anyone recognize this panic?

[Kent Stewart]

On Sunday 26 February 2006 12:42, Kris Kennaway wrote:
> On Sun, Feb 26, 2006 at 12:39:22PM -0800, Kent Stewart wrote:
> > On Sunday 26 February 2006 12:29, Kris Kennaway wrote:
> > > On Sun, Feb 26, 2006 at 11:24:28AM -0800, Kent Stewart wrote:
> > > > > Unfortunately without a traceback the panic string is useless
> > > > > since it gives you no clue about how the system got into that
> > > > > state.  This kind of panic is often a secondary effect of
> > > > > some other problem.
> > > >
> > > > I can cause this to happen almost at will with a Netgear GA311.
> > > > It only happens at boot. It will reboot after the panic just
> > > > fine and, for me, it only happens repeatedly after I do a
> > > > restart boot from XP. It has never happened if I shut the
> > > > system down first. I have moved many GBs of distfiles and
> > > > packages with out causing a panic.
> > > >
> > > > I haven't found a way to cause a dmp when it panics. At least,
> > > > what I have read doesn't work. So, how can I get a dmp, which I
> > > > can provide a traceback?
> > >
> > > What happens when you 'call doadump' from DDB?
> >
> > I haven't be able to invoke the debugger at the boot panic and even
> > adding dumpdev to rc.comp doesn't produce a dump file. The /swap
> > and /var are large enough to dump memory.
> >
> > I also haven't added DDB to the kernel config. I guess I need to
> > first get my Digital Rebel, so, I can keep a copy and see what is
> > on the screen when it panics.
>
> Well, if you don't have DDB in your kernel config, you certainly
> won't be able to invoke it when it panics ;-)

hehehe - of course :)

One thing, the developer's handbook only talks about "option DDB" but 
that won't compile until you have added KDB.

Now, I got it to panic but it took 5 or 6 tries. "At will" must have 
heard his name and ran away :). However, when I try "call doadump" it 
says no dump device has been specified. I have dumpdev="AUTO" in 
rc.conf but I think this is happening far to early.

All is not lost because I think I have 3-6.3 MP images of the panic and 
the trace back. How can I get a dumpdev that early into the boot? This 
is turning into the pain I thought it would be :).

Kent

-- 
Kent Stewart
Richland, WA

http://www.soyandina.com/ "I am Andean project".
http://users.owt.com/kstewart/index.html