Invalid concurrent access to managed object calling 'release'; Stacktrace #25
Description
Hi i'm getting following warnings in my code.
2016-05-31 17:13:16.988 ABC-iPhone[5183:2764409] Invalid concurrent access to managed object calling 'release'; Stacktrace: (
0 ABC-iPhone 0x0000000100874ad0 ValidateConcurrency + 248
1 ABC-iPhone 0x0000000100874698 CustomSubclassRelease + 32
2 ABC-iPhone 0x00000001004c6710 _TFC17ABC_iPhone10SWCProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 136
3 ABC-iPhone 0x00000001003734c0 _TFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 80
4 ABC-iPhone 0x0000000100373548 _TToFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 76
5 CoreData 0x00000001845505cc <redacted> + 172
6 CoreData 0x000000018454f0dc <redacted> + 180
7 CoreData 0x00000001845e2490 <redacted> + 784
8 CoreData 0x00000001845e2a50 <redacted> + 348
9 CoreData 0x00000001845e4d8c <redacted> + 108
10 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
11 libdispatch.dylib 0x0000000101e52040 _dispatch_barrier_sync_f_slow_invoke + 736
12 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
13 libdispatch.dylib 0x0000000101e474e4 _dispatch_main_queue_callback_4CF + 2096
14 CoreFoundation 0x0000000182690d50 <redacted> + 12
15 CoreFoundation 0x000000018268ebb8 <redacted> + 1628
16 CoreFoundation 0x00000001825b8c50 CFRunLoopRunSpecific + 384
17 GraphicsServices 0x0000000183ea0088 GSEventRunModal + 180
18 UIKit 0x00000001878a2088 UIApplicationMain + 204
19 ABC-iPhone 0x0000000100737a88 main + 144
20 libdyld.dylib 0x00000001821568b8 <redacted> + 4
)
2016-05-31 17:13:16.991 SweetCouch-iPhone[5183:2764409] Invalid concurrent access to managed object calling 'release'; Stacktrace: (
0 ABC-iPhone 0x0000000100874ad0 ValidateConcurrency + 248
1 ABC-iPhone 0x0000000100874698 CustomSubclassRelease + 32
2 ABC-iPhone 0x00000001003734ec _TFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 124
3 ABC-iPhone 0x0000000100373548 _TToFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 76
4 CoreData 0x00000001845505cc <redacted> + 172
5 CoreData 0x000000018454f0dc <redacted> + 180
6 CoreData 0x00000001845e2490 <redacted> + 784
7 CoreData 0x00000001845e2a50 <redacted> + 348
8 CoreData 0x00000001845e4d8c <redacted> + 108
9 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
10 libdispatch.dylib 0x0000000101e52040 _dispatch_barrier_sync_f_slow_invoke + 736
11 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
12 libdispatch.dylib 0x0000000101e474e4 _dispatch_main_queue_callback_4CF + 2096
13 CoreFoundation 0x0000000182690d50 <redacted> + 12
14 CoreFoundation 0x000000018268ebb8 <redacted> + 1628
15 CoreFoundation 0x00000001825b8c50 CFRunLoopRunSpecific + 384
16 GraphicsServices 0x0000000183ea0088 GSEventRunModal + 180
17 UIKit 0x00000001878a2088 UIApplicationMain + 204
18 ABC-iPhone 0x0000000100737a88 main + 144
19 libdyld.dylib 0x00000001821568b8 <redacted> + 4
)
2016-05-31 17:13:16.995 SweetCouch-iPhone[5183:2764409] Invalid concurrent access to managed object calling 'release'; Stacktrace: (
0 ABC-iPhone 0x0000000100874ad0 ValidateConcurrency + 248
1 ABC-iPhone 0x0000000100874698 CustomSubclassRelease + 32
2 ABC-iPhone 0x00000001004c6710 _TFC17ABC_iPhone10SWCProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 136
3 ABC-iPhone 0x00000001003734c0 _TFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 80
4 ABC-iPhone 0x0000000100373548 _TToFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 76
5 CoreData 0x00000001845505cc <redacted> + 172
6 CoreData 0x000000018454f0dc <redacted> + 180
7 CoreData 0x00000001845e2490 <redacted> + 784
8 CoreData 0x00000001845e2a50 <redacted> + 348
9 CoreData 0x00000001845e4d8c <redacted> + 108
10 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
