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2014/10/15 ¤U¤È 10:16:11
iphone Programming Glossary: zombieHow to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode to use NSzombie in xcode duplicate I have an app that is crashing with no error tracing. I can see part of what is going on if I debug.. is crashing with no error tracing. I can see part of what is going on if I debug but can't figure out which object is zombie ing . Does anybody know how to enable NSZombie in Xcode 4 xcode nszombie share improve this question Environment variables.. I debug but can't figure out which object is zombie ing . Does anybody know how to enable NSZombie in Xcode 4 xcode nszombie share improve this question Environment variables are now part of the scheme . If you edit the scheme you want to turn..
SEGV_ACCERR calling [[NSNotificationCenter defaultCenter] removeObserver:self] in dealloc http://stackoverflow.com/questions/12901031/segv-accerr-calling-nsnotificationcenter-defaultcenter-removeobserverself-i out the crash log was misleading. I was able to eventually get it to happen while connected to the debugger with zombie objects enabled. The actual source of the crash was a loader object that had this controller as it's delegate tried to call.. tool because it requires the app to be run in the simulator. So the next best thing is to go to Edit Scheme and enable zombie objects there then build and run on device and wait for it to crash. You don't get the full retain release history that..
Break on EXC_BAD_ACCESS in XCode? http://stackoverflow.com/questions/1622079/break-on-exc-bad-access-in-xcode with. Further trial and error debugging and I found that an NSMutableArray I have a property for on my class was a zombie. I went into the init function for the class and here's the code I was using if self super init NSMutableArray array NSMutableArray.. track these down is use NSZombieEnabled . This works by never actually releasing an object but by wrapping it up as a zombie and setting a flag inside it that says it normally would have been released. This way if you try to access it again it still..
http://stackoverflow.com/questions/4168327/what-is-nszombie saying to set NSZombieEnabled to true while debugging. What is NSZombie Is it a framework A setting iphone ios nszombie share improve this question It's a memory debugging aid. Specifically when you set NSZombieEnabled then whenever an.. reaches retain count 0 rather than begin deallocated it morphs itself into an NSZombie instance. Whenever such a zombie receives a message it logs a warning rather than crashing or behaving in an unpredictable way. As such you can debug subtle..
Understanding when to call retain on an object? http://stackoverflow.com/questions/4450644/understanding-when-to-call-retain-on-an-object you won't be owner but the program that created it would still be therefore the objects is stil alive somewhere leak zombie Please I'm confused. iphone cocoa touch memory management share improve this question All your answers are found in..
Occasional errors when running OCUnit application test suite on device http://stackoverflow.com/questions/4668894/occasional-errors-when-running-ocunit-application-test-suite-on-device
http://stackoverflow.com/questions/4956413/reg-modifying-layer-that-is-being-finalized-calayer-frame-message-sen thus touching the underlying CALayer . In your case it looks like you're overreleasing a UIView somewhere due to the zombie message. The modifying layer that is being finalized is just a side effect of that because at some point you'd be updating..
confusion about retain and release issues http://stackoverflow.com/questions/5932904/confusion-about-retain-and-release-issues release this leads NOT to a crash as expected In the first snippet everything occurs as I expect it also the crash zombie ... at the second release message. In the second one unexpected things happen. Calling any message after init e.g. layer.opaque..
If I release, I get bad access, if I retain, I leak http://stackoverflow.com/questions/6006028/if-i-release-i-get-bad-access-if-i-retain-i-leak _fetchedResultsController release _managedObjectContext release super dealloc seems the culprit was according to the zombie instruments NSFetchedResultsController private methods _managedObjectContextDidChange Edit s Finally took the time to figure..
