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  1. Core Server
  2. SERVER-60611

Segfault crash for specific aggregations in Mongo 5

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    Details

    • Operating System:
      ALL
    • Steps To Reproduce:
      Hide

      I tried to create a minimal reproduction case in that repo: https://github.com/davinov/mongo-5-query-segfault

      If you have 2 collections:

      • first collection `data_1` with two docs:

        [{"Identifier": "K4"}, {"Identifier": "K8"}]

      • second collection `data_2` with one doc:

      [{"Identifier": "K4"}]
      

      • and execute the following aggregation:

      db.data_1.aggregate([
          {
              "$lookup": {
                  "as": "_lookedUp",
                  "from": "data_2",
                  "pipeline": [
                      {
                          "$group": {
                              "_id": {
                                  "Identifier": "$Identifier"
                              }
                          }
                      },
                      {
                          "$facet": {
                              "data_2": []
                          }
                      }
                  ]
              }
          }
      ])

      In mongo 4, this works as expected, the result being:

      [{'_id': ObjectId(),
        'Identifier': 'K4',
        '_lookedUp': [{'data_2': [{'_id': {'Identifier': 'K4'}}]}]},
       {'_id': ObjectId(),
        'Identifier': 'K8',
        '_lookedUp': [{'data_2': [{'_id': {'Identifier': 'K4'}}]}]}]
      

      In mongo 5, the server crashes with the following logs:

