Re: [PATCH v3 1/n] perf/core: addressing 4x slowdown during per-process profiling of STREAM benchmark on Intel Xeon Phi

[Andi Kleen]

> One more:

It may help if you run with KASAN enabled. That often
finds problems earlier. 

Also could use ftrace and use ftrace_dump_on_oops to 
see the sequence (but that has a lot of overhead
and sometimes hides problems)

-Andi