[syslinux] Yukon NIC - again

[Geert Stappers]

Op 26-04-2007 om 08:51 schreef H. Peter Anvin:
> Lindgren Daniel wrote:
> > 
> > The fix IS to to use "disable enhanced PXE".
> > This card does not follow fully the PXE specification.
> > So we have to call PXE code in "real mode" (like do the bios)
> > instead of "protected mode".
> > 
> 
> But PXELINUX *does* call PXE in real mode.
> 
> My personal guess is that the Yukon scribbles in areas of high memory
> it isn't supposed to.


Could pxelinux running with debug option enable this?


Another approach:

Add two functions to PXElinux:

 - one function is overwriting high memory with 0x55
 - the other function reports addresses in high memory that don't
   contain 0x55

Could that prove unsupposed high memory usage?


HtH
GSt