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Date: Thu, 3 Jan 2013 12:06:03 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Daniel J Blueman <daniel@quora.org>,
        Peter Jones <pjones@redhat.com>,
        "linux-fbdev@vger.kernel.org" <linux-fbdev@vger.kernel.org>,
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        Linux Kernel <linux-kernel@vger.kernel.org>,
        Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Subject: Re: 3.8-rc2: EFI framebuffer lock inversion...
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On Thu, 3 Jan 2013 11:40:47 -0800
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Thu, Jan 3, 2013 at 5:11 AM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> >
> > The fb layer locking was broken. I posted patches early December which
> > should have fixed the ones we know about. ('fb: Rework locking to fix
> > lock ordering on takeover').
> 
> That patch causes compile errors with "allmodconfig":
> 
>   ERROR: "do_take_over_console" [drivers/video/console/fbcon.ko] undefined!
>   make[1]: *** [__modpost] Error 1
>   make: *** [modules] Error 2
>   make: *** Waiting for unfinished jobs....
> 
> Hmm?

I have a couple of fixes against
fb-rework-locking-to-fix-lock-ordering-on-takeover.patch:

http://ozlabs.org/~akpm/mmots/broken-out/fb-rework-locking-to-fix-lock-ordering-on-takeover-fix.patch
http://ozlabs.org/~akpm/mmots/broken-out/fb-rework-locking-to-fix-lock-ordering-on-takeover-fix-2.patch

Florian has been busy for a month or two - I've been waiting for him to
reappear to consider this patch.