Why do i get exc bad access in cases when object is not nil?
- by DixieFlatline
I have an app that receives remote notifications. My view controller that is shown after push has a tableview. App crashes very randomly (1 in 20 tries) at line setting frame:
if (!myTableView) {
NSLog(@"self.myTableView is nil");
}
myTableView.frame=CGRectMake(0, 70, 320, 376);
This only happens when i open the app, then open some other apps and then receive the push notification. I guess it has something to do with memory. I use ARC (ios 5). The strange thing is that nslog is not displayed, so tableview is not nil.
Crash log:
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x522d580c
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x352b1f7e objc_msgSend + 22
1 Foundation 0x37dc174c NSKVOPendingNotificationCreate + 216
2 Foundation 0x37dc1652 NSKeyValuePushPendingNotificationPerThread + 62
3 Foundation 0x37db3744 NSKeyValueWillChange + 408
4 Foundation 0x37d8a848 -[NSObject(NSKeyValueObserverNotification) willChangeValueForKey:] + 176
5 Foundation 0x37e0ca14 _NSSetPointValueAndNotify + 76
6 UIKit 0x312af25a -[UIScrollView(Static) _adjustContentOffsetIfNecessary] + 1890
7 UIKit 0x312cca54 -[UIScrollView setFrame:] + 548
8 UIKit 0x312cc802 -[UITableView setFrame:] + 182
9 POViO 0x000913cc -[FeedVC viewWillAppear:] (FeedVC.m:303)
Dealloc is not called because it is not logged:
- (void)dealloc {
NSLog(@"dealloc");
}