       '{"t":{"$date":"2021-10-12T10:29:42.544+00:00"},"s":"F",  "c":"CONTROL",  "id":4757800, "ctx":"conn4","msg":"Writing fatal message","attr":{"message":"Invalid access at address: 0"}}',
       '{"t":{"$date":"2021-10-12T10:29:42.544+00:00"},"s":"F",  "c":"CONTROL",  "id":4757800, "ctx":"conn4","msg":"Writing fatal message","attr":{"message":"Got signal: 11 (Segmentation fault).\\n"}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31380,   "ctx":"conn4","msg":"BACKTRACE","attr":{"bt":{"backtrace":[{"a":"562AA7C7A135","b":"562AA3E81000","o":"3DF9135","s":"_ZN5mongo18stack_trace_detail12_GLOBAL__N_119printStackTraceImplERKNS1_7OptionsEPNS_14StackTraceSinkE.constprop.357","s+":"215"},{"a":"562AA7C7CBC9","b":"562AA3E81000","o":"3DFBBC9","s":"_ZN5mongo15printStackTraceEv","s+":"29"},{"a":"562AA7C7535C","b":"562AA3E81000","o":"3DF435C","s":"abruptQuitWithAddrSignal","s+":"EC"},{"a":"7F8EF1BF23C0","b":"7F8EF1BDD000","o":"153C0","s":"funlockfile","s+":"60"},{"a":"562AA68C7706","b":"562AA3E81000","o":"2A46706","s":"_ZN5mongo25DocumentSourceTeeConsumer9doDisposeEv","s+":"146"},{"a":"562AA68DDECD","b":"562AA3E81000","o":"2A5CECD","s":"_ZN5mongo8Pipeline7disposeEPNS_16OperationContextE","s+":"5D"},{"a":"562AA6848543","b":"562AA3E81000","o":"29C7543","s":"_ZN5mongo19DocumentSourceFacetD0Ev","s+":"83"},{"a":"562AA68B994F","b":"562AA3E81000","o":"2A3894F","s":"_ZN5mongo37DocumentSourceSequentialDocumentCache12doOptimizeAtESt14_List_iteratorIN5boost13intrusive_ptrINS_14DocumentSourceEEEEPNSt7__cxx114listIS5_SaIS5_EEE","s+":"33F"},{"a":"562AA68DF088","b":"562AA3E81000","o":"2A5E088","s":"_ZN5mongo8Pipeline17optimizeContainerEPNSt7__cxx114listIN5boost13intrusive_ptrINS_14DocumentSourceEEESaIS6_EEE","s+":"68"},{"a":"562AA68E0188","b":"562AA3E81000","o":"2A5F188","s":"_ZN5mongo8Pipeline16optimizePipelineEv","s+":"38"},{"a":"562AA687AC92","b":"562AA3E81000","o":"29F9C92","s":"_ZN5mongo20DocumentSourceLookUp13buildPipelineERKNS_8DocumentE","s+":"372"},{"a":"562AA687E157","b":"562AA3E81000","o":"29FD157","s":"_ZN5mongo20DocumentSourceLookUp9doGetNextEv","s+":"F7"},{"a":"562AA600C1C8","b":"562AA3E81000","o":"218B1C8","s":"_ZN5mongo14DocumentSource7getNextEv","s+":"48"},{"a":"562AA68DDF2C","b":"562AA3E81000","o":"2A5CF2C","s":"_ZN5mongo8Pipeline7getNextEv","s+":"3C"},{"a":"562AA63CD6C9","b":"562AA3E81000","o":"254C6C9","s":"_ZN5mongo20PlanExecutorPipeline8_getNextEv","s+":"29"},{"a":"562AA63CD76C","b":"562AA3E81000","o":"254C76C","s":"_ZN5mongo20PlanExecutorPipeline15getNextDocumentEPNS_8DocumentEPNS_8RecordIdE","s+":"4C"},{"a":"562AA63CD8EE","b":"562AA3E81000","o":"254C8EE","s":"_ZN5mongo20PlanExecutorPipeline7getNextEPNS_7BSONObjEPNS_8RecordIdE","s+":"EE"},{"a":"562AA5EB2F0F","b":"562AA3E81000","o":"2031F0F","s":"_ZN5mongo12runAggregateEPNS_16OperationContextERKNS_15NamespaceStringERKNS_23AggregateCommandRequestERKNS_18LiteParsedPipelineERKNS_7BSONObjERKSt6vectorINS_9PrivilegeESaISF_EEPNS_3rpc21ReplyBuilderInterfaceE","s+":"335F"},{"a":"562AA5EA8DB5","b":"562AA3E81000","o":"2027DB5","s":"_ZN5mongo12_GLOBAL__N_115PipelineCommand10Invocation3runEPNS_16OperationContextEPNS_3rpc21ReplyBuilderInterfaceE","s+":"75"},{"a":"562AA6AC2C5F","b":"562AA3E81000","o":"2C41C5F","s":"_ZN5mongo14CommandHelpers20runCommandInvocationEPNS_16OperationContextERKNS_12OpMsgRequestEPNS_17CommandInvocationEPNS_3rpc21ReplyBuilderInterfaceE","s+":"7F"},{"a":"562AA6AC7EFE","b":"562AA3E81000","o":"2C46EFE","s":"_ZN5mongo14CommandHelpers20runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEENS_9transport15ServiceExecutor14ThreadingModelE","s+":"1BE"},{"a":"562AA53BC257","b":"562AA3E81000","o":"153B257","s":"_ZN5mongo12_GLOBAL__N_120runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEE","s+":"97"},{"a":"562AA53CE676","b":"562AA3E81000","o":"154D676","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl11_runCommandEv","s+":"146"},{"a":"562AA53CEF06","b":"562AA3E81000","o":"154DF06","