linux-kernel - Re: Strange output on the console

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Message-ID: <878rtzwal7.fsf@jogness.linutronix.de>
Date:   Fri, 25 Feb 2022 10:43:40 +0106
From:   John Ogness <john.ogness@...utronix.de>
To:     Willy Tarreau <w@....eu>, David Laight <David.Laight@...LAB.COM>
Cc:     'Steven Rostedt' <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: Strange output on the console

Hi Steven,

On 2022-02-25, Willy Tarreau <w@....eu> wrote:
>> > And it always seems to happen right after:
>> > 
>> >   Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> > 
>> > Maybe this is a serial issue and not a printk one? :-/

Your first message says you attached a dmesg. Does this mean you dumped
the kernel log directly into the attached file? ...or was that a screen
capture in the attached file?

It is an important distinction because if garbage is landing in the
kernel buffer, it is not related to serial at all.

John