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novastone-media / MQTT-Client-Framework

iOS, macOS, tvOS native ObjectiveC MQTT Client Framework
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null pointer dereference when executeFetchRequest: invoked #609

Open fantexi023 opened 2 years ago

fantexi023 commented 2 years ago

crash info as follows: Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: 0x00000000 at 0x0000000000000000 Crashed Thread: 51

Thread 51 Crashed: 0 CoreData _fetchResultSetAllocateInitialize 1 CoreData _fetchResultSetAllocateInitialize 2 CoreData _newFetchedRowsForFetchPlan_MT 3 CoreData executeFetchRequest 4 CoreData -[NSSQLFetchRequestContext executeRequestCore:] 5 CoreData -[NSSQLStoreRequestContext executeRequestUsingConnection:] 6 CoreData ___52-[NSSQLDefaultConnectionManager handleStoreRequest:]_blockinvoke 7 CoreData 37-[NSSQLiteConnection performAndWait:]_block_invoke 8 libdispatch.dylib dispatch_client_callout 9 libdispatch.dylib dispatch_lane_barrier_sync_invoke_and_complete 10 CoreData -[NSSQLiteConnection performAndWait:] 11 CoreData -[NSSQLDefaultConnectionManager handleStoreRequest:] 12 CoreData -[NSSQLCoreDispatchManager routeStoreRequest:] 13 CoreData -[NSSQLCore dispatchRequest:withRetries:] 14 CoreData -[NSSQLCore executeRequest:withContext:error:] 15 CoreData _65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke.657 16 CoreData -[NSPersistentStoreCoordinator _routeHeavyweightBlock:] 17 CoreData -[NSPersistentStoreCoordinator executeRequest:withContext:error:] 18 CoreData -[NSManagedObjectContext executeFetchRequest:error:] 19 HLLMQTTClient 60-[MQTTCoreDataPersistence allFlowsforClientId:incomingFlag:]_block_invoke MQTTCoreDataPersistence.m:321 20 CoreData _developerSubmittedBlockToNSManagedObjectContextPerform 21 libdispatch.dylib dispatch_client_callout 22 libdispatch.dylib dispatch_lane_barrier_sync_invoke_and_complete 23 CoreData -[NSManagedObjectContext performBlockAndWait:] 24 HLLMQTTClient -[MQTTCoreDataPersistence allFlowsforClientId:incomingFlag:] MQTTCoreDataPersistence.m:311 25 HLLMQTTClient -[MQTTSession checkTxFlows] MQTTSession.m:633 26 HLLMQTTClient 41-[MQTTSession decoder:didReceiveMessage:]_block_invoke MQTTSession.m:804 27 libdispatch.dylib dispatch_client_callout 28 libdispatch.dylib dispatch_continuation_pop$VARIANT$armv81 29 libdispatch.dylib dispatch_source_invoke$VARIANT$armv81 30 libdispatch.dylib __dispatch_lane_serial_drain$VARIANT$armv81 31 libdispatch.dylib dispatch_lane_invoke$VARIANT$armv81 32 libdispatch.dylib dispatch_workloop_worker_thread 33 libsystem_pthread.dylib __pthread_wqthread

my mqtt version is the newest one . hope to fix it . thanks

tomatobin commented 1 year ago

Same problem