linux-kernel - Re: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs attribute

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Date:	Fri, 21 Feb 2014 17:18:02 -0500
From:	Ray Strode <halfline@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Josh Boyer <jwboyer@...oraproject.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	Lennart Poettering <lennart@...ttering.net>,
	Kay Sievers <kay@...y.org>, Jiri Slaby <jslaby@...e.cz>,
	David Herrmann <dh.herrmann@...il.com>,
	Werner Fink <werner@...e.de>, Hannes Reinecke <hare@...e.de>
Subject: Re: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs attribute

Hi,

On Fri, Feb 21, 2014 at 3:21 PM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> Ray, Josh, can I get some more information about this?  Is this broken
> in Linus's tree?  Or did I get the backport wrong here?
I don't think it's a problem with the backport specifically. To be
honest, i'm not even 100% sure it is that patch. It was just the only
patch that touched that code recently so it seemed likely.  I didn't
do builds to check for sure.

> What is the value of the file before and after this patch?
"tty0" in the past and "tty1" now

> And what is plymouth doing with this file value, it was incorrect
> before, what was it using the value for?
See the other (3.11) thread for my initial message, but basically
plymouth had code something like this pseudocode:

/* disable splash if there are serial consoles */
if (!contents_of_file_equals("/sys/class/tty/console/active", "tty0")) {
        disable_splash_and_force_verbose_messages();
}

since the file started saying tty1 that code started disabling the
splash for everyone in rawhide.
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