Subject: Re: Problems with current kernels on RiscPC
To: Mark Brinicombe <mark@causality.com>
From: Mike Pumford <mpumford@black-star.demon.co.uk>
List: port-arm32
Date: 08/25/1998 08:23:04
On Mon, 24 Aug 1998, Mark Brinicombe wrote:

> On Mon, 24 Aug 1998, Mike Pumford wrote:
> 
> > init subsystems:stacks vectors undefined pmap panic: Branch to never-never land (zero)..... we're dead
> > 
> > boot: howto=00000100 curproc=f016e3e0
> > splmasks & ipl masks
> > 
> > If I enable ddb the panic tries to enter ddb but the kernel repeatedly
> > reports that the undefined instruction used to enter the debugger is 
> > undefined instead of entering ddb.
> Hi,
>   I have just noticed this problem. This appears to have been caused be a
> recent change somewhere (The last RPC kernel I built just over a week ago
> worked fine). I'm looking into the problem. It appears that for some
> currently unknown reason the return from pmap_bootstrap() is going via the
> reset vetor ;-(
> 
Thanks for the confirmation. It's not just me then. Is there anything I
can do to help track this down?

Mike