Re: NetBSD-HEAD amd64 refuses to build

[Paul Goyette <paul%whooppee.com@localhost>]

On Sun, 29 Dec 2013, Thomas Mueller wrote:

> > > > Just to ask the obvious: did you try without the -c, and if so, what
> > > > happened?
>
> > > Sure I tried without -c, went into the debugger prompt.
>
> > At point in the boot process did you end up in the debugger? (What was
> > on the screen?) Did a backtrace "bt" give any clues?
>
> > Cheers,
>
> > Patrick
>
> Basically, I'm lost with the debugger, and the best I can do is type
> "reboot".

As Patrick suggested, please try typing "bt" in the debugger, to get a 
back-trace.

> Is there any documentation?

Yes - see "man 4 ddb"

> But I don't think the debugger could really help me.

It certainly won't help if you don't try, and don't listen to other 
people who are trying to help you.

> I remember in the boot process getting past athn0, so that was
> detected apparently satisfactorily.
>
> I have packages built for amd64 but nothing that survives for
> NetBSD-current i386, and I don't want to restart from scratch building
> packages for amd64.

If you can't get the kernel running and stable, you are a long ways away 
from having to think about building packages.

> I remember building modular-xorg from pkgsrc, but startx failed on
> inability to find display.  This also happens with OpenBSD 5.4 Live
> USB from liveusb-openbsd.sourceforge.net which was supposed to have
> been already configured and ready to go.
>
> There needs to be a way to single-step through the boot process;
> otherwise, boot messages whiz past too fast to be readable, and I
> still don't know any way to capture these messages to a file when boot
> falls short.

Try using a serial console and capturing the output.

The messages are also stored in the kernel's message buffer, where the 
debugger can access them.

And, if you were to type "reboot 0x100" you could force a crash dump.


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