Subject: Re: Misc HWDIRECT fixes
To: David A. Gatwood <marsmail@globegate.utm.edu>
From: Benoit MARTEL <magus@cs.mcgill.ca>
List: port-mac68k
Date: 02/01/1998 16:26:05
On Thu, 29 Jan 1998, David A. Gatwood wrote:

> On Thu, 29 Jan 1998, Benoit MARTEL wrote:
> >
> > The rest of the email should still be correct. I can reproduce the bootup
> > hangs and crashes. It only seems that I sometimes get a live debugger but 
> > other times it is frozen.
> 
> Is the lack of adb in the debugger WRT a IIsi?  I've not been successful
> w/ adb in the debugger at all on a IIsi (I've had a couple of minor
> glitches...).  This is with the first of the -current GENERIC sbc kernels.

I'm using a IIvx. I often get a frozen debugger when I hit the switch. 
About as often, I get a debugger and I can do a "trace" but then it 
freezes after giving me the trace. Sometimes, (rarely), I get a debugger 
that works fine and I can do as many commands as I want without freeze.

When the debugger freezes, I've never worried about it since 
system is usually hosed when I hit the switch and I am happy to get a 
trace when I can. Your question makes me wonder, could it be a bug that 
makes the debugger freezes like that?

I tried hitting the switch when the system is working just fine (I tried 
during boot and also in single user after boot). Even in this "non-hosed" 
situation, I get the debugger but it freezes after a few commands.

Could somebody make light on this?

Ben.


PS: I'm using the 1.3 distrib kernel.

-----------------------------------------------------------------
"Because user errors often produce unpredictable results, the user
should try to avoid them."

IBM MVS/XA System Programming Library.