linux-kernel - Re: [BUGFIX PATCH 0/3] perf/probe: Fix available line bugs

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Date:   Fri, 25 Oct 2019 08:22:49 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [BUGFIX PATCH 0/3] perf/probe: Fix available line bugs

On Thu, 24 Oct 2019 17:23:27 -0300
Arnaldo Carvalho de Melo <acme@...nel.org> wrote:


> But why can't I probe this thing again?
> 
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:0
> Probe point 'clear_tasks_mm_cpumask' not found.
>   Error: Failed to add events.
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:1
> Failed to get entry address of clear_tasks_mm_cpumask
>   Error: Failed to add events.
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:2
> Failed to get entry address of clear_tasks_mm_cpumask
>   Error: Failed to add events.
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:11
> Failed to get entry address of clear_tasks_mm_cpumask
>   Error: Failed to add events.
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:12
> Failed to get entry address of clear_tasks_mm_cpumask
>   Error: Failed to add events.
> [root@...co ~]# perf probe clear_tasks_mm_cpumask:13
> Failed to get entry address of clear_tasks_mm_cpumask
>   Error: Failed to add events.
> root@...co ~]#

Oops, it's a verification error in convert_to_trace_point().
I'll fix it too!

Thank you,


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