linux-kernel - Re: consolechars switches tty since 8b92e87 vt: add an event interface

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Message-ID: <20091115170339.59528e49@lxorguk.ukuu.org.uk>
Date:	Sun, 15 Nov 2009 17:03:39 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Przemysław Pawełczyk 
	<przemyslaw@...elczyk.it>
Cc:	Alan Cox <alan@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: consolechars switches tty since 8b92e87 vt: add an event
 interface

> [ In Debian before the end of the S runlevel (boot) console-screen.sh
> is executed (it is not the last script though), where consolechars is
> used for loading console screen font for each tty. In my case it
> evaluates to:
> 
>     /usr/bin/consolechars --tty=/dev/ttyX -f lat0-sun16
> 
> Similarly consolechars is used in setupcon script invoked by
> console-setup (processed after console-screen.sh) to set a font chosen
> by user. ]
> 
> The problem is that since 8b92e87 running consolechars switches tty to
> the one provided with --tty option. Last commit I have tested,
> a9366e6, is still affected.

That is a suprise as the code shouldn't be changing the behaviour of any
application unless something happened to rely on the race it fixed. Even
then I wouldn't expect what you see.

What does an strace of that command look like so I can see what ioctls it
issues and in what order.

Alan
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