I got a crash from Fabric,the stack is below:
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 6806634868 objc_release + 20
1 libsystem_blocks.dylib 6813456656 _Block_release + 256
2 libobjc.A.dylib 6806640420 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 564
3 CoreFoundation 6529519172 _CFAutoreleasePoolPop + 28
4 UIKit 6605817924 _wrapRunLoopWithAutoreleasePoolHandler + 76
5 CoreFoundation 6530394704 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
6 CoreFoundation 6530382300 __CFRunLoopDoObservers + 360
7 CoreFoundation 6530383292 __CFRunLoopRun + 836
8 CoreFoundation 6529519780 CFRunLoopRunSpecific + 396
9 GraphicsServices 6682260900 GSEventRunModal + 168
10 UIKit 6606283712 UIApplicationMain + 1488
11 Spec 4297532060 main (main.m:15)
12 libdyld.dylib 6813280776 start + 4
I don't know why it would be _Block_release after (anonymous namespace)::AutoreleasePoolPage::pop(void*). Is it possible that a block was added to autoreleasepool?if possible, why the block crashed at release and it not crashed at invoke?
Ok，I had resolve this bug.The reason for the crash was that I had hook the function objectAtIndex for NSMutableArray.And If user switch from background,the app would get a crash -[UIKeyboardLayoutStar release]: message sent to deallocated.
So remove the hook code will resolve this bug.
Related
We have encountered the crash : -[WKSyntheticTapGestureRecognizer setState:] in our app.I am also attaching crash report for the reference:
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x1540 objc_msgSend + 32
1 WebKit 0x4a6bd8 -[WKSyntheticTapGestureRecognizer setState:] + 100
2 UIKitCore 0x2bb320 -[UITapRecognizer tooSlow:] + 76
3 Foundation 0x365fc __NSFireDelayedPerform + 460
4 CoreFoundation 0xae318 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
5 CoreFoundation 0x32cf0 __CFRunLoopDoTimer + 1076
6 CoreFoundation 0x2d4ec __CFRunLoopDoTimers + 328
7 CoreFoundation 0xbd08 __CFRunLoopRun + 1944
8 CoreFoundation 0x1f468 CFRunLoopRunSpecific + 600
9 GraphicsServices 0x138c GSEventRunModal + 164
10 UIKitCore 0x51a088 -[UIApplication _run] + 1100
11 UIKitCore 0x298958 UIApplicationMain + 2092
12 Adoddle Field Plus 0x1238f0 main + 17 (main.mm:17)
13 ??? 0x10817daa4 (Missing)
KERN_INVALID_ADDRESS at 0x0000000000000010
Like WKSyntheticTapGesturestabilizer has been released and is still accessing its member variables
With following crash log stack. Can I say that App was in Foreground state when crash occurred. because I can see UIKit calls.. What should one look to identified various state of App. like Suspended / Background / Foreground
**
#0
Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x00000000f158936c
**
Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x3a72c626 objc_msgSend + 5
1 CoreFoundation 0x2feae16b +[__NSArrayI __new:::] + 58
2 CoreFoundation 0x2feab945 -[__NSPlaceholderArray initWithObjects:count:] + 172
3 CoreFoundation 0x2feb5341 +[NSArray arrayWithObjects:count:] + 44
4 CoreFoundation 0x2feeb1bb -[NSDictionary allKeys] + 174
5 UIKit 0x3292430f -[UITouchesEvent _cloneEvent] + 342
6 UIKit 0x32786df9 _UIGestureRecognizerUpdate + 5240
7 CoreFoundation 0x2ff3d255 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 20
8 CoreFoundation 0x2ff3abf9 __CFRunLoopDoObservers + 284
9 CoreFoundation 0x2ff3af3b __CFRunLoopRun + 730
10 CoreFoundation 0x2fea5ebf CFRunLoopRunSpecific + 522
11 CoreFoundation 0x2fea5ca3 CFRunLoopRunInMode + 106
12 GraphicsServices 0x34dab663 GSEventRunModal + 138
13 UIKit 0x327f214d UIApplicationMain + 1136
14 MyApp 0xff6bf main (main.m:16)
15 libdyld.dylib 0x3ac2fab7 start + 2
com.apple.main-thread is the main thread which loads up the UI of the ViewController.
Since the crash is on the main thread then the app is to be running in foreground.
I hope it helps.
I hope someone can help me with this issue.
