[MPlayer-dev-eng] [PATCH] two trivial vbelib fixes

[Oleg I. Vdovikin]

>
> WTF?!?! mmap to 0x0 is NOT acceptable! This makes it so null pointer
> dereferences will not cause sig11, but instead overwrite the mmapped
> /dev/mem!!! Find some other way to make this work without mmapping to
> 0x0!
    If you take a closer look to the lrmi stuff you will notice, that's the
only way to use vm86. It's should have interrupt vectors and bios mmaped to
zero, otherwise video BIOS calls will not work. The patch submited just
clears other errors, and keeps other things (such as mmaping) intact.

    The only way to improve the original code is to include mmap/munmap to
every vm86 call. BTW, it's possible this memory should also be maped during
the calls to protected mode extensions. But the patch SHOULD be applied
anyway, cause it fixes other problems.

>
> Rich

Regards,
    Oleg.