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern24_runCommandWithFailPointEv","s+":"86"},{"a":"562AA53CF46C","b":"562AA3E81000","o":"154E46C","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern8_runImplEv","s+":"3C"},{"a":"562AA53C08AC","b":"562AA3E81000","o":"153F8AC","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl3runEv","s+":"13C"},{"a":"562AA53C294E","b":"562AA3E81000","o":"154194E","s":"_ZN5mongo12_GLOBAL__N_119ExecCommandDatabase12_commandExecEv","s+":"1CE"},{"a":"562AA53CB320","b":"562AA3E81000","o":"154A320","s":"_ZZN5mongo12_GLOBAL__N_114executeCommandESt10shared_ptrINS0_13HandleRequest16ExecutionContextEEENUlvE0_clEv","s+":"450"},{"a":"562AA53CD510","b":"562AA3E81000","o":"154C510","s":"_ZZN5mongo15unique_functionIFvPNS_14future_details15SharedStateBaseEEE8makeImplIZNS1_10FutureImplINS1_8FakeVoidEE16makeContinuationIvZZNOS9_4thenIZNS_12_GLOBAL__N_114executeCommandESt10shared_ptrINSC_13HandleRequest16ExecutionContextEEEUlvE0_EEDaOT_ENKUlvE1_clEvEUlPNS1_15SharedStateImplIS8_EESN_E_EENS7_ISI_EEOT0_EUlS3_E_EEDaSJ_EN12SpecificImpl4callEOS3_","s+":"80"},{"a":"562AA53880E7","b":"562AA3E81000","o":"15070E7","s":"_ZN5mongo14future_details15SharedStateBase20transitionToFinishedEv","s+":"147"},{"a":"562AA53D18D2","b":"562AA3E81000","o":"15508D2","s":"_ZN5mongo14future_details10FutureImplINS0_8FakeVoidEE11generalImplIZNOS3_17propagateResultToEPNS0_15SharedStateImplIS2_EEEUlOS2_E_ZNOS3_17propagateResultToES7_EUlONS_6StatusEE0_ZNOS3_17propagateResultToES7_EUlvE1_EEDaOT_OT0_OT1_","s+":"152"},{"a":"562AA53C4F5C","b":"562AA3E81000","o":"1543F5C","s":"_ZZN5mongo15unique_functionIFvPNS_14future_details15SharedStateBaseEEE8makeImplIZNS1_10FutureImplINS1_8FakeVoidEE16makeContinuationIvZZNOS9_4thenIZNS_12_GLOBAL__N_114executeCommandESt10shared_ptrINSC_13HandleRequest16ExecutionContextEEEUlvE_EEDaOT_ENKUlvE1_clEvEUlPNS1_15SharedStateImplIS8_EESN_E_EENS7_ISI_EEOT0_EUlS3_E_EEDaSJ_EN12SpecificImpl4callEOS3_","s+":"AC"},{"a":"562AA53880E7","b":"562AA3E81000","o":"15070E7","s":"_ZN5mongo14future_details15SharedStateBase20transitionToFinishedEv","s+":"147"},{"a":"562AA53CBD0A","b":"562AA3E81000","o":"154AD0A","s":"_ZN5mongo12_GLOBAL__N_114executeCommandESt10shared_ptrINS0_13HandleRequest16ExecutionContextEE","s+":"22A"},{"a":"562AA53CC73E","b":"562AA3E81000","o":"154B73E","s":"_ZN5mongo12_GLOBAL__N_116receivedCommandsESt10shared_ptrINS0_13HandleRequest16ExecutionContextEE","s+":"1BE"},{"a":"562AA53CD456","b":"562AA3E81000","o":"154C456","s":"_ZN5mongo12_GLOBAL__N_115CommandOpRunner3runEv","s+":"36"},{"a":"562AA53C7947","b":"562AA3E81000","o":"1546947","s":"_ZN5mongo23ServiceEntryPointCommon13handleRequestEPNS_16OperationContextERKNS_7MessageESt10unique_ptrIKNS0_5HooksESt14default_deleteIS8_EE","s+":"307"},{"a":"562AA53B77DF","b":"562AA3E81000","o":"15367DF","s":"_ZN5mongo23ServiceEntryPointMongod13handleRequestEPNS_16OperationContextERKNS_7MessageE","s+":"4F"},{"a":"562AA540F837","b":"562AA3E81000","o":"158E837","s":"_ZN5mongo9transport19ServiceStateMachine4Impl14processMessageEv","s+":"127"},{"a":"562AA540FB67","b":"562AA3E81000","o":"158EB67","s":"_ZZNO5mongo14future_details10FutureImplINS0_8FakeVoidEE4thenIZNS_9transport19ServiceStateMachine4Impl12startNewLoopERKNS_6StatusEEUlvE0_EEDaOT_ENKUlOS2_E_clESE_.isra.718","s+":"27"},{"a":"562AA5412498","b":"562AA3E81000","o":"1591498","s":"_ZN5mongo9transport19ServiceStateMachine4Impl12startNewLoopERKNS_6StatusE","s+":"1A8"},{"a":"562AA541299F","b":"562AA3E81000","o":"159199F","s":"_ZZN5mongo15unique_functionIFvNS_6StatusEEE8makeImplIZNS_9transport19ServiceStateMachine4Impl15scheduleNewLoopES1_EUlS1_E_EEDaOT_EN12SpecificImpl4callEOS1_","s+":"7F"},{"a":"562AA7458CF1","b":"562AA3E81000","o":"35D7CF1","s":"_ZZN5mongo15unique_functionIFvNS_6StatusEEE8makeImplIZNS_9transport26ServiceExecutorSynchronous18runOnDataAvailableERKSt10shared_ptrINS5_7SessionEES3_EUlS1_E_EEDaOT_EN12SpecificImpl4callEOS1_","s+":"41"},{"a":"562AA5AA1083","b":"562AA3E81000","o