My app some times crashes at start-up. In stack-trace only messages from built-in frameworks. An excerpt from a crash log:
OS Version: iPhone OS 3.1.3 (7E18)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x000e6000
Crashed Thread: 0
Thread 0 Crashed:
0 CoreGraphics 0x339305d8 argb32_image_mark_RGB32 + 704
1 CoreGraphics 0x338dbcd4 argb32_image + 1640
2 libRIP.A.dylib 0x320d99f0 ripl_Mark
3 libRIP.A.dylib 0x320db3ac ripl_BltImage
4 libRIP.A.dylib 0x320cc2a0 ripc_RenderImage
5 libRIP.A.dylib 0x320d5238 ripc_DrawImage
6 CoreGraphics 0x338d7da4 CGContextDelegateDrawImage + 80
7 CoreGraphics 0x338d7d14 CGContextDrawImage + 364
8 UIKit 0x324ee68c compositeCGImageRefInRect
9 UIKit 0x324ee564 -[UIImage(UIImageDeprecated) compositeToRect:fromRect:operation:fraction:]
10 UIKit 0x32556f44 -[UINavigationBar drawBackButtonBackgroundInRect:withStyle:pressed:]
11 UIKit 0x32556b00 -[UINavigationItemButtonView drawRect:]
12 UIKit 0x324ecbc4 -[UIView(CALayerDelegate) drawLayer:inContext:]
13 QuartzCore 0x311cacfc -[CALayer drawInContext:]
14 QuartzCore 0x311cab00 backing_callback
15 QuartzCore 0x311ca388 CABackingStoreUpdate
16 QuartzCore 0x311c978c -[CALayer _display]
17 QuartzCore 0x311c941c -[CALayer display]
18 QuartzCore 0x311c9368 CALayerDisplayIfNeeded
19 QuartzCore 0x311c8848 CA::Context::commit_transaction(CA::Transaction*)
20 QuartzCore 0x311c846c CA::Transaction::commit()
21 QuartzCore 0x311c8318 +[CATransaction flush]
22 UIKit 0x324f5e94 -[UIApplication _reportAppLaunchFinished]
23 UIKit 0x324a7a80 -[UIApplication _runWithURL:sourceBundleID:]
24 UIKit 0x324f8df8 -[UIApplication handleEvent:withNewEvent:]
25 UIKit 0x324f8634 -[UIApplication sendEvent:]
26 UIKit 0x324f808c _UIApplicationHandleEvent
27 GraphicsServices 0x335067dc PurpleEventCallback
28 CoreFoundation 0x323f5524 CFRunLoopRunSpecific
29 CoreFoundation 0x323f4c18 CFRunLoopRunInMode
30 UIKit 0x324a6c00 -[UIApplication _run]
31 UIKit 0x324a5228 UIApplicationMain
32 Journaler 0x000029ac main (main.m:14)
33 Journaler 0x00002948 start + 44
File main.m is simple as possible:
#import <UIKit/UIKit.h>
int main(int argc, char *argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
int retVal = UIApplicationMain(argc, argv, nil, nil); // line 14
[pool release];
return retVal;
}
What my cause the app to crash?
