On Tue, 15 Sep 1998, Harald Koerfgen wrote:
> After experiencing these Bus Errors I tracked these down to the situation
> a) An interrupt has occured. Otherwise the interrupt handler wouldn't have
> b) The interrupt status in CP0_STATUS is 0 (zero)!
> c) The interrupt status register in the IOASIC shows a serial interrupt
DECstations indeed handle interrupts in there own particular way... Above
made me thinking and researching and I came down to the system support
register. What if that's still in the power up state? The only reference
in code I can find about it is in include/asm-mips/dec/kn02ba.h. Well a
grep at KN02BA_SSR_ADDR and 040100 in de kernel code tree the only DEC
relevant file that shows up is the aforementioned one.