":"1C20083","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_9transport15ServiceExecutor8scheduleENS0_IFvNS_6StatusEEEEEUlvE_EEDaOT_EN12SpecificImpl4callEv","s+":"33"},{"a":"562AA7458EAB","b":"562AA3E81000","o":"35D7EAB","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_9transport26ServiceExecutorSynchronous12scheduleTaskES2_NS4_15ServiceExecutor13ScheduleFlagsEEUlvE0_EEDaOT_EN12SpecificImpl4callEv","s+":"BB"},{"a":"562AA745CD5C","b":"562AA3E81000","o":"35DBD5C","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_25launchServiceWorkerThreadES2_EUlvE2_EEDaOT_EN12SpecificImpl4callEv","s+":"5C"},{"a":"562AA745CDCC","b":"562AA3E81000","o":"35DBDCC","s":"_ZN5mongo12_GLOBAL__N_17runFuncEPv","s+":"1C"},{"a":"7F8EF1BE6609","b":"7F8EF1BDD000","o":"9609","s":"start_thread","s+":"D9"},{"a":"7F8EF1B0D293","b":"7F8EF19EB000","o":"122293","s":"clone","s+":"43"}],"processInfo":{"mongodbVersion":"5.0.3","gitVersion":"657fea5a61a74d7a79df7aff8e4bcf0bc742b748","compiledModules":[],"uname":{"sysname":"Linux","release":"5.11.0-37-generic","version":"#41-Ubuntu SMP Mon Sep 20 16:39:20 UTC 2021","machine":"x86_64"},"somap":[{"b":"562AA3E81000","elfType":3,"buildId":"599A16F3858E6AA2EB083B0CA9E2A1A4FD2CAB13"},{"b":"7F8EF1BDD000","path":"/lib/x86_64-linux-gnu/libpthread.so.0","elfType":3,"buildId":"E54761F7B554D0FCC1562959665D93DFFBEBDAF0"},{"b":"7F8EF19EB000","path":"/lib/x86_64-linux-gnu/libc.so.6","elfType":3,"buildId":"099B9225BCB0D019D9D60884BE583EB31BB5F44E"}]}}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA7C7A135","b":"562AA3E81000","o":"3DF9135","s":"_ZN5mongo18stack_trace_detail12_GLOBAL__N_119printStackTraceImplERKNS1_7OptionsEPNS_14StackTraceSinkE.constprop.357","s+":"215"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA7C7CBC9","b":"562AA3E81000","o":"3DFBBC9","s":"_ZN5mongo15printStackTraceEv","s+":"29"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA7C7535C","b":"562AA3E81000","o":"3DF435C","s":"abruptQuitWithAddrSignal","s+":"EC"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"7F8EF1BF23C0","b":"7F8EF1BDD000","o":"153C0","s":"funlockfile","s+":"60"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68C7706","b":"562AA3E81000","o":"2A46706","s":"_ZN5mongo25DocumentSourceTeeConsumer9doDisposeEv","s+":"146"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68DDECD","b":"562AA3E81000","o":"2A5CECD","s":"_ZN5mongo8Pipeline7disposeEPNS_16OperationContextE","s+":"5D"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA6848543","b":"562AA3E81000","o":"29C7543","s":"_ZN5mongo19DocumentSourceFacetD0Ev","s+":"83"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68B994F","b":"562AA3E81000","o":"2A3894F","s":"_ZN5mongo37DocumentSourceSequentialDocumentCache12doOptimizeAtESt14_List_iteratorIN5boost13intrusive_ptrINS_14DocumentSourceEEEEPNSt7__cxx114listIS5_SaIS5_EEE","s+":"33F"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68DF088","b":"562AA3E81000","o":"2A5E088","s":"_ZN5mongo8Pipeline17optimizeContainerEPNSt7__cxx114listIN5boost13intrusive_ptrINS_14DocumentSourceEEESaIS6_EEE","s+":"68"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68E0188","b":"562AA3E81000","o":"2A5F188","s":"_ZN5mongo8Pipeline16optimizePipelineEv","s+":"38"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA687AC92","b":"562AA3E81000","o":"29F9C92","s":"_ZN5mongo20DocumentSourceLookUp13buildPipelineERKNS_8DocumentE","s+":"372"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA687E157","b":"562AA3E81000","o":"29FD157","s":"_ZN5mongo20DocumentSourceLookUp9doGetNextEv","s+":"F7"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA600C1C8","b":"562AA3E81000","o":"218B1C8","s":"_ZN5mongo14DocumentSource7getNextEv","s+":"48"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA68DDF2C","b":"562AA3E81000","o":"2A5CF2C","s":"_ZN5mongo8Pipeline7getNextEv","s+":"3C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA63CD6C9","b":"562AA3E81000","o":"254C6C9","s":"_ZN5mongo20PlanExecutorPipeline8_getNextEv","s+":"29"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA63CD76C","b":"562AA3E81000","o":"254C76C","s":"_ZN5mongo20PlanExecutorPipeline15getNextDocumentEPNS_8DocumentEPNS_8RecordIdE","s+":"4C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA63CD8EE","b":"562AA3E81000","o":"254C8EE","s":"_ZN5mongo20PlanExecutorPipeline7getNextEPNS_7BSONObjEPNS_8RecordIdE","s+":"EE"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA5EB2F0F","b":"562AA3E81000","o":"2031F0F","s":"_ZN5mongo12runAggregateEPNS_16OperationContextERKNS_15NamespaceStringERKNS_23AggregateCommandRequestERKNS_18LiteParsedPipelineERKNS_7BSONObjERKSt6vectorINS_9PrivilegeESaISF_EEPNS_3rpc21ReplyBuilderInterfaceE","s+":"335F"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA5EA8DB5","b":"562AA3E81000","o":"2027DB5","s":"_ZN5mongo12_GLOBAL__N_115PipelineCommand10Invocation3runEPNS_16OperationContextEPNS_3rpc21ReplyBuilderInterfaceE","s+":"75"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA6AC2C5F","b":"562AA3E81000","o":"2C41C5F","s":"_ZN5mongo14CommandHelpers20runCommandInvocationEPNS_16OperationContextERKNS_12OpMsgRequestEPNS_17CommandInvocationEPNS_3rpc21ReplyBuilderInterfaceE","s+":"7F"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA6AC7EFE","b":"562AA3E81000","o":"2C46EFE","s":"_ZN5mongo14CommandHelpers20runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEENS_9transport15ServiceExecutor14ThreadingModelE","s+":"1BE"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53BC257","b":"562AA3E81000","o":"153B257","s":"_ZN5mongo12_GLOBAL__N_120runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEE","s+":"97"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CE676","b":"562AA3E81000","o":"154D676","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl11_runCommandEv","s+":"146"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CEF06","b":"562AA3E81000","o":"154DF06","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern24_runCommandWithFailPointEv","s+":"86"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CF46C","b":"562AA3E81000","o":"154E46C","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern8_runImplEv","s+":"3C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53C08AC","b":"562AA3E81000","o":"153F8AC","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl3runEv","s+":"13C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53C294E","b":"562AA3E81000","o":"154194E","s":"_ZN5mongo12_GLOBAL__N_119ExecCommandDatabase12_commandExecEv","s+":"1CE"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CB320","b":"562AA3E81000","o":"154A320","s":"_ZZN5mongo12_GLOBAL__N_114executeCommandESt10shared_ptrINS0_13HandleRequest16ExecutionContextEEENUlvE0_clEv","s+":"450"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CD510","b":"562AA3E81000","o":"154C510","s":"_ZZN5mongo15unique_functionIFvPNS_14future_details15SharedStateBaseEEE8makeImplIZNS1_10FutureImplINS1_8FakeVoidEE16makeContinuationIvZZNOS9_4thenIZNS_12_GLOBAL__N_114executeCommandESt10shared_ptrINSC_13HandleRequest16ExecutionContextEEEUlvE0_EEDaOT_ENKUlvE1_clEvEUlPNS1_15SharedStateImplIS8_EESN_E_EENS7_ISI_EEOT0_EUlS3_E_EEDaSJ_EN12SpecificImpl4callEOS3_","s+":"80"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53880E7","b":"562AA3E81000","o":"15070E7","s":"_ZN5mongo14future_details15SharedStateBase20transitionToFinishedEv","s+":"147"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53D18D2","b":"562AA3E81000","o":"15508D2","s":"_ZN5mongo14future_details10FutureImplINS0_8FakeVoidEE11generalImplIZNOS3_17propagateResultToEPNS0_15SharedStateImplIS2_EEEUlOS2_E_ZNOS3_17propagateResultToES7_EUlONS_6StatusEE0_ZNOS3_17propagateResultToES7_EUlvE1_EEDaOT_OT0_OT1_","s+":"152"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53C4F5C","b":"562AA3E81000","o":"1543F5C","s":"_ZZN5mongo15unique_functionIFvPNS_14future_details15SharedStateBaseEEE8makeImplIZNS1_10FutureImplINS1_8FakeVoidEE