Subject: Re: port-i386/4830: NE2000 ethernet board interrupt trouble
To: None <netbsd-bugs@NetBSD.ORG>
From: Matthias Scheler <>
List: netbsd-bugs
Date: 01/16/1998 22:14:19
In article <>,
	Jason Thorpe <> writes:
> Well, I agree that it _is_ a bug that he has pointed out.

So that bug can occur on a system running with correct hardware
settings, too?

> When I got my first ppro here at work, I found a number of timing bugs that
> were caused by "unbounded" delay loops, ...

I agree that this kind of bugs exist. But reading his bug report I had
the impression that his fix was kludge to give his poor overstressed
hardware time to recover. The 337 MHz indicates that he's not only
overclocking the CPU but the system bus so that any kind of failures
of the I/O hardware are a logical consequence. I really would like to
know if the bug can be reproduced on a system without overclocked bus

> A delay in that loop is appropriate.

Can't it cause reduced throughput on slow systems?

Matthias Scheler