11 libdispatch.dylib 0x0000000101e52040 _dispatch_barrier_sync_f_slow_invoke + 736
12 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
13 libdispatch.dylib 0x0000000101e474e4 _dispatch_main_queue_callback_4CF + 2096
14 CoreFoundation 0x0000000182690d50 <redacted> + 12
15 CoreFoundation 0x000000018268ebb8 <redacted> + 1628
16 CoreFoundation 0x00000001825b8c50 CFRunLoopRunSpecific + 384
17 GraphicsServices 0x0000000183ea0088 GSEventRunModal + 180
18 UIKit 0x00000001878a2088 UIApplicationMain + 204
19 ABC-iPhone 0x0000000100737a88 main + 144
20 libdyld.dylib 0x00000001821568b8 <redacted> + 4
)
2016-05-31 17:13:16.998 SweetCouch-iPhone[5183:2764409] Invalid concurrent access to managed object calling 'release'; Stacktrace: (
0 ABC-iPhone 0x0000000100874ad0 ValidateConcurrency + 248
1 ABC-iPhone 0x0000000100874698 CustomSubclassRelease + 32
2 ABC-iPhone 0x00000001003734ec _TFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 124
3 ABC-iPhone 0x0000000100373548 _TToFC17ABC_iPhone16SWCPickedProductcfT6entityCSo19NSEntityDescription30insertIntoManagedObjectContextGSqCSo22NSManagedObjectContext__S0_ + 76
4 CoreData 0x00000001845505cc <redacted> + 172
5 CoreData 0x000000018454f0dc <redacted> + 180
6 CoreData 0x00000001845e2490 <redacted> + 784
7 CoreData 0x00000001845e2a50 <redacted> + 348
8 CoreData 0x00000001845e4d8c <redacted> + 108
9 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
10 libdispatch.dylib 0x0000000101e52040 _dispatch_barrier_sync_f_slow_invoke + 736
11 libdispatch.dylib 0x0000000101e41a3c _dispatch_client_callout + 16
12 libdispatch.dylib 0x0000000101e474e4 _dispatch_main_queue_callback_4CF + 2096
13 CoreFoundation 0x0000000182690d50 <redacted> + 12
14 CoreFoundation 0x000000018268ebb8 <redacted> + 1628
15 CoreFoundation 0x00000001825b8c50 CFRunLoopRunSpecific + 384
16 GraphicsServices 0x0000000183ea0088 GSEventRunModal + 180
17 UIKit 0x00000001878a2088 UIApplicationMain + 204
18 ABC-iPhone 0x0000000100737a88 main + 144
19 libdyld.dylib 0x00000001821568b8 <redacted> + 4
)
.
.
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So on
I'm using 4 different Managed Object Models and their 4 respective Persistent Store Coordinators.
There are 2 Managed Object Context for each coordinator, one context is for main thread, and other is for background lengthy operations.
I'm pretty sure i'm not accessing contexts on multiple threads, doing all operations within perform block of respective context.
I'm using swift 2.0
I'm not sure whats happening here, plz help.
Following is the code where i'm accessing data, and getting this warning
//Using this context for main thread
internal lazy var managedObjectContext: NSManagedObjectContext? = {
let coordinator = self.persistentStoreCoordinator
if coordinator == nil {
return nil
}
var managedObjectContext = NSManagedObjectContext(concurrencyType: NSManagedObjectContextConcurrencyType.MainQueueConcurrencyType)
managedObjectContext.persistentStoreCoordinator = coordinator
return managedObjectContext
}()
//Using this context for background operations
internal lazy var managedObjectContext_lenghtyThread: NSManagedObjectContext? = {
if self.managedObjectContext == nil{return nil}
var managedObjectContext_lenghtyThread = NSManagedObjectContext(concurrencyType: NSManagedObjectContextConcurrencyType.PrivateQueueConcurrencyType)
managedObjectContext_lenghtyThread.parentContext = self.managedObjectContext
return managedObjectContext_lenghtyThread
}()
//Here i'm getting this warning
let fetchRequest = NSFetchRequest(entityName: self.ENTITY_SWCPickedProduct)
self.managedObjectContext_lenghtyThread?.performBlock({ () -> Void in
let resultOject:AnyObject? = try?
self.managedObjectContext_lenghtyThread!.executeFetchRequest(fetchRequest)
if resultOject is [SWCPickedProduct]
{
}
})