linux-kernel - Re: Strange output on the console

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Message-ID: <CAAq0SUkUAMyCoLt=n9X7+QH93zZ00ZpXNjG-gv7xUzL3YGtaPQ@mail.gmail.com>
Date:   Sat, 26 Feb 2022 08:49:45 -0300
From:   Wander Costa <wcosta@...hat.com>
To:     Sergey Senozhatsky <senozhatsky@...omium.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Petr Mladek <pmladek@...e.com>,
        John Ogness <john.ogness@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Wander Lairson Costa <wander@...hat.com>,
        Willy Tarreau <w@....eu>,
        David Laight <David.Laight@...lab.com>
Subject: Re: Strange output on the console

Hi Steve and Sergey,

Could you please tell the serial controllers in your hardware?

On Fri, Feb 25, 2022 at 11:21 PM Sergey Senozhatsky
<senozhatsky@...omium.org> wrote:
>
> On (22/02/25 08:42), Steven Rostedt wrote:
> > On Fri, 25 Feb 2022 08:32:09 -0500
> > Steven Rostedt <rostedt@...dmis.org> wrote:
> >
> > > On Fri, 25 Feb 2022 14:07:00 +0900
> > > Sergey Senozhatsky <senozhatsky@...omium.org> wrote:
> > >
> > > > > Steven, did you notice this recently?
> > > > > May I perhaps suggest git bisect? (sorry)
> > > >
> > > > On the off chance - do you have this revert in your kernel?
> > > >
> > > > commit 6a7b9f002eca6788d346c16a6ff0c218b41f8d1d
> > > > Author: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > > > Date:   Wed Jan 26 14:33:58 2022 +0100
> > > >
> > > >     Revert "tty: serial: Use fifo in 8250 console driver"
> > > >
> > > >     This reverts commit 5021d709b31b8a14317998a33cbc78be0de9ab30.
> > > >
> > > >     The patch is still a bit buggy, and this breaks some other hardware
> > > >     types.  It needs to be resubmitted in a non-buggy way, and make sure the
> > > >     other hardware types also continue to work properly.
> > >
> > > My tree does not have this.
> > >
> > > I just applied it and I'm building now. I'll let you know if this fixes the
> > > issue or not.
> >
> > Mystery solved. Thanks Sergey!
>
> Awesome!
>