Re: writing OOPS/panic info to nvram?

[Alan Cox]

On Thu, 2002-09-05 at 00:34, Paul Mackerras wrote:
> IDE was relatively straightforward since you can do basic block I/O
> with just the ATA-1 or ATA-2 registers and command set and PIO.  In
> contrast, I believe SCSI defeated him. :)

You have to reset and retune the interface/controller registers as well,
otherwise bad things can happen. Rusty will be happy to know that next
generation SATA drops the PIO interface for a demented PIO via DMA setup
8)