linux-kernel - Re: [PATCH 11/25] selftests/ftrace: Improve kprobe on module testcase to load/unload module

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Message-Id: <20180802100240.a27b72abe375c5817d970a0c@kernel.org>
Date:   Thu, 2 Aug 2018 10:02:40 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/25] selftests/ftrace: Improve kprobe on module
 testcase to load/unload module

On Fri, 27 Jul 2018 21:15:08 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
> @@ -4,11 +4,18 @@
>  
>  [ -f kprobe_events ] || exit_unsupported # this is configurable
>  
> +rmmod trace-printk ||:
> +if ! modprobe trace-printk.ko ; then
> +  echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=
> +m"
> +  exit_unresolved;
> +fi
> +
> +MOD=trace_printk
> +FUNC=trace_printk_irq_work

Hmm, this caused a problem with CONFIG_KPROBE_EVENTS_ON_NOTRACE=n.
However, as far as I can see, the trace_printk_irq_work() is not
marked as notrace...

Anyway, I'll find another better module to test.

Thanks,


-- 
Masami Hiramatsu <mhiramat@...nel.org>