I was investigating https://bugzilla.mozilla.org/show_bug.cgi?id=1291304 and decided to dig into this ominous top crasher since it wasn't clear that it all of the ~5000 devices were crashing because of springboard. Turns out, this crash in Xcode is a 'catch-all' for various types of crashes Xcode has a hard time sorting through. Investigating the crashpoint file for the crash, I found the following: Total devices: 5837 iOS 8.* crashes: 1524 iOS 9.* crashes: 3,519 iOS 10.* crashes: 4 There are a few specific crashes that are happening and I'll create new bugs for each one of those and keep this as a meta.