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

From: Masami Hiramatsu
Date: Wed Aug 01 2018 - 21:02:45 EST


On Fri, 27 Jul 2018 21:15:08 +0900
Masami Hiramatsu <mhiramat@xxxxxxxxxx> 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@xxxxxxxxxx>