Re: [GIT PULL] tracing fixes

From: Ingo Molnar
Date: Sun Feb 14 2010 - 23:50:50 EST



* Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote:

> Hi Ingo,
>
> Could you push this commit too?
>
> 5ecaafdbf44b1ba400b746c60c401d54c7ee0863
> kprobes: Add mcount to the kprobes blacklist
>
> Since this bug can be easily reproduced with kprobe-tracer.

Ok, i've cherry-picked it into urgent.

I'm wondering, how complete is the kprobes blacklist? You can test it by
putting a probe on every single function in the system via something like:

for N in $(cut -d' ' -f3 /proc/kallsyms | cut -f1); do
perf probe $N
perf probe -d $N
done

(note: I havent tested it myself yet.)

Thanks,

Ingo
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