Re: panic on dual processor UltraSPARC-IIIi

[Michael <macallan%netbsd.org@localhost>]

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Hello,
On Jan 14, 2010, at 8:55 PM, Chris Ross wrote:

> On Jan 14, 2010, at 18:08, Bert Kiers wrote:
> > cpu0: shutting down
> > rebooting
> >
> > How do you get into debugger to enter "bt" on sparc64?
>
>  For the most part, you should likely build a kernel that's  
> configured to drop into ddb on panic.  If you need it to reboot  
> without a human, then it's not good, but...
>
>  Apologies for not knowing which kernel options you need to use off  
> of the top of my head.  Just wanted to offer the advice sooner  
> rather than later.

To enter ddb on panic:
sysctl -w ddb.onpanic=1
And to automatically run bt in case keyboard access is hosed:
sysctl -w ddb.commandonenter=bt

/etc/sysctl.conf is your friend ;)

have fun
Michael

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