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Type:
Bug
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Resolution: Done
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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2 - S (<= 1 week)
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5765
The old_realm instance that Core hands to SDK during a migration callback should be frozen or have autorefresh turned off since there's no expectation that notifications from old_realm will be useful, especially when the schema is modified. We ran into a crash in dart (which is a GC language and we don't have mechanics in place to destroy objects created during a migration) by creating a results sorted on a property that will be renamed as part of the migration. When the migration completes, Core tries to refresh the collection and crashes with:
terminating with uncaught exception of type realm::LogicError: Column does not exist Exception backtrace: 0 librealm_dart.dylib 0x0000000117715554 _ZN5realm10LogicErrorC1ENS0_9ErrorKindE + 52 1 librealm_dart.dylib 0x000000011771fa74 _ZNK5realm5Table12check_columnENS_6ColKeyE + 92 2 librealm_dart.dylib 0x00000001179ba87c _ZNK5realm3Obj7get_anyENS_6ColKeyE + 60 3 librealm_dart.dylib 0x0000000117a2233c _ZN5realm14BaseDescriptor6Sorter18cache_first_columnERNS0_10IndexPairsE + 176 4 librealm_dart.dylib 0x0000000117a4a788 _ZN5realm9TableView7do_sortERKNS_18DescriptorOrderingE + 600 5 librealm_dart.dylib 0x0000000117a49e20 _ZN5realm9TableView7do_syncEv + 528 6 librealm_dart.dylib 0x0000000117765dd8 _ZN5realm5_impl15ResultsNotifier3runEv + 660 7 librealm_dart.dylib 0x000000011775f3d8 _ZN5realm5_impl16RealmCoordinator19run_async_notifiersEv + 1748 8 librealm_dart.dylib 0x000000011775ec90 _ZN5realm5_impl16RealmCoordinator9on_changeEv + 24 9 librealm_dart.dylib 0x000000011774a4b0 _ZN5realm5_impl20ExternalCommitHelper6listenEv + 204 10 librealm_dart.dylib 0x000000011774a578 _ZNSt3__1L14__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEZN5realm5_impl20ExternalCommitHelperC1ERNS8_16RealmCoordinatorEE3$_0EEEEEPvSE_ + 52 11 libsystem_pthread.dylib 0x00000001a83a826c _pthread_start + 148 12 libsystem_pthread.dylib 0x00000001a83a308c thread_start + 8