From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>,
peterz@infradead.org,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andrea Righi <righi.andrea@gmail.com>,
stable@vger.kernel.org
Subject: Re: [PATCH 6/9] kprobes: Prohibit probing on hardirq tracers
Date: Fri, 11 Jan 2019 23:21:01 +0900 [thread overview]
Message-ID: <20190111232101.572db64cd592c43f20efdf95@kernel.org> (raw)
In-Reply-To: <20190110121231.446b3396@gandalf.local.home>
On Thu, 10 Jan 2019 12:12:31 -0500
Steven Rostedt <rostedt@goodmis.org> wrote:
> On Thu, 10 Jan 2019 11:56:53 +0900
> Masami Hiramatsu <mhiramat@kernel.org> wrote:
>
> > Since kprobes breakpoint handling involves hardirq tracer,
> > probing these functions cause breakpoint recursion problem.
> >
> > Prohibit probing on those functions.
> >
> > Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
> > ---
> > kernel/trace/trace_irqsoff.c | 9 +++++++--
> > kernel/trace/trace_preemptirq.c | 5 +++++
> > 2 files changed, 12 insertions(+), 2 deletions(-)
> >
>
>
> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Thank you for your Ack!
>
> -- Steve
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2019-01-11 14:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 2:54 [PATCH 0/9] kprobes: Fix and improve blacklist symbols Masami Hiramatsu
2019-01-10 2:54 ` [PATCH 1/9] x86/kprobes: Prohibit probing on optprobe template code Masami Hiramatsu
2019-01-10 6:07 ` Greg KH
2019-01-10 14:57 ` Masami Hiramatsu
2019-01-10 17:10 ` Steven Rostedt
2019-01-11 0:52 ` Masami Hiramatsu
2019-01-10 2:54 ` [PATCH 2/9] x86/kprobes: Move trampoline code into RODATA Masami Hiramatsu
2019-01-10 2:55 ` [PATCH 3/9] x86/kprobes: Prohibit probing on functions before kprobe_int3_handler() Masami Hiramatsu
2019-01-10 2:55 ` [PATCH 4/9] x86/kprobes: Prohibit probing on IRQ handlers directly Masami Hiramatsu
2019-01-10 2:56 ` [PATCH 5/9] kprobes: Search non-suffixed symbol in blacklist Masami Hiramatsu
2019-01-10 2:56 ` [PATCH 6/9] kprobes: Prohibit probing on hardirq tracers Masami Hiramatsu
2019-01-10 17:12 ` Steven Rostedt
2019-01-11 14:21 ` Masami Hiramatsu [this message]
2019-01-10 2:57 ` [PATCH 7/9] kprobes: Prohibit probing on preempt_check debug functions Masami Hiramatsu
2019-01-10 2:57 ` [PATCH 8/9] kprobes: Prohibit probing on RCU debug routine Masami Hiramatsu
2019-01-10 2:58 ` [PATCH 9/9] kprobes: Prohibit probing on lockdep functions Masami Hiramatsu
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