Re: [PATCH -tip v10 0/9] kprobes: Kprobes jump optimization support
From: Masami Hiramatsu
Date: Tue Feb 23 2010 - 17:29:07 EST
Steven Rostedt wrote:
> On Thu, 2010-02-18 at 17:12 -0500, Masami Hiramatsu wrote:
>
>> This version of patch series uses text_poke_smp() which
>> update kernel text by stop_machine(). That is 'officially'
>> supported on Intel's processors. text_poke_smp() can't
>> be used for modifying NMI code,
>
> But it can be made to use with NMI code. If you look at what I did to
> allow ftrace to modify NMI code, it may be able to do the same thing.
Yeah, I know. But basically, kprobes doesn't support probing NMI.
Maybe, it's possibly the next step. :)
Thank you,
--
Masami Hiramatsu
e-mail: mhiramat@xxxxxxxxxx
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