NSMutableString appendString generates SIGABRT Error http://stackoverflow.com/questions/6414711/nsmutablestring-appendstring-generates-sigabrt-error been over released and coincidentally an NSArray instance was allocated at the same place in memory. You could use zombie detection to debug this. Alternatively you might be corrupting memory somewhere. Or maybe there is another assignment to..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown declaring consumed parameters and if the method consumes the parameter you'll probably eventually send a message to a zombie and crash. There are ways to work around this with bridged casting but really it'd be better to simply use the IMP and function..
-[CALayer release]: message sent to deallocated instance http://stackoverflow.com/questions/7402171/calayer-release-message-sent-to-deallocated-instance answers or suggestions people can provide would be greatly appreciated I am truly stumped. iphone calayer dealloc nszombie share improve this question Profile your application in the simulator with 'Zombies' Instrument. Run your app for a.. address 0x158b3c00 .. it will take you to the object retain release history for the object that was over released the zombie . If you highlight the line above where the retain count went to 1 and open View Extended detail it should point you to..
What are the advantages and disadvantages of using ARC? [closed] http://stackoverflow.com/questions/7888568/what-are-the-advantages-and-disadvantages-of-using-arc on your optimizations settings as one example a program which works perfectly in a debug build may introduce a leak or zombie in release. Do you recommend ARC or manual reference counting MRC for a new project Personally I'll be sticking with MRC..
How to safely shut down a loading UIWebView in viewWillDisappear? http://stackoverflow.com/questions/789984/how-to-safely-shut-down-a-loading-uiwebview-in-viewwilldisappear iphone cocoa touch uiwebview share improve this question A variation on this should fix both the leaking and zombie issues void loadRequest NSURLRequest request self retain if webView isLoading webView stopLoading webView loadRequest request..
How to debug “message sent to deallocated instance” in Xcode4? http://stackoverflow.com/questions/8298946/how-to-debug-message-sent-to-deallocated-instance-in-xcode4 Hit Command I to profile the app and select the Zombies instrument you must be running on the simulator . If you get a zombie you can display the entire memory history each retain release for that object which is immensely helpful in tracking down..
Why is object not dealloc'ed when using ARC + NSZombieEnabled http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled 10537635 . EDIT #2 clarification on a good answer First I'm an experienced iOS developer and I fully understand ARC zombie objects etc. If I'm missing something of course I appreciate any illumination. Second it is true that a workaround for this.. that a good answer doesn't exist as this may be a bug in XCode. thanks all iphone ios automatic ref counting nszombieenabled share improve this question Turns out I've written some serious nonsense If zombies worked like I originally.. automatic ref counting nszombieenabled share improve this question Turns out I've written some serious nonsense If zombies worked like I originally wrote turning on zombies would directly lead to innumerable false positives... There is some isa..
Crash when using gesture recognizers in StoryBoard http://stackoverflow.com/questions/9035826/crash-when-using-gesture-recognizers-in-storyboard __NSCFString which is obviously the private implementation class of NSString . Make sure you have tried running with zombies enabled. A zombie can easily cause an unrecognized selector error. If it's not a zombie put a breakpoint on NSObject doesNotRecognizeSelector.. is obviously the private implementation class of NSString . Make sure you have tried running with zombies enabled. A zombie can easily cause an unrecognized selector error. If it's not a zombie put a breakpoint on NSObject doesNotRecognizeSelector.. you have tried running with zombies enabled. A zombie can easily cause an unrecognized selector error. If it's not a zombie put a breakpoint on NSObject doesNotRecognizeSelector . When the breakpoint is hit you may be able to figure out the problem..
http://stackoverflow.com/questions/10876874/how-to-track-crash-in-ios5
http://stackoverflow.com/questions/11426933/kern-invalid-address EXC_BAD_ACCESS type of code which relates to accessing deallocated memory. In order to find this you need to enable NSZombie objects. Press Option Command R and select the Diagnostics tab. Finally click Enable Zombie Objects . This should make the.. this you need to enable NSZombie objects. Press Option Command R and select the Diagnostics tab. Finally click Enable Zombie Objects . This should make the compiler stop on the line of code that is causing this crash. Most likely you have released..
