linux-kernel - Re: 2.6.20: Modular fb and logo crash

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Message-ID: <45CB4C01.2060709@tmr.com>
Date:	Thu, 08 Feb 2007 11:12:49 -0500
From:	Bill Davidsen <davidsen@....com>
To:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
CC:	Linux Frame Buffer Device Development 
	<linux-fbdev-devel@...ts.sourceforge.net>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.20: Modular fb and logo crash

Geert Uytterhoeven wrote:
> If you don't have any builtin frame buffer device driver and insmod a frame
> buffer device driver, the logo code will still try to display the logo (which
> is __initdata). This may cause a crash.
> 
> Originally (2.1.x, is it that long ago I used a modular frame buffer device
> driver?), this didn't happen because initmem_freed (which no longer exists) was
> checked. BTW, there's still a comment in drivers/video/console/fbcon.c about
> this.
> 
> Anyone else who's seeing this? Anyone with an idea how to fix this?
> Moving the logo code to userspace is not considered a solution ;-)

I used to see this when loading from a booted system, but not when the 
modules were in initrd. Don't know if that offers you any help or not. 
Clearly you want the fb built-in so you see the penguins, anyway. ;-D

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

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