How do we analyze SIGKILLs with no exception code?

Our app is consistently crashing during startup for a small portion of testers. The common thread among these crashes is that the devices are all iOS15.1 or higher, and the devices are 7th generation or higher. The exception type is EXC_CRASH (SIGKILL).

Apparently I'm supposed to receive exception codes that give further clues about the cause, but they're always 0x0000etc. I've attached a crashlog if anyone can derive helpful info from it. I see that there's an error toward the bottom of thread 0, but the search terms involved yield a ton of varying results. Where do I begin with addressing this?

Accepted Answer

The missing exception codes was a known issue that is now addressed — see this thread for the context on that.

For this crash, it's pretty clear to me that you're looking at a watchdog termination, so the missing exception code is 0x8badf00d — note from the timestamps the app has only been alive for 20 seconds. Since you're using Unity and their code was only in a very early state of launching when the watchdog launch time clock ran out, you should follow-up with their support.

How do we analyze SIGKILLs with no exception code?
 
 
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