Ok, so heres the issue. I'm attempting to debug an app with instruments but every time i try to use the Leaks instrument Instruments crashes about 3 seconds into it. This only occurs when i try to use it with an actual device, it will run fine when its just attached to the simulator.
I have reinstalled Xcode and Instruments on 2 different computers, and am running the latest version. This isn't an issue with the app either because i have tried it with 2 other apps and the same thing happens. Also, i have tried this with multiple different devices and the same thing is happening.
Any suggestions?
I was just experiencing 100% reproducible crashes in Instruments (not very productive) that seem to have been fixed by rebuilding the spotlight index (sudo mdutil -E /), so that might be worth a try for anyone who can't get Instruments to run for more than a few seconds.
Before running you instruments, go to:
File->Recording Options->disable "Record reference counts"
来源：https://stackoverflow.com/questions/10926443/instruments-crashing-while-using-leaks-instrument