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Questions tagged [nszombie]

NSZombie is an Apple OS-specific (OSX and iOS) tool for debugging issues with reference-counting.

NSZombie is an Apple OS-specific (OSX and iOS) tool for debugging issues with reference-counted objects. In particular, it helps you track down objects that are over-released by recording a history of all -retain and -release messages sent to all objects created during execution.

When NSZombie is enabled, unbalanced -retain and -release messages cause the application to immediately halt and break into the debugger. This allows you to examine the problematic message to determine if there is an extraneous -release (or -autorelease), or a missing -retain.

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App crash NSDate message sent to deallocated instance?

When I launch my app it crashes and I'm getting this error : and after enabling Zombies object I get this error in log : -[__NSDate dealloc]: message sent to deallocated instance 0x16765ce0 Update : I used Profile (Cmd + I) and i choosed NSZombie…
YouSS
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Somehow my singleton properties are getting released

I have a singleton object called PoolManager that loads and saves some data in a plist. Throughout my program when something needs to know about my pool, it asks the [PoolManager sharedPoolManager] for it's properties. I have a single view that's…
Steve
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I've detected a zombie.. now what?

I have the following navigation flow in my app: View controller A is embedded in a navigation controller. A presents B modally. Right before user dismisses B, the navigation controller's view controllers are set to: [A, C] After B is dismissed, C is…
Ivan Lesko
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NSZombie not logging to console

I am getting an EXC_BAD_ACCESS error on one of my table views. I have tried adding the NSZombieEnabled key to the executables environment variables. It seems to be working in that the screen no longer crashes, but I do not get any messages from the…
Chris James
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Inconsistant NSZombie allocation log

I'm working on old code now imported into Xcode 7. My problem is I have a random crash when changing a master/detail view controller that is pretty basic. The crash happens in main() so, not really helpful, but it's a message sent to an released…
Yann Bizeul
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Object are becoming zombies

I've two variables that are becoming zombies. They are declared like this: @interface SyncPoolController : NSObject { NSString *lastUploadQueryTime; NSString *lastDownloadQueryTime; NSString *pendingPkId; NSDate *pendingTimeStamp; …
Rashad
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Analyzing NSZombie

I keep getting bad instruction or bad exception so I enabled NSZombieEnabled and the other vars needed, and I have no idea how to analyze the results. This is what was logged: ToDoWall(1634) malloc: recording malloc stacks to disk using standard…
Kurbz
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Swift - Model from Core Data release and exc bad access

I have EXC_BAD_ACCESS at this line: self.accountControl.baseInfo = base When I enabled NSZombies I get this error: -[CFString release]: message sent to deallocated instance 0x1478cbc0 I found out that my problem is here: override func…
Libor Zapletal
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NSZombieEnabled breaking working code?

I have the following method in UIImageManipulation.m: +(UIImage *)scaleImage:(UIImage *)source toSize:(CGSize)size { UIImage *scaledImage = nil; if (source != nil) { UIGraphicsBeginImageContext(size); [source…
Gordon Fontenot
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Instruments crashes at zombie

I am regularly experiencing EXC_BAD_ACCESS on the same line of code, leading me to believe there is a zombie, when I run the app on a device or on a simulator. In an attempt to debug this exception, I turned on "Zombie Objects" for the scheme and…
HGDev
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Why is my UILabel getting deallocated?

Im trying to track down the source of a crash. I've profiled the app to look for zombies and it appears to be related to updating the text in one of my UILabels. I don't think I am setting the text value improperly. Does this look right? This is…
Youngin
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Debugging EXC_BAD_ACCESS with NSZombie

I am getting a rather peculiar issue of EXC_BAD_ACCESS. In an inventory based app, when creating a receipt..the app works fine if the vehicle already exists in the database and crashes when a receipt with new vehicle is being viewed. I tried to run…
Gaurav Wadhwani
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EXC_BAD_ACCESS from Apple Subthread

All of a sudden, I receive this EXC_BAD_ACCESS and NSZombie isn't saying anything. Anyone have an effective way to debug and eliminate this issue?
Hedam
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how to fix over released objects

NSZombie detected that one of the objected is over released in my app and that is causing the app to crash every time when a button is pressed. However, after inspecting the source code of where the over release happens, I couldn't see any obvious…
forseqn
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EXC_BAD_ACCESS in Swift when adding a SKSpriteNode

I am creating a little game in Swift for OS X to practise but I encountered an error unkonwn to me. It appears when I try to create two new SKSpriteNodes: var battleBegan:Bool = false let beginButton = SKSpriteNode(imageNamed: "button") var…
P1kachu
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