Updating embedded property results in KeyNotFound exception

[sync-by-unito]

This is the stack trace of an object store test that reproduces the issue:

/realm-core/src/realm/array.hpp:754: [realm-core-11.10.0] Assertion failed: has_refs()
0   realm-object-store-tests            0x00000001124f1c9f _ZN5realm4utilL18terminate_internalERNSt3__118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 31
1   realm-object-store-tests            0x00000001124f1f33 _ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE + 243
2   realm-object-store-tests            0x0000000112216ba2 _ZNK5realm5Array20get_as_ref_or_taggedEm + 98
3   realm-object-store-tests            0x00000001121bb6ed _ZN5realm7Cluster4initENS_6MemRefE + 77
4   realm-object-store-tests            0x00000001121dfd50 _ZN5realm16ClusterNodeInner7recurseIbZNKS0_7try_getENS_6ObjKeyERNS_11ClusterNode5StateEE3$_3EET_RNS0_9ChildInfoET0_ + 224
5   realm-object-store-tests            0x00000001121dfc12 _ZNK5realm16ClusterNodeInner7try_getENS_6ObjKeyERNS_11ClusterNode5StateE + 114
6   realm-object-store-tests            0x00000001121e949b _ZZNK5realm16ClusterNodeInner7try_getENS_6ObjKeyERNS_11ClusterNode5StateEENK3$_3clEPKS2_RNS0_9ChildInfoE + 59
7   realm-object-store-tests            0x00000001121dfea7 _ZN5realm16ClusterNodeInner7recurseIbZNKS0_7try_getENS_6ObjKeyERNS_11ClusterNode5StateEE3$_3EET_RNS0_9ChildInfoET0_ + 567
8   realm-object-store-tests            0x00000001121dfc12 _ZNK5realm16ClusterNodeInner7try_getENS_6ObjKeyERNS_11ClusterNode5StateE + 114
9   realm-object-store-tests            0x00000001121bb282 _ZNK5realm11ClusterNode3getENS_6ObjKeyERNS0_5StateE + 82
10  realm-object-store-tests            0x00000001121e4608 _ZNK5realm11ClusterTree3getENS_6ObjKeyE + 88
11  realm-object-store-tests            0x000000010f867f9b _ZNK5realm16TableClusterTree3getENS_6ObjKeyE + 75
12  realm-object-store-tests            0x000000010f867b1c _ZNK5realm5Table10get_objectENS_6ObjKeyE + 156
13  realm-object-store-tests            0x0000000112319273 _ZNK5realm3Obj18_get_linked_objectENS_6ColKeyENS_5MixedE + 531
14  realm-object-store-tests            0x000000010f87bcf3 _ZNK5realm3Obj17get_linked_objectENS_6ColKeyE + 99
15  realm-object-store-tests            0x0000000111efae5f _ZN5realm4sync18InstructionApplier13resolve_fieldINS_4util8overloadIJZNS1_clERKNS0_5instr6UpdateEE3$_8ZNS1_clES8_E3$_9ZNS1_clES8_E4$_10ZNS1_clES8_E4$_11ZNS1_clES8_E4$_12ZNS1_clES8_E4$_13EEEEEvRNS_3ObjENS0_12InternStringENSt3__111__wrap_iterIPKN5mpark7variantIJSI_jEEEEESQ_PKcOT_ + 2639
16  realm-object-store-tests            0x0000000111ee67df _ZN5realm4sync18InstructionApplier12resolve_pathINS_4util8overloadIJZNS1_clERKNS0_5instr6UpdateEE3$_8ZNS1_clES8_E3$_9ZNS1_clES8_E4$_10ZNS1_clES8_E4$_11ZNS1_clES8_E4$_12ZNS1_clES8_E4$_13EEEEEvRKNS5_15PathInstructionEPKcOT_ + 687
17  realm-object-store-tests            0x0000000111ee651f _ZN5realm4sync18InstructionApplierclERKNS0_5instr6UpdateE + 223
18  realm-object-store-tests            0x0000000111e13af4 _ZNK5realm4sync11Instruction5visitIRNS0_18InstructionApplierEEEDcOT_ + 500
19  realm-object-store-tests            0x0000000111e13773 _ZN5realm4sync18InstructionApplier5applyIS1_EEvRT_RKNS0_9ChangesetEPNS_4util6LoggerE + 147
20  realm-object-store-tests            0x0000000111e0d925 _ZN5realm4sync18InstructionApplier5applyERKNS0_9ChangesetEPNS_4util6LoggerE + 37
