linux-kernel - Re: [PATCH v3] kprobes: Disable Kprobe when ftrace arming fails

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Message-ID: <20150323085426.GB28965@gmail.com>
Date:	Mon, 23 Mar 2015 09:54:26 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Petr Mladek <pmladek@...e.cz>
Cc:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	"David S. Miller" <davem@...emloft.net>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
	Ananth NMavinakayanahalli <ananth@...ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...hat.com>, Jiri Kosina <jkosina@...e.cz>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] kprobes: Disable Kprobe when ftrace arming fails


* Petr Mladek <pmladek@...e.cz> wrote:

> arm_kprobe_ftrace() could fail, especially after introducing ftrace 
> IPMODIFY flag and LifePatching. But this situation is not properly 
> handled.

s/LifePatching/LivePatching?

Why not fix live patching to still allow kprobes that worked before?

Thanks,

	Ingo
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