Subject: Re: port-sparc/7860: crashme will rapidly panic NetBSD/sparc 1.4
To: Paul Kranenburg <pk@cs.few.eur.nl>
From: David Brownlee <abs@anim.dreamworks.com>
List: port-sparc
Date: 06/27/1999 23:29:12
On Sun, 27 Jun 1999, Paul Kranenburg wrote:

> Historically, unhandled user generated traps would end up in panic()
> on the sparc.  Last time I was near that code, I made that behaviour
> optional (but left the default as was) by introducing the patchable
> variable `ignore_bogus_traps'.
> 
> At that time, I ran `crashme' continuously for a week on a Sparc Classic,
> with no ill effects except slowing down my kernel builds.
> 
> I guess it's time to invert the default value of `ignore_bogus_traps'.
> 
> The sun4 crash problem on the other hand, is very real and appears
> to be caused by pointers going astray. I'm looking into this.
	
	Well.. I have good news and bad news. With ignore_bogus_traps set to
	1 it passes that crashme area without problem, but later on the
	machine hangs hard (L1+A no effect). 

	The necessary magic to kill it this time was:
		crashme +2000.0 816 100

		David/absolute

	"Its just another ultimate battle of good against evil..."