Subject: Re: Kernels hanging at ttyflags during boot
To: Henry B. Hotz <hotz@jpl.nasa.gov>
From: Bill Studenmund <wrstuden@loki.stanford.edu>
List: port-mac68k
Date: 03/25/1998 09:44:12
On Thu, 19 Mar 1998, Henry B. Hotz wrote:

> At 5:12 PM -0800 3/10/98, Bill Studenmund wrote:
> >Here's the patch to try and stop kernels from hanging when they go to set
> >ttyflags.
> 
> Well, I tried the patch.  The patch program didn't like your email (the
> @@'s specifically) so I applied it by hand.  (Some line feeds may have
> gotten scrambled in transit from Eudora to desktop to fetch to NetBSD.  Not
> sure where.)
> 
> Anyway I built a 1.3 kernel with the patch.  (A simple make after applying
> it should work, right?  It seemed to redo the right things.)  A copy of the
> config file and resulting kernel is in
> ftp://macbsd.jpl.nasa.gov/pub/users/hotz.  HOTZ#0 was without patch, HOTZ#1
> with.

I haven't been able to check the kernel, but you're right; a simple make
was fine.

> Result:  no apparent change.  Sorry.

Doh! Does it help for anyone else?

> Dave Huang has been looking at my other crashes and some of his own and
> speculates that the DMA may not be disabled during boot, just the DMA
> completion interrupt.  If there is a problem like that around then who
> knows what failures we should expect to see.

Ick. Then we will definitly loose. :-(

Take care,

Bill