[quote='905656022, Tom-chen, /thread/845979?answerId=905656022#905656022, /profile/Tom-chen'] I have provided the complete crash JSON file. [/quote] No you haven’t. That’s a human reasonable crash report (.crash) and I was looking for JSON one (.ips). It’s also truncated )-: However, it’ll probably do. Your crashing thread backtrace looks like this: Thread 0 Crashed: 0 CoreFoundation … __CFRunLoopServiceMachPort.cold.1 + 64 1 CoreFoundation … __CFRunLoopServiceMachPort + 416 2 CoreFoundation … __CFRunLoopRun + 1188 3 CoreFoundation … _CFRunLoopRunSpecificWithOptions + 532 4 GraphicsServices … GSEventRunModal + 120 5 UIKitCore … -[UIApplication _run] + 796 6 UIKitCore … UIApplicationMain + 332 7 KMMVideo … 0x104304000 + 5218892 8 dyld … start + 6928 Frame 0 and the crash type itself (EXC_BREAKPOINT) strongly suggest that you’ve hit this line. That is, CFRunLoop got back an unexpected error from Mach messaging and trapped. The crash report also includes this: Application Specific Information: (ipc/rcv) invalid
Topic:
App & System Services
SubTopic:
Processes & Concurrency