Quoting Ralf Baechle <ralf@linux-mips.org>: Ralf wrote: > There is no requirement at all for a system to have physical memory in > KSEG0 - the Octane to my knowledge one example. What every sane system > needs to have in KSEG0 are exception handlers. Of course they could also > reside in a ROM but that's insane so you should expect at least a few kb > of RAM at physical address zero. At this point I wouldn't put anything past SGI, but it's good to know my suspicions about kseg0 are confirmed. > > Due to the Octane's funky address space layout and the current tools > limitations the kernel will have to run in CKSEG2 instead of KSEG0 ... > > Ralf /nod. Onward and upward. Thanks, Erik -- Erik J. Green erik@greendragon.org