Re: Issue with booting NetBSD 8.0 on Macintosh SE/30

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

Hi,

This is probably due to a problem we observed for -current on 68040:
https://mail-index.netbsd.org/tech-kern/2018/10/17/msg024139.html
http://mail-index.netbsd.org/port-mac68k/2019/02/26/msg000762.html

Different kinds of panics, i.e., illegal instruction, FPU trap, or
MMU fault take place randomly depending on combinations of date of
kernel source, kernel configuration file, compiler version, and
compile options.

In my experiment, this kernel config file for -current
http://www.netbsd.org/~rin/Q840AV-20181017
gave me stable kernels working on my Quadra 840AV. Can you try to
customize your own kernel based on it?

Thanks,
rin

On 2019/03/14 5:19, Matt Nawrocki wrote:
> Greetings:
>
> I am having some difficulty getting sysinst working via the NetBSD Booter tool on classic MacOS. Here is a bit of background for context...
>
> System Specs:
> Macintosh SE/30 with stock 68030 CPU @ 16Mhz (no accelerator boards present)
> 128 MB RAM
> Asante PDS Ethernet card (10BASE-T)
> SD2SCSI adapter sporting an 8GB SD card partitioned four ways (for four 2GB HFS formatted "drives")
>
> The SD2SCSI adapter doesn't play nicely with the ncrscsi device driver (it hangs during drive detection), and I've tried the SBC variant as well as a custom compiled kernel that completely disables PDMA. Both of these options present me with an MMU fault trap and the kernel stack, followed by the debugger prompt which doesn't respond to any of my keystrokes, requiring a hard reset.
>
> https://i.ibb.co/7CZTHww/IMG-20190312-232326.jpg
>
> I have linked to a picture of my screen on the SE/30. Any idea as to what may be going on here?