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Date:	Mon, 16 Jun 2014 17:52:15 +0200
From:	Frederic Weisbecker <>
To:	Masami Hiramatsu <>
Cc:	Ingo Molnar <>, Borislav Petkov <>,
	Kees Cook <>,
	Jiri Kosina <>,
	Rusty Russell <>,,
	Steven Rostedt <>,,
	Andrew Morton <>,
	Seiji Aguchi <>,
	Ingo Molnar <>
Subject: Re: [PATCH -tip ] [Bugfix] x86/kprobes: Fix build errors and
 blacklist context_track_user

On Sat, Jun 14, 2014 at 06:47:12AM +0000, Masami Hiramatsu wrote:
> This reverts commit ecd50f714c421c759354632dd00f70c718c95b10
> since it causes build errors with CONFIG_CONTEXT_TRACKING and
> that has been made from misunderstandings; context_track_user_*()
> don't involve much in interrupt context, it just returns
> if in_interrupt() is true.
> Instead of changing the do_debug/int3(), this just adds
> context_track_user_*() to kprobes blacklist, since those are
> still can be called right before kprobes handles int3 and debug
> exceptions, and probing those will cause infinit loop.
> Signed-off-by: Masami Hiramatsu <>
> Reported-by: Frederic Weisbecker <>

Thanks a lot!

Acked-by: Frederic Weisbecker <>
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