How to use NSzombie in xcode? [duplicate] http://stackoverflow.com/questions/1211923/how-to-use-nszombie-in-xcode of what is going on if I debug but can't figure out which object is zombie ing . Does anybody know how to enable NSZombie in Xcode 4 xcode nszombie share improve this question Environment variables are now part of the scheme . If you edit.. Edit Scheme go to the Run Foo.app stage in the left panel and the Arguments tab on the right. You can then add NSZombieEnabled to the Environment Variables section and set the value to YES as you could in Xcode 3. In Xcode 4.1 and above there's..
http://stackoverflow.com/questions/2012205/nszombieenabled-does-not-work does not work When I set NSZombieEnabled Yes nothing is written to the console. How can I fix this Or can you advise.. does not work When I set NSZombieEnabled Yes nothing is written to the console. How can I fix this Or can you advise me any other tools for an EXC_BAD_ACCESS.. typical reason for this in a non GC'd objective c application is messaging an object after deallocation something that Zombie Mode detects this particular crash can happen any number of other ways as demonstrated . Since your application is crashing..
http://stackoverflow.com/questions/4956413/reg-modifying-layer-that-is-being-finalized-calayer-frame-message-sen #20 0x0039e42e in UIApplicationMain #21 0x00001fd0 in main at main.m 14 And Following is the Instrument`s output for NSZombie object. This points to UIKit # Category Event Type RefCt Timestamp Address Size Responsible Library Responsible Caller 0.. Library Responsible Caller 0 CALayer Malloc 1 25304068864 0x10837840 48 UIKit UIView _createLayerWithFrame 1 CALayer Zombie 1 99780847872 0x10837840 0 UIKit UIView Geometry frame Nothing point to the code. Has any one faced this kind of issue If..
http://stackoverflow.com/questions/7214175/xcode-malloc-error Thank you iphone objective c ios xcode share improve this question The Instruments Tool provides a way to find Zombies. To find the Zombie which causes your app to crash select Product Profile in XCode 4. A new window will open where you.. objective c ios xcode share improve this question The Instruments Tool provides a way to find Zombies. To find the Zombie which causes your app to crash select Product Profile in XCode 4. A new window will open where you have to choose Zombies.. which causes your app to crash select Product Profile in XCode 4. A new window will open where you have to choose Zombies . Now click Profile in the bottom right corner of the window. If you now send a message to a freed object it will show..
How to debug “message sent to deallocated instance” in Xcode4? http://stackoverflow.com/questions/8298946/how-to-debug-message-sent-to-deallocated-instance-in-xcode4 to debug &ldquo message sent to deallocated instance&rdquo in Xcode4 I pressed ALT CMD R and activated NSZombieEnabled in Arguments Environment Variables. Additionally I activated it in Diagnostics Memory Management Enable Zombie Objects... in Arguments Environment Variables. Additionally I activated it in Diagnostics Memory Management Enable Zombie Objects. However when I built and run at some point my app crashes giving me this useless message in the console CALayer.. 1 simply shows me this Everything is system owned and there's not a single line related to my app. So obviously NSZombiesEnabled doesn't work as it did in Xcode 3 where it halted on the dead object. Is there any way to figure out which CALayer..
Why is object not dealloc'ed when using ARC + NSZombieEnabled http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled is object not dealloc'ed when using ARC NSZombieEnabled I converted my app to ARC and noticed that an object alloc'ed in one of my view controllers was not being dealloc'ed.. was not being dealloc'ed when that view controller was dealloc'ed. It took a while to figure out why. I have Enable Zombie Objects on for my project while debugging and this turned out to be the cause. Consider the following app logic 1 Users.. when it is dealloc'ed. 4 User dismisses SecondaryViewController to return to RootViewController . With Enable Zombie Objects turned off the above works fine all objects are deallocated. With Enable Zombie Objects on ActionsController is..
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