Question

I have received crash reports from iTunes connect. In “Most Frequent Crashes” table, there are several entities. I am wondering how apple classify several crash reports into one entity? Same reason? Can I assume they are the same root cause? And what does the hex number beside the app name stand for, e.g. 0xe7f96?

Answer 1

The algorithm Apple uses to group crashes is not public, so all you might get is speculation.

You cannot assume that crashes in one “group” have the same rout cause, e.g. if your app crashes because of memory leaks, you could have multiple in your app that could cause the app to crash at the same point. So it depends on the type of crash.

To understand the data that is shown in a crash report, read this Technical Note TN2123: CrashReporter from Apple.

[The hex number] is the program counter address within the frame of the
stack trace. For frame 0 this is typically the address of the
instruction that caused the exception. For higher frames this is the
return address for that frame. That is, for frame N it points to the
next instruction that will execute when the function referenced by
frame N – 1 returns.