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Date: Fri, 09 Mar 2012 08:51:44 +1000
From: Da Rock <freebsd-questions@herveybayaustralia.com.au>
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Subject: Re: Capturing Information About PANIC
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On 03/09/12 01:45, Dean E. Weimer wrote:
> I am having problems with my system panicking and crashing during 
> Bacula backups.  Is there any way short of enabling full memory dumps 
> to log the output of the crash?  After a reboot there is no 
> information in the messages log, and dmesg generally only shows the 
> information since the reboot started.
You can enable all.log in syslog.conf (follow the instructions there); 
this will provide verbose logging of everything at all levels.

And you can enable dumpdev in rc.conf.

HTH