Re: [Linux-fbdev-devel] ruby on pm3/i386

[Sven <lu...@dp...>]

On Fri, Sep 14, 2001 at 11:54:12AM +0200, Romain Dolbeau wrote:
> Sven wrote:
> 
> > BTW, could you send me diffs, or maybe have the pm3fb.c file available as a
> > standalone, yesterday's ruby died at build time in ksym.c.
> 
> Huh ? the current ruby is against 2.4.8, and I fixed the only typos
> that prevented it to build...
> 
> > Also, i am really curious of what happens on your box when you try it out ?
> > Apparently you don't even come that far ?
> 
> It crash to xmon very early, with pm3fb or with offb (I should
> try again offb maybe it's better now...)

Nope, it still is a problem with cmap ...

the culprit code is :

        cmap = &(l_fb_info->current_par->f_fb_info->cmap);
	> the cmap takes an 9x130 value here
        cmap->red = cmap->green = cmap->blue = cmap->transp = NULL;

	> well the kernel oops with unable to handle kernel NULL pointer
		dereference at virtual address 144 here
        cmap->len = 0; cmap->start = 0;
        fb_alloc_cmap(cmap, 16, 0);

So, i don't know, but i guess the cmap is not of the right type, or maybe you
should let the & away, or more simply the
l_fb_info->current_par->f_fb_info->cmap value is NULL. I guess it is this last
one that is the case, i did not test it though ...

Friendly,

Sven Luther