Messages in this thread | | | Date | Fri, 15 Nov 2013 13:28:33 +0100 | From | Peter Zijlstra <> | Subject | Re: perf/tracepoint: another fuzzer generated lockup |
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On Fri, Nov 15, 2013 at 10:16:18AM +0900, Masami Hiramatsu wrote: > Kprobes itself can detect nested call by using per-cpu current-running > kprobe pointer. And if it is nested, it just skips calling handlers. > Anyway, I don't recommend to probe inside the handlers, but yes, > you can trace perf-handler by ftrace B). I actually traced a kprobe-bug > by kprobe-tracer last night, that was amazing :)
Ah, ok, so that would avoid the worst problems. Good. Should we still mark the entire perf swevent path as __kprobes just to be sure?
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