iphone - Leak - GeneralBlock-3584

Question

When i try to check leaks of my iPhone App using Instruments, everything is just fine. Same App on actual real device shows this leak for a few times during the app launch. It is pretty non-deterministic and it happens in system libraries. I tried to google down the solution without a luck. Anyone experiencing the same problems? Anyone knows the solution?

I find interesting, that every of my leak in code will crash the app sooner or later. These GeneralBlock-3584 leaks keeps app perfectly stable. Might this be reason for AppStore rejection?

Thanx for any answer regarding this undocumented problem (Apple is silent unfortunately).

Answer 1

You have nothing to worry about, this is false positive from Instruments.
It has to do with freeing resources of the thread that has being terminated. They just hang around until next thread is done and cleans resources after the one which is terminated previously. Instruments take this for a 'leak', but it's a feature of pthreads implementation on the iOS which in perfect world would be handled differently. More on this on the Apple's dev forum here and here.