16makeContinuationIvZZNOS9_4thenIZNS_12_GLOBAL__N_114executeCommandESt10shared_ptrINSC_13HandleRequest16ExecutionContextEEEUlvE_EEDaOT_ENKUlvE1_clEvEUlPNS1_15SharedStateImplIS8_EESN_E_EENS7_ISI_EEOT0_EUlS3_E_EEDaSJ_EN12SpecificImpl4callEOS3_","s+":"AC"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53880E7","b":"562AA3E81000","o":"15070E7","s":"_ZN5mongo14future_details15SharedStateBase20transitionToFinishedEv","s+":"147"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CBD0A","b":"562AA3E81000","o":"154AD0A","s":"_ZN5mongo12_GLOBAL__N_114executeCommandESt10shared_ptrINS0_13HandleRequest16ExecutionContextEE","s+":"22A"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CC73E","b":"562AA3E81000","o":"154B73E","s":"_ZN5mongo12_GLOBAL__N_116receivedCommandsESt10shared_ptrINS0_13HandleRequest16ExecutionContextEE","s+":"1BE"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53CD456","b":"562AA3E81000","o":"154C456","s":"_ZN5mongo12_GLOBAL__N_115CommandOpRunner3runEv","s+":"36"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53C7947","b":"562AA3E81000","o":"1546947","s":"_ZN5mongo23ServiceEntryPointCommon13handleRequestEPNS_16OperationContextERKNS_7MessageESt10unique_ptrIKNS0_5HooksESt14default_deleteIS8_EE","s+":"307"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA53B77DF","b":"562AA3E81000","o":"15367DF","s":"_ZN5mongo23ServiceEntryPointMongod13handleRequestEPNS_16OperationContextERKNS_7MessageE","s+":"4F"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA540F837","b":"562AA3E81000","o":"158E837","s":"_ZN5mongo9transport19ServiceStateMachine4Impl14processMessageEv","s+":"127"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA540FB67","b":"562AA3E81000","o":"158EB67","s":"_ZZNO5mongo14future_details10FutureImplINS0_8FakeVoidEE4thenIZNS_9transport19ServiceStateMachine4Impl12startNewLoopERKNS_6StatusEEUlvE0_EEDaOT_ENKUlOS2_E_clESE_.isra.718","s+":"27"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA5412498","b":"562AA3E81000","o":"1591498","s":"_ZN5mongo9transport19ServiceStateMachine4Impl12startNewLoopERKNS_6StatusE","s+":"1A8"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA541299F","b":"562AA3E81000","o":"159199F","s":"_ZZN5mongo15unique_functionIFvNS_6StatusEEE8makeImplIZNS_9transport19ServiceStateMachine4Impl15scheduleNewLoopES1_EUlS1_E_EEDaOT_EN12SpecificImpl4callEOS1_","s+":"7F"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA7458CF1","b":"562AA3E81000","o":"35D7CF1","s":"_ZZN5mongo15unique_functionIFvNS_6StatusEEE8makeImplIZNS_9transport26ServiceExecutorSynchronous18runOnDataAvailableERKSt10shared_ptrINS5_7SessionEES3_EUlS1_E_EEDaOT_EN12SpecificImpl4callEOS1_","s+":"41"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA5AA1083","b":"562AA3E81000","o":"1C20083","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_9transport15ServiceExecutor8scheduleENS0_IFvNS_6StatusEEEEEUlvE_EEDaOT_EN12SpecificImpl4callEv","s+":"33"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA7458EAB","b":"562AA3E81000","o":"35D7EAB","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_9transport26ServiceExecutorSynchronous12scheduleTaskES2_NS4_15ServiceExecutor13ScheduleFlagsEEUlvE0_EEDaOT_EN12SpecificImpl4callEv","s+":"BB"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA745CD5C","b":"562AA3E81000","o":"35DBD5C","s":"_ZZN5mongo15unique_functionIFvvEE8makeImplIZNS_25launchServiceWorkerThreadES2_EUlvE2_EEDaOT_EN12SpecificImpl4callEv","s+":"5C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"562AA745CDCC","b":"562AA3E81000","o":"35DBDCC","s":"_ZN5mongo12_GLOBAL__N_17runFuncEPv","s+":"1C"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"7F8EF1BE6609","b":"7F8EF1BDD000","o":"9609","s":"start_thread","s+":"D9"}}}',
       '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I",  "c":"CONTROL",  "id":31445,   "ctx":"conn4","msg":"Frame","attr":{"frame":{"a":"7F8EF1B0D293","b":"7F8EF19EB000","o":"122293","s":"clone","s+":"43"}}}']
      