I'm implementing Google Tag Manager in an iOS App. 99% works well, but some times App crashes with the following execptions in:
-[GAIReachabilityChecker reachabilityFlagsChanged:]
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x3426bae6 objc_msgSend + 5
1 SuppApp 0x001d3c11 -[GAIReachabilityChecker reachabilityFlagsChanged:] + 2481169
2 SystemConfiguration 0x26b1544d reachPerformAndUnlock + 256
3 CoreFoundation 0x22a0a827 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
4 CoreFoundation 0x22a0a417 __CFRunLoopDoSources0 + 454
5 CoreFoundation 0x22a0877f __CFRunLoopRun + 806
6 CoreFoundation 0x2295b1e9 CFRunLoopRunSpecific + 516
7 CoreFoundation 0x2295afdd CFRunLoopRunInMode + 108
8 GraphicsServices 0x2ba76af9 GSEventRunModal + 160
9 UIKit 0x26bc017d UIApplicationMain + 144
10 SuppApp 0x00061cef main (main.m:16)
11 libdyld.dylib 0x34989873 start + 2
-[GAIDefaultLogger info:]
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x34e8bac6 objc_msgSend + 5
1 SuppApp 0x0020fb3d -[GAIDefaultLogger info:] + 2149181
2 SuppApp 0x00219c11 -[GAIReachabilityChecker reachabilityFlagsChanged:] + 2190353
3 SystemConfiguration 0x27715431 reachPerformAndUnlock + 256
4 CoreFoundation 0x23658c3f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
5 CoreFoundation 0x2365882d __CFRunLoopDoSources0 + 452
6 CoreFoundation 0x23656b9b __CFRunLoopRun + 794
7 CoreFoundation 0x235aa249 CFRunLoopRunSpecific + 520
8 CoreFoundation 0x235aa035 CFRunLoopRunInMode + 108
9 GraphicsServices 0x2c661ad1 GSEventRunModal + 160
10 UIKit 0x277bf899 UIApplicationMain + 144
11 SuppApp 0x000a7cef main (main.m:16)
12 libdyld.dylib 0x355ca873 start + 2
Any idea?
Thanks
It is not your fault. This crash caused by google analytics library. And seems like not only you got these crashes:
https://code.google.com/p/analytics-issues/issues/detail?id=578
I have a problem with an app crashing for a few users, I have no idea whats causing it and all I got is this stacktrace from crashlytics:
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x0000000194e5016c objc_release + 12
1 learnchinese 0x00000001000a95a0 -[WGRLanguageLabel .cxx_destruct] (WGRLanguageLabel.m:34)
2 libobjc.A.dylib 0x0000000194e36b1c object_cxxDestructFromClass(objc_object*, objc_class*) + 148
3 libobjc.A.dylib 0x0000000194e43f38 objc_destructInstance + 92
4 libobjc.A.dylib 0x0000000194e43f90 object_dispose + 28
5 UIKit 0x0000000187f8771c -[UIResponder dealloc] + 116
6 UIKit 0x0000000187c3dc38 -[UIView dealloc] + 1000
7 learnchinese 0x00000001000a5460 -[WGRLanguageLabel dealloc] (WGRLanguageLabel.m:39)
8 CoreFoundation 0x00000001830a10f8 CFRelease + 524
9 CoreFoundation 0x00000001830ad6b8 -[__NSArrayM dealloc] + 152
10 libobjc.A.dylib 0x0000000194e51724 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 564
11 CoreFoundation 0x00000001830a4d14 _CFAutoreleasePoolPop + 28
12 UIKit 0x0000000187c34584 _wrapRunLoopWithAutoreleasePoolHandler + 76
13 CoreFoundation 0x000000018317bff0 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
14 CoreFoundation 0x0000000183178f7c __CFRunLoopDoObservers + 360
15 CoreFoundation 0x000000018317935c __CFRunLoopRun + 836
16 CoreFoundation 0x00000001830a4f74 CFRunLoopRunSpecific + 396
17 GraphicsServices 0x000000018cb076fc GSEventRunModal + 168
18 UIKit 0x0000000187ca6d94 UIApplicationMain + 1488
19 learnchinese 0x00000001001679ec main (main.m:13)
20 libdyld.dylib 0x00000001954e2a08 start + 4
It looks like WGRLanguageLabel has been released when auto release pool try to release it again.
Here is the dealloc method in WGRLanguageLabel:
#implementation WGRLanguageLabel
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
...
#end
I use Crashlytics to track crashes and I am seeing some crashes with the stack trace below:
Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0xf8560b1c
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x37a20b66 objc_msgSend + 5
1 CoreFoundation 0x2d5f8e8d CFRelease + 560
2 QuartzCore 0x2fad2965 CA::release_objects(X::List<void const*>*) + 16
3 QuartzCore 0x2fad7dcf -[CAAnimation dealloc] + 54
4 libobjc.A.dylib 0x37a30b0b objc_object::sidetable_release(bool) + 174
5 CoreFoundation 0x2d5f8e8d CFRelease + 560
6 QuartzCore 0x2fada419 CA::Layer::run_animation_callbacks(void*) + 240
7 libdispatch.dylib 0x37f0a0af _dispatch_client_callout + 22
8 libdispatch.dylib 0x37f0c9a9 _dispatch_main_queue_callback_4CF + 268
9 CoreFoundation 0x2d6935b1 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 8
10 CoreFoundation 0x2d691e7d __CFRunLoopRun + 1308
11 CoreFoundation 0x2d5fc471 CFRunLoopRunSpecific + 524
12 CoreFoundation 0x2d5fc253 CFRunLoopRunInMode + 106
13 GraphicsServices 0x323362eb GSEventRunModal + 138
14 UIKit 0x2feb1845 UIApplicationMain + 1136
It looks like CFRelease is being called on some object twice. The problem is I have no idea which animation is causing the crash. The logs aren't very helpful as the crash happens in different places. How do I go about debugging/reproducing this crash or at the very least logging something so that I know what object is being released twice.