21  realm-object-store-tests            0x0000000111e0cf8a _ZN5realm4sync13ClientHistory27integrate_server_changesetsERKNS0_12SyncProgressEPKyPKNS0_11Transformer15RemoteChangesetEmRNS0_11VersionInfoENS0_18DownloadBatchStateERNS_4util6LoggerEPNS1_20SyncTransactReporterE + 1482
22  realm-object-store-tests            0x0000000111e32b0e _ZN5realm4sync10ClientImpl7Session20integrate_changesetsERNS0_17ClientReplicationERKNS0_12SyncProgressEyRKNSt3__16vectorINS0_11Transformer15RemoteChangesetENS8_9allocatorISB_EEEERNS0_11VersionInfoENS0_18DownloadBatchStateE + 478
23  realm-object-store-tests            0x0000000111ec159b _ZN5realm4sync10ClientImpl7Session29initiate_integrate_changesetsEyNS0_18DownloadBatchStateERKNSt3__16vectorINS0_11Transformer15RemoteChangesetENS4_9allocatorIS7_EEEE + 427
24  realm-object-store-tests            0x0000000111e31e70 _ZN5realm4sync10ClientImpl7Session24receive_download_messageERKNS0_12SyncProgressEyNS0_18DownloadBatchStateExRKNSt3__16vectorINS0_11Transformer15RemoteChangesetENS7_9allocatorISA_EEEE + 1552
25  realm-object-store-tests            0x0000000111e31854 _ZN5realm4sync10ClientImpl10Connection24receive_download_messageEyRKNS0_12SyncProgressEyxNS0_18DownloadBatchStateERKNSt3__16vectorINS0_11Transformer15RemoteChangesetENS7_9allocatorISA_EEEE + 196
26  realm-object-store-tests            0x0000000111e495f7 _ZN5realm5_impl14ClientProtocol22parse_download_messageINS_4sync10ClientImpl10ConnectionEEEvRT_RNS0_16HeaderLineParserE + 2711
27  realm-object-store-tests            0x0000000111e2ec70 _ZN5realm5_impl14ClientProtocol22parse_message_receivedINS_4sync10ClientImpl10ConnectionEEEvRT_NSt3__117basic_string_viewIcNS8_11char_traitsIcEEEE + 448
28  realm-object-store-tests            0x0000000111e2bd5e _ZN5realm4sync10ClientImpl10Connection23handle_message_receivedEPKcm + 78
29  realm-object-store-tests            0x0000000111e2bc6d _ZN5realm4sync10ClientImpl10Connection33websocket_binary_message_receivedEPKcm + 157
30  realm-object-store-tests            0x000000011200009d _ZN5realm4util9websocket12_GLOBAL__N_112EZSocketImpl33websocket_binary_message_receivedEPKcm + 45
31  realm-object-store-tests            0x0000000111ff63fd _ZN12_GLOBAL__N_19WebSocket17frame_reader_loopEv + 269
32  realm-object-store-tests            0x0000000111ff86b4 _ZZN12_GLOBAL__N_19WebSocket17frame_reader_loopEvENKUlNSt3__110error_codeEmE_clES2_m + 196
33  realm-object-store-tests            0x0000000111ff85e3 _ZN5realm4util14UniqueFunctionIFvNSt3__110error_codeEmEE17call_regular_voidIZN12_GLOBAL__N_19WebSocket17frame_reader_loopEvEUlS3_mE_EEvNS2_17integral_constantIbLb1EEERT_OS3_Om + 83
34  realm-object-store-tests            0x0000000111ff8568 _ZN5realm4util14UniqueFunctionIFvNSt3__110error_codeEmEE12SpecificImplIZN12_GLOBAL__N_19WebSocket17frame_reader_loopEvEUlS3_mE_E4callEOS3_Om + 72
35  realm-object-store-tests            0x0000000111c3f7d8 _ZNK5realm4util14UniqueFunctionIFvNSt3__110error_codeEmEEclES3_m + 168
36  realm-object-store-tests            0x0000000111c3f71c _ZN5realm4util7network7Service9AsyncOper29do_recycle_and_execute_helperINS0_14UniqueFunctionIFvNSt3__110error_codeEmEEEJS7_mEEEvbRbT_DpT0_ + 124