      Show
      I tried to create a minimal reproduction case in that repo: https://github.com/davinov/mongo-5-query-segfault If you have 2 collections: first collection `data_1` with two docs: [{ "Identifier" : "K4" }, { "Identifier" : "K8" }] second collection `data_2` with one doc: [{ "Identifier" : "K4" }] and execute the following aggregation: db.data_1.aggregate([ { "$lookup" : { "as" : "_lookedUp" , "from" : "data_2" , "pipeline" : [ { "$group" : { "_id" : { "Identifier" : "$Identifier" } } }, { "$facet" : { "data_2" : [] } } ] } } ]) In mongo 4, this works as expected, the result being: [{ '_id' : ObjectId(), 'Identifier' : 'K4' , '_lookedUp' : [{ 'data_2' : [{ '_id' : { 'Identifier' : 'K4' }}]}]}, { '_id' : ObjectId(), 'Identifier' : 'K8' , '_lookedUp' : [{ 'data_2' : [{ '_id' : { 'Identifier' : 'K4' }}]}]}] In mongo 5, the server crashes with the following logs: '{"t":{"$date":"2021-10-12T10:29:42.544+00:00"},"s":"F", "c":"CONTROL", "id":4757800, "ctx":"conn4","msg":"Writing fatal message","attr":{"message":"Invalid access at address: 0"}}', '{"t":{"$date":"2021-10-12T10:29:42.544+00:00"},"s":"F", "c":"CONTROL", "id":4757800, "ctx":"conn4","msg":"Writing fatal message","attr":{"message":"Got signal: 11 (Segmentation fault).\\n"}}', '{"t":{"$date":"2021-10-12T10:29:42.792+00:00"},"s":"I", "c":"CONTROL", "id":31380, "ctx":"conn4","msg":"BACKTRACE","attr":{"bt":{"backtrace":[{"a":"562AA7C7A135","b":"562AA3E81000","o":"3DF9135","s":"_ZN5mongo18stack_trace_detail12_GLOBAL__N_119printStackTraceImplERKNS1_7OptionsEPNS_14StackTraceSinkE.constprop.357","s+":"215"},{"a":"562AA7C7CBC9","b":"562AA3E81000","o":"3DFBBC9","s":"_ZN5mongo15printStackTraceEv","s+":"29"},{"a":"562AA7C7535C","b":"562AA3E81000","o":"3DF435C","s":"abruptQuitWithAddrSignal","s+":"EC"},{"a":"7F8EF1BF23C0","b":"7F8EF1BDD000","o":"153C0","s":"funlockfile","s+":"60"},{"a":"562AA68C7706","b":"562AA3E81000","o":"2A46706","s":"_ZN5mongo25DocumentSourceTeeConsumer9doDisposeEv","s+":"146"},{"a":"562AA68DDECD","b":"562AA3E81000","o":"2A5CECD","s":"_ZN5mongo8Pipeline7disposeEPNS_16OperationContextE","s+":"5D"},{"a":"562AA6848543","b":"562AA3E81000","o":"29C7543","s":"_ZN5mongo19DocumentSourceFacetD0Ev","s+":"83"},{"a":"562AA68B994F","b":"562AA3E81000","o":"2A3894F","s":"_ZN5mongo37DocumentSourceSequentialDocumentCache12doOptimizeAtESt14_List_iteratorIN5boost13intrusive_ptrINS_14DocumentSourceEEEEPNSt7__cxx114listIS5_SaIS5_EEE","s+":"33F"},{"a":"562AA68DF088","b":"562AA3E81000","o":"2A5E088","s":"_ZN5mongo8Pipeline17optimizeContainerEPNSt7__cxx114listIN5boost13intrusive_ptrINS_14DocumentSourceEEESaIS6_EEE","s+":"68"},{"a":"562AA68E0188","b":"562AA3E81000","o":"2A5F188","s":"_ZN5mongo8Pipeline16optimizePipelineEv","s+":"38"},{"a":"562AA687AC92","b":"562AA3E81000","o":"29F9C92","s":"_ZN5mongo20DocumentSourceLookUp13buildPipelineERKNS_8DocumentE","s+":"372"},{"a":"562AA687E157","b":"562AA3E81000","o":"29FD157","s":"_ZN5mongo20DocumentSourceLookUp9doGetNextEv","s+":"F7"},{"a":"562AA600C1C8","b":"562AA3E81000","o":"218B1C8","s":"_ZN5mongo14DocumentSource7getNextEv","s+":"48"},{"a":"562AA68DDF2C","b":"562AA3E81000","o":"2A5CF2C","s":"_ZN5mongo8Pipeline7getNextEv","s+":"3C"},{"a":"562AA63CD6C9","b":"562AA3E81000","o":"254C6C9","s":"_ZN5mongo20PlanExecutorPipeline8_getNextEv","s+":"29"},{"a":"562AA63CD76C","b":"562AA3E81000","o":"254C76C","s":"_ZN5mongo20PlanExecutorPipeline15getNextDocumentEPNS_8DocumentEPNS_8RecordIdE","s+":"4C"},{"a":"562AA63CD8EE","