Re: kernel: page fault trap, code = 0

[Stephen Marley <stephen_(_dot_)_marley_(_at_)_catwoman_(_dot_)_cl-is_(_dot_)_com>]

On Thu, Feb 10, 2005 at 12:10:06PM -0700, Ben Goren wrote:
> On 2005 Feb 10, at 10:36 AM, Fafa Diliha Romanova wrote:
> > Anyhow, I do not know how to mount a floppy
> > and cat 'ps', 'trace' and 'dmesg' into it, using
> > that prompt. I don't have any special equipment
> > like terminals to do the job.
> 
> Easiest is with a serial console. All you need is a null modem cable 
> (which you should be able to get from any computer shop for only a buck 
> or two more than a regular modem cable) and a second computer. Full 
> instructions are here:
> 
>      http://www.openbsd.org/faq/faq7.html#SerCon
> 
> Hardest, but cheapest and guaranteed to always work...is pencil and 
> paper.
> 

I've has crashes on machines where the output of ddb's ps and trace was
available after reboot (ddb> boot reboot) in the dmesg.  I'm not
entirely clear whether this behaviour was a design feature or just some
quirk of the hardware.

Kind regards,
Stephen Marley

-- 
Network Systems Engineer, Datacentre Operations
Campbell Lee Internet Solutions <http://cl-is.com>