linux-kernel - Re: [PATCH v5 0/2] perf: add support for logging debug messages to file

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Date:   Tue, 22 Oct 2019 00:35:01 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Changbin Du <changbin.du@...il.com>
Cc:     Jiri Olsa <jolsa@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 0/2] perf: add support for logging debug messages to file

Hello,

On Fri, Oct 18, 2019 at 9:28 AM Changbin Du <changbin.du@...il.com> wrote:
>
> When in TUI mode, it is impossible to show all the debug messages to
> console. This make it hard to debug perf issues using debug messages.
> This patch adds support for logging debug messages to file to resolve
> this problem.

I thought I implemented a debug message view in TUI mode by saving
all the messages in a linked list.  But it seems not sent to the list and I
cannot find it now. :(

Anyway I understand your concerns and the changes look ok to me, so

Acked-by: Namhyung Kim <namhyung@...nel.org>

Thanks
Namhyung


>
> v5:
>   o doc default log path.
> v4:
>   o fix another segfault.
> v3:
>   o fix a segfault issue.
> v2:
>   o specific all debug options one time.
>
> Changbin Du (2):
>   perf: support multiple debug options separated by ','
>   perf: add support for logging debug messages to file
>
>  tools/perf/Documentation/perf.txt |  16 ++--
>  tools/perf/util/debug.c           | 124 ++++++++++++++++++++----------
>  2 files changed, 92 insertions(+), 48 deletions(-)
>
> --
> 2.20.1
>