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Date:   Wed, 10 Feb 2021 18:54:11 +0200
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc:     Steven Rostedt <rostedt@goodmis.org>,
        Timur Tabi <timur@kernel.org>, Petr Mladek <pmladek@suse.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Matthew Wilcox <willy@infradead.org>,
        akpm@linux-foundation.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        roman.fietze@magna.com, Kees Cook <keescook@chromium.org>,
        John Ogness <john.ogness@linutronix.de>,
        akinobu.mita@gmail.com, glider@google.com,
        Andrey Konovalov <andreyknvl@google.com>,
        Marco Elver <elver@google.com>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Pavel Machek <pavel@ucw.cz>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH 0/3][RESEND] add support for never printing hashed
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On Thu, Feb 11, 2021 at 01:39:41AM +0900, Tetsuo Handa wrote:
> On 2021/02/11 1:18, Steven Rostedt wrote:
> > The point of this exercise is to be able to debug the *same* kernel that
> > someone is having issues with. And this is to facilitate that debugging.
> 
> That's too difficult to use. If a problem is not reproducible, we will have
> no choice but always specify "never hash pointers" command line option. If a
> problem is reproducible, we can rebuild that kernel with "never hash pointers"
> config option turned on.

I think what you are targeting is something like dynamic debug approach where
you can choose which prints to enable/disable and what enable/disable in them.

In that case you specifically apply a command line option and enable only files
/ lines in the files.

-- 
With Best Regards,
Andy Shevchenko