linux-kernel - Re: kernel CI: printk loglevels in kernel boot logs?

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Message-ID: <20171122104255.b6qz4f7m2utaiwha@sirena.org.uk>
Date:   Wed, 22 Nov 2017 10:42:55 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     Fengguang Wu <fengguang.wu@...el.com>,
        Kevin Hilman <khilman@...libre.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: kernel CI: printk loglevels in kernel boot logs?

On Wed, Nov 22, 2017 at 02:26:30PM +0900, Sergey Senozhatsky wrote:

> so may be we can add "syslog" mode for console drivers and do print_prefix()
> in console_unlock() [unless have nr_ext_console_drivers]. if this is what
> you guys are talking about. (frankly, I have no idea if there are tools
> that parse output from serial consoles/net consoles and thus might get
> confused by extra <%u> in every message).

In this case the goal is actually to use this with tools parsing the
serial console output - it's in the context of kernelci where the boot
logs are most interesting when we fail to get to the point of being able
to look in /proc.  Kevin's initial proposal was to have a command line
option.

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