Subject: Re: sun3 versus netbsd-1.3 kernel sizes
To: None <port-sun3@NetBSD.ORG>
From: Chris. Rupnik <chrisr@hp817.speedware.com>
List: port-sun3
Date: 02/26/1998 15:30:23
> On Tue, 24 Feb 1998, Gordon W. Ross wrote:
> 
> > Does that mean I should pull stuff out of GENERIC until it can
> > fit into the 1MB region?  Or somehow add support for booting
> > kernels that use more than 1MB for the initial load?
> > 
> 	You mentioned that a stripped generic kernel would probably boot
> 	on a 3/50. Would it be feasible to have the bootloader detect
> 	a >1MB kernel on a 3/50 and not load the symbols? (With
> 	appropriate diagnostics)
> 
> 	The 3/50 user still has to end up using a smaller kernel, but it
> 	allows one set of install media to work for all...
> 
> > Note that Sun3 PROMs do not promise to make more than 1MB of
> > contiguous memory available, so supporting larger kernels will
> > require significant work in the boot programs and the kernel.
> > The rule: KVA = PA + KERNBASE would no longer be true in all
> > memory initially mapped for the kernel.  Messy...
> > 
> 	So >1MB kernels are a potential problem on all sun3 machines?
> 
>

Hi
 I have a working SUN3/60 with a stipped netbsd1.3 kernel
 of 836696. If someone needs one, email me a config file
 and i'll get it to you.


 Chris