b":"562AA3E81000","o":"254C8EE","s":"_ZN5mongo20PlanExecutorPipeline7getNextEPNS_7BSONObjEPNS_8RecordIdE","s+":"EE"},{"a":"562AA5EB2F0F","b":"562AA3E81000","o":"2031F0F","s":"_ZN5mongo12runAggregateEPNS_16OperationContextERKNS_15NamespaceStringERKNS_23AggregateCommandRequestERKNS_18LiteParsedPipelineERKNS_7BSONObjERKSt6vectorINS_9PrivilegeESaISF_EEPNS_3rpc21ReplyBuilderInterfaceE","s+":"335F"},{"a":"562AA5EA8DB5","b":"562AA3E81000","o":"2027DB5","s":"_ZN5mongo12_GLOBAL__N_115PipelineCommand10Invocation3runEPNS_16OperationContextEPNS_3rpc21ReplyBuilderInterfaceE","s+":"75"},{"a":"562AA6AC2C5F","b":"562AA3E81000","o":"2C41C5F","s":"_ZN5mongo14CommandHelpers20runCommandInvocationEPNS_16OperationContextERKNS_12OpMsgRequestEPNS_17CommandInvocationEPNS_3rpc21ReplyBuilderInterfaceE","s+":"7F"},{"a":"562AA6AC7EFE","b":"562AA3E81000","o":"2C46EFE","s":"_ZN5mongo14CommandHelpers20runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEENS_9transport15ServiceExecutor14ThreadingModelE","s+":"1BE"},{"a":"562AA53BC257","b":"562AA3E81000","o":"153B257","s":"_ZN5mongo12_GLOBAL__N_120runCommandInvocationESt10shared_ptrINS_23RequestExecutionContextEES1_INS_17CommandInvocationEE","s+":"97"},{"a":"562AA53CE676","b":"562AA3E81000","o":"154D676","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl11_runCommandEv","s+":"146"},{"a":"562AA53CEF06","b":"562AA3E81000","o":"154DF06","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern24_runCommandWithFailPointEv","s+":"86"},{"a":"562AA53CF46C","b":"562AA3E81000","o":"154E46C","s":"_ZN5mongo12_GLOBAL__N_132RunCommandAndWaitForWriteConcern8_runImplEv","s+":"3C"},{"a":"562AA53C08AC","b":"562AA3E81000","o":"153F8AC","s":"_ZN5mongo12_GLOBAL__N_114RunCommandImpl3runEv","s+":"13C"},{"a":"562AA53C294E","b":"562AA3E81000","o":"154194E","s":"_ZN5mongo12_GLOBAL__N_119ExecCommandDatabase12_commandExecEv","s+":"1CE"},{"a":"562AA53CB320","b":"562AA3E81000","o":"154A320","s":"_ZZN5mongo12_GLOBAL__N_114executeCommandESt10shared_ptrINS0_13HandleRequest16ExecutionContextEEENUlvE0_clEv","s+":"450"},{"a":"562AA53CD510","b":"562AA3E81000","o":"154C510","s":"_ZZN5mongo15unique_functionIFvPNS_14future_details15SharedStateBaseEEE8makeImplIZNS1_10FutureImplINS1_8FakeVoidEE16makeContinuationIvZZNOS9_4thenIZNS_12_GLOBAL__N_114executeCommandESt10shared_ptrINSC_13HandleRequest16ExecutionContextEEEUlvE0_EEDaOT_ENKUlvE1_clEvEUlPNS1_15SharedStateImplIS8_EESN_E_EENS7_ISI_EEOT0_EUlS3_E_EEDaSJ_EN12SpecificImpl4callEOS3_","s+":"80"},{"a":"562AA53880E7","b":"562AA3E81000","o":"15070E7","s":"_ZN5mongo14future_details15SharedStateBase20transitionToFinishedEv","s+":"147"},{"a":"562AA53D18D2","b":"562AA3E81000","o":"15508D2","s":"_ZN5mongo14future_details10FutureImplINS0_8FakeVoidEE11generalImplIZNOS3_17propagateResultToEPNS0_15SharedStateImplIS2_EEEUlOS2_E_ZNOS3_17propagateResultToES7_EUlONS_6StatusEE0_ZNO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    • Sprint:
      QO 2021-10-18

      Description

      Hello,

      After upgrading to mongo 5, I've noticed some aggregations that make use of $lookup, $group and $facet were crashing the server.

      Thanks for your help!

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              Assignee:
              james.wahlin James Wahlin
              Reporter:
              david.nowinsky@toucantoco.com David Nowinsky
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                Created:
                Updated:
                Resolved: