iPhone app crashes randomly on device while connecting to remote server?

[srinivask]

Hi All,

i am doing a web service application with following code for connection.its working great but some times its going to crash.

any one can help me why this is crashing.here i am attaching the Log and piece of code.

//LOG

Mon Jul 16 21:07:55 unknown MyApp[167] <Warning>: NVVC Dealloc
Mon Jul 16 21:08:23 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.company.MyApp[0xe271]) Bug: launchd_core_logic.c:2688 (24132):10
Mon Jul 16 21:08:23 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.company.MyApp[0xe271]) Working around 5020256. Assuming the job crashed.
Mon Jul 16 21:08:23 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:com.company.MyApp[0xe271]) Job appears to have crashed: Segmentation
fault
Mon Jul 16 21:08:23 unknown SpringBoard[29] <Warning>: Application 'MyApp' exited abnormally with signal 11: Segmentation fault
Mon Jul 16 21:09:04 unknown lockdownd[20] <Error>: (0x403000) handle_connection: Could not receive USB message #7 from Xcode. Killing connection
Mon Jul 16 22:00:39 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.apple.mobilemail[0x55fb]) Exited: Killed
Mon Jul 16 22:00:39 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.apple.mobilephone[0xa13c]) Exited: Killed
Mon Jul 16 22:00:39 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.MyApp.app[0x137]) Exited: Killed
Mon Jul 16 22:00:39 unknown com.apple.launchd[1] <Notice>: (com.apple.accessoryd) Exited: Killed
Mon Jul 16 22:00:41 unknown SpringBoard[29] <Warning>: Application 'Mail' exited abnormally with signal 9: Killed
Mon Jul 16 22:00:41 unknown SpringBoard[29] <Warning>: Memory level is not normal (15%). Delaying auto-relaunch of 'Mail' for 30 seconds. Mon Jul 16 22:00:41 unknown SpringBoard[29] <Warning>: Application 'app' exited abnormally with signal 9: Killed
Mon Jul 16 22:00:42 unknown SpringBoard[29] <Warning>: Application 'Phone' exited abnormally with signal 9: Killed




//Code

@try {

[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

NSUserDefaults *defaults2 = [NSUserDefaults standardUserDefaults];

NSString *string = [NSString stringWithFormat:URL];

NSURL *url = [NSURL URLWithString:string];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: url];
// NSURLRequest *request =[NSURLRequest requestWithURL:[NSURL URLWithString:synStr]];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];
[connection release];
if(label != nil){
progressView = [[ProgressView showHUDAddedTo:self.tabBarController.view animated:YES]retain];
progressView.labelText = label;
}

[request release];
}
@catch (NSException * e) {
}