how to capture freebsd 6.3 kernel panics

Manolis Kiagias sonicy at
Fri Feb 1 02:54:45 PST 2008

no at wrote:
> hi,
> since i migrated from 6.2-REL to 6.3-REL i got several
> panics when copying much data from one volume to another.
> because of the copy-job taking several hours, i don't
> get a realistic chance to CATCH the stupid panic and
> see what's going on (or at least get an idea of).
> this is really frustrating me!
> is there a way to avoid the auto-reboot?
> is there a way to save the panic to disk?
> btw, there's no swap partition i could use as dump device.
> cheers...
I recently had a system that would not dump to the swap partition for 
one reason or the other.
I used an external USB hard disk, and it dumped there with no problems.
With the current sizes of cheap usb flash drives, even that is probably 
an option.
You may wish to explore this solution.


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