b4800030a80 by thread T2 (mutexes: write M1121813589057925128):\n    #0 cb::tracing::Traceable::~Traceable() ../kv_engine/include/memcached/tracer.h:132 (ep_testsuite_dcp+0x5aab16)\n    #1 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:22 (ep_testsuite_dcp+0x5a9ddd)\n    #2 MockCookie::~MockCookie() ../kv_engine/programs/engine_testapp/mock_cookie.cc:18 (ep_testsuite_dcp+0x5a9e45)\n    #3 MockServerCookieApi::release(CookieIface const\u0026) ../kv_engine/programs/engine_testapp/mock_server.cc:235 (ep_testsuite_dcp+0x5b86c4)\n    #4 EventuallyPersistentEngine::releaseCookie(CookieIface const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/ep_engine.cc:1793 (ep_testsuite_dcp+0x765c89)\n    #5 ConnHandler::releaseReference() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/connhandler.cc:343 (ep_testsuite_dcp+0x86cb6d)\n    #6 DcpConnMap::manageConnections() /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/engines/ep/src/dcp/dcpconnmap.cc:392 (ep_testsuite_dcp+0x7f415e)\n    ...\n\n  Previous read of size 8 at 0x7b4800030a80 by main thread:\n    #0 destroy_mock_cookie(CookieIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:48 (ep_testsuite_dcp+0x5a9fa6)\n    #1 MockTestHarness::destroy_cookie(CookieIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:159 (ep_testsuite_dcp+0x490ae5)\n    #2 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2306 (ep_testsuite_dcp+0x4d3e3f)\n    ...\n\n  Location is heap block of size 336 at 0x7b4800030a80 allocated by main thread:\n    #0 operator new(unsigned long) \u003cnull\u003e (libtsan.so.0+0x87c5c)\n    #1 create_mock_cookie(EngineIface*) ../kv_engine/programs/engine_testapp/mock_cookie.cc:32 (ep_testsuite_dcp+0x5a9f0a)\n    #2 MockTestHarness::create_cookie(EngineIface*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:155 (ep_testsuite_dcp+0x490aa5)\n    #3 test_dcp_producer_stream_req_backfill(EngineIface*) ../kv_engine/engines/ep/tests/ep_testsuite_dcp.cc:2287 (ep_testsuite_dcp+0x4d3d31)\n    #4 execute_test(test, char const*, char const*)::$_1::operator()() const /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48f988)\n    #5 test_result std::__invoke_impl\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(std::__invoke_other, execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:60 (ep_testsuite_dcp+0x48f90d)\n    #6 std::enable_if\u003cis_invocable_r_v\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e, test_result\u003e::type std::__invoke_r\u003ctest_result, execute_test(test, char const*, char const*)::$_1\u0026\u003e(execute_test(test, char const*, char const*)::$_1\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/invoke.h:113 (ep_testsuite_dcp+0x48f89d)\n    #7 std::_Function_handler\u003ctest_result (), execute_test(test, char const*, char const*)::$_1\u003e::_M_invoke(std::_Any_data const\u0026) /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:291 (ep_testsuite_dcp+0x48f78d)\n    #8 std::function\u003ctest_result ()\u003e::operator()() const /opt/gcc-10.2.0/lib/gcc/x86_64-pc-linux-gnu/10.2.0/../../../../include/c++/10.2.0/bits/std_function.h:622 (ep_testsuite_dcp+0x4900d8)\n    #9 try_run_test(std::function\u003ctest_result ()\u003e) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:288 (ep_testsuite_dcp+0x48d368)\n    #10 execute_test(test, char const*, char const*) /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:445 (ep_testsuite_dcp+0x48ea37)\n    #11 main /home/couchbase/jenkins/workspace/kv_engine.threadsanitizer_master/kv_engine/programs/engine_testapp/engine_testapp.cc:698 (ep_testsuite_dcp+0x48dbfb)\n\n  Mutex M1121813589057925128 is already destroyed.\n\nSUMMARY: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) ../kv_engine/include/memcached/tracer.h:132 in cb::tracing::Traceable::~Traceable()\n\nChange-Id: I5cc6959ee9644c8c780b239cd63a6071c10c6c45\nReviewed-on: http://review.couchbase.org/c/kv_engine/+/156420\nReviewed-by: Dave Rigby \u003cdaver@couchbase.com\u003e\nTested-by: Build Bot \u003cbuild@couchbase.com\u003e\n"},"parents_data":[{"branch_name":"refs/heads/master","commit_id":"a9f1b7422c8bbc1a9050463656cc6f44b0ea0f02","is_merged_in_target_branch":true,"change_id":"I1f8d9098edf38dbd780b746a85da6a1177850482","change_number":156643,"patch_set_number":3,"change_status":"MERGED"}],"branch":"refs/heads/master"}},"requirements":[],"submit_records":[{"status":"CLOSED","labels":[{"label":"Verified","status":"OK","applied_by":{"_account_id":1000011,"name":"Build 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