Re: NetBSD-8.xx fails to boot on ultra 45

[Eduardo Horvath <eeh%NetBSD.org@localhost>]

On Thu, 7 Mar 2019, Martin Husemann wrote:

> The point of the exercise was to find out what uses so much kernel
> stack on U45. It is not the audio driver (at least not obviously),
> so something further down the call stack must be guilty.
> 
> Can you instead of the previous experiment "boot -c" and disable the
> audio driver in userconf? Maybe it is some other part of the audio subsystem.

That's what's going on?  Oh.  

Take a look at the clean window trap handler.  There's still some old 
debug code there to check the kernel stack redzone that someone disabled.  
If you reenable that code it should be really easy to find what's 
consuming kernel stack.

Eduardo