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 09:56:43 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Hannes Reinecke <hare@...e.de>,
	Josh Boyer <jwboyer@...oraproject.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	"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>, Ray Strode <halfline@...il.com>
Subject: Re: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs
 attribute

On 02/21/2014 09:52 AM, Hannes Reinecke wrote:
> On 02/21/2014 03:48 PM, Josh Boyer wrote:
>> On Thu, Feb 20, 2014 at 6:52 PM, Greg Kroah-Hartman
>> <gregkh@...uxfoundation.org> wrote:
>>> 3.13-stable review patch.  If anyone has any objections, please let me know.
>>>
>>> ------------------
>>>
>>> From: Hannes Reinecke <hare@...e.de>
>>>
>>> commit d8a5dc3033af2fd6d16030d2ee4fbd073460fe54 upstream.
>>>
>>> The 'active' sysfs attribute should refer to the currently active tty
>>> devices the console is running on, not the currently active console.
>>>
>>> The console structure doesn't refer to any device in sysfs, only the tty
>>> the console is running on has.  So we need to print out the tty names in
>>> 'active', not the console names.
>>>
>>> This resolves an issue on s390 platforms in determining the correct
>>> console device to use.
>>
>> Just to be double sure this is seen, Ray points out that it breaks
>> current plymouth because the heuristic changed.  Hold off on this one?
>>
> Without this patch systemd won't present a login console for s390.
> I'd prefer fixing plymouth.

Not an option.

As I said before, the old interface should be left alone and
forked to present a new interface that systemd can use to
get what it expects.

Regards,
Peter Hurley

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