37  realm-object-store-tests            0x0000000111c3f612 _ZN5realm4util7network7Service9AsyncOper22do_recycle_and_executeINS0_14UniqueFunctionIFvNSt3__110error_codeEmEEEJRS7_RmEEEvbRT_DpOT0_ + 162
38  realm-object-store-tests            0x0000000111c521d1 _ZN5realm4util7network7Service14BasicStreamOpsINS1_3ssl6StreamEE16BufferedReadOperINS0_14UniqueFunctionIFvNSt3__110error_codeEmEEEE19recycle_and_executeEv + 689
39  realm-object-store-tests            0x0000000111fe315d _ZN5realm4util7network7Service4Impl7executeERNSt3__110unique_ptrINS2_9AsyncOperENS2_18LendersOperDeleterEEE + 29
40  realm-object-store-tests            0x0000000111fddf05 _ZN5realm4util7network7Service4Impl3runEv + 325
41  realm-object-store-tests            0x0000000111fddd8d _ZN5realm4util7network7Service3runEv + 29
42  realm-object-store-tests            0x0000000111ebeb89 _ZN5realm4sync10ClientImpl3runEv + 73
43  realm-object-store-tests            0x0000000111ec60ed _ZN5realm4sync6Client3runEv + 29
44  realm-object-store-tests            0x0000000111aa7f06 _ZZN5realm5_impl10SyncClientC1ENSt3__110unique_ptrINS_4util6LoggerENS2_14default_deleteIS5_EEEERKNS_16SyncClientConfigENS2_8weak_ptrIKNS_11SyncManagerEEEENKUlvE0_clEv + 246
45  realm-object-store-tests            0x0000000111aa7dbd _ZNSt3__1L8__invokeIZN5realm5_impl10SyncClientC1ENS_10unique_ptrINS1_4util6LoggerENS_14default_deleteIS6_EEEERKNS1_16SyncClientConfigENS_8weak_ptrIKNS1_11SyncManagerEEEEUlvE0_JEEEDTclclsr3std3__1E7forwardIT_Efp_Espclsr3std3__1E7forwardIT0_Efp0_EEEOSI_DpOSJ_ + 29
46  realm-object-store-tests            0x0000000111aa7d25 _ZNSt3__1L16__thread_executeINS_10unique_ptrINS_15__thread_structENS_14default_deleteIS2_EEEEZN5realm5_impl10SyncClientC1ENS1_INS6_4util6LoggerENS3_ISA_EEEERKNS6_16SyncClientConfigENS_8weak_ptrIKNS6_11SyncManagerEEEEUlvE0_JEJEEEvRNS_5tupleIJT_T0_DpT1_EEENS_15__tuple_indicesIJXspT2_EEEE + 37
47  realm-object-store-tests            0x0000000111aa75a6 _ZNSt3__1L14__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEZN5realm5_impl10SyncClientC1ENS2_INS7_4util6LoggerENS4_ISB_EEEERKNS7_16SyncClientConfigENS_8weak_ptrIKNS7_11SyncManagerEEEEUlvE0_EEEEEPvSN_ + 118
48  libsystem_pthread.dylib             0x00007fff724ad109 _pthread_start + 148
49  libsystem_pthread.dylib             0x00007fff724a8b8b thread_start + 15!!! IMPORTANT: Please report this at https://github.com/realm/realm-core/issues/new/choose

[sync-by-unito]

➤ Josman Perez Exposito commented:

Hello [~daniel.tabacaru], any updates on this? Do we have an ETA?

[sync-by-unito]

➤ Daniel Tabacaru commented:

[~josman.perez] Not yet unfortunately. The size of the partition makes it hard to pinpoint the problem. I am getting more people involved in the investigation.

[sync-by-unito]

➤ Josman Perez Exposito commented:

Thank you [~daniel.tabacaru]. One quick question: Terminating/Renabling Sync could fix this issue?

[sync-by-unito]

➤ Jørgen Edelbo commented:

No, that will not fix the issue. I have a very strong feeling that I will be able to find the root cause for this tomorrow.

[sync-by-unito]

➤ Josman Perez Exposito commented:

Thanks [~jorgen.edelbo], I suspected that. However, why is this ticket closed?

[jedelbo]

An issue is automatically closed when we merge a PR that claims to fix the issue.

[sync-by-unito]

➤ Josman Perez Exposito commented:

Oh ok, thanks for the info [~jorgen.edelbo]