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From: Steven Rostedt <rostedt@goodmis.org>
To: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Kees Cook <keescook@chromium.org>,
	LKML <linux-kernel@vger.kernel.org>,
	x86@kernel.org, "Luis R. Rodriguez" <mcgrof@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] x86/ftrace: Make sure that ftrace trampolines are not RWX
Date: Thu, 25 May 2017 11:18:02 -0400	[thread overview]
Message-ID: <20170525111802.53105528@vmware.local.home> (raw)
In-Reply-To: <20170525193443.0a829e456d8c26102d18a435@kernel.org>

On Thu, 25 May 2017 19:34:43 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:


> OK, I've ensured that following command hits same BUG.
> 
> grep t /proc/kallsyms  | cut -f3 -d" " | grep -v .*\\..* | \
> head -n 256 | while read i; do echo p $i+5 ; done >
> tracing/kprobe_events
> 
> echo 1 > tracing/events/kprobes/enable 
> echo 0 > tracing/events/kprobes/enable
> echo > tracing/kprobe_events
> sleep 5

Hi Masami,

Can you add a selftest that checks this too?

Thanks!

-- Steve

> 
> I'll send a bugfix asap.
> 
> Thank,
> 

  reply	other threads:[~2017-05-25 15:18 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-24 13:47 Thomas Gleixner
2017-05-24 14:33 ` Masami Hiramatsu
2017-05-24 15:04 ` Steven Rostedt
2017-05-24 17:47 ` Steven Rostedt
2017-05-24 18:16   ` Luis R. Rodriguez
2017-05-24 18:53     ` Thomas Gleixner
2017-05-24 19:34       ` Luis R. Rodriguez
2017-05-24 19:13   ` Thomas Gleixner
2017-05-24 22:25     ` Steven Rostedt
2017-05-24 23:18       ` Luis R. Rodriguez
2017-05-25  6:25       ` Thomas Gleixner
2017-05-25  8:57         ` [PATCH V2] " Thomas Gleixner
2017-05-25 15:15           ` Steven Rostedt
2017-05-25 17:46           ` Luis R. Rodriguez
2017-05-25 19:51             ` Kees Cook
2017-05-26  7:03               ` Thomas Gleixner
2017-05-26  9:27                 ` Heiko Carstens
2017-05-26  9:56                   ` Thomas Gleixner
2017-05-26 11:40                   ` Michael Ellerman
2017-05-26  9:49               ` Masami Hiramatsu
2017-05-26 13:37           ` Steven Rostedt
2017-05-26 13:50             ` Thomas Gleixner
2017-05-26 13:58               ` Steven Rostedt
2017-05-25  9:09       ` [PATCH] " Masami Hiramatsu
2017-05-25 10:34         ` Masami Hiramatsu
2017-05-25 15:18           ` Steven Rostedt [this message]
2017-05-26  1:34             ` Masami Hiramatsu

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