Re: [PATCH] svgalib error in mmap documentation

[Alan Cox]

> +If you want svgalib programs to run with kernel 2.4.0 or newer, svgalib
> +needs to be compiled without background support (BACKGROUND not defined in
> +Makefile.cfg). This is relevant to any svgalib version.
> +This is because svgalib uses mmap of /proc/mem to emulate vga's memory bank
> +switching when in background, and kernel 2.4.0 stopped supporting this feature.

2.4 has real support for shared mappings, so you can I suspect do it properly
now