linux-kernel - Re: [PATCH] printk: Add loglevel for "do not print to consoles".

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Message-ID: <344199f1-639b-ee93-2388-57b0549641f9@i-love.sakura.ne.jp>
Date:   Wed, 6 May 2020 18:45:13 +0900
From:   Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
To:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Petr Mladek <pmladek@...e.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
        Dmitry Safonov <dima@...sta.com>,
        Michal Hocko <mhocko@...e.com>,
        Yafang Shao <laoar.shao@...il.com>
Subject: Re: [PATCH] printk: Add loglevel for "do not print to consoles".

On 2020/04/28 20:33, Tetsuo Handa wrote:
> On 2020/04/27 15:21, Sergey Senozhatsky wrote:
>>> KERN_NO_CONSOLES is for type of messages where "saved for later analysis" is
>>> important but "printed for immediate notification" is not important.
>>> In other words, KERN_NO_CONSOLES is NOT for dying messages where "printed for
>>> immediate notification" is important.
>>
>> per-console loglevel is a user configurable parameter.
>> KERN_NO_CONSOLES is a hard-coded policy.
> 
> But given that whether to use KERN_NO_CONSOLES is configurable via e.g. sysctl,
> KERN_NO_CONSOLES will become a user configurable parameter. What's still wrong?
> 

Any problems remaining?