On Thu, Jun 28, 2001 at 08:16:27PM +0100, Matthew Theobalds wrote:
> Thanks very much for the interesting reading on the history of these 
> tools.

No problem.

> The only operating systems it has had on whilst in my possession are Mac 
> OS 7.5, Network Access Disk (don't recall what version of Mac OS that 
> one is), and various incarnations of NetBSD 1.5. The only systems to 
> cause this problem has been NetBSD 1.5 June 24 and June 16 sources. June 
> 24 was GENERIC kernel, June 16 was the GENERICSBC kernel.
> 
> It's therefore unlikely that it could be a hardware problem, though not 
> impossible. It's got fairly standard components, Apple IIcx, 8MB RAM. 
> Internal SCSI Hard Disk. Nubus Ethernet card, standard Display card.
> 
> I really can't think of anything which is exceptionally strange about it.

Hrm. I don't recall Mac II's power subsystems being exactly what I'd
call reliable. But it doesn't seem like any kind of weird response
from the soft power stuff should make the kernel panic... or was it
just hang?

Is it possible to get a crash dump of one of these hangs? It'd help
to include that in the PR... ah, I see you already sent it. Reply
including gnats-bugs@gnats.netbsd.org to append to the PR. Your
reponse won't show up on the netbsd-bugs mailing list (unless you
include that address too), but it'll make it into the PR.

Oooo... ooo... Just read your PR and something occured to me. Wasn't
this around the date that Jason Thorpe's new SCSI tree was imported?
It's distinctly possible that this doesn't interact so well with
nubus-era mac's SCSI subsystem. That's worth investigating.

This is probably *not* a general power problem, but rather a
shutting-down-the-SCSI-bus problem, judging by the output in your PR.

> No doubt you thought:
> 
> 	"He couldn't have missed something -that- obvious, could he..? 
> Could he?!"

Um, actually, I thought "He ran MAKDEV with / as the working
directory," then didn't bother to reply till the next day, by which
time you'd already figured it out. ;^>

-- 
       ~ g r @ eclipsed.net