[nycbug-talk] Random Box Reboots

[Mike Sawicki]

On Wed, Jul 27, 2005 at 12:48:34PM -0400, Charles Sprickman wrote:
> On Wed, 27 Jul 2005, Hans Zaunere wrote:
> 
> >I'm stuck on what could be causing this and how to troubleshoot it; the 
> >box has only mild load.  Any thoughts appreciated.
> 
> Just in case, I'd enable coredumps, maybe you'll get "lucky" and have 
> something to look at:
> 
> dumpdev="/dev/ad0s1b" in rc.conf (adjust to your swap partition)
> 
> Also make sure you've built a kernel with debug symbols:
> 
> makeoptions     DEBUG=-g        in kernel config
> 
> Lastly, for problematic hosts in the past I've put together a quick shell 
> script that runs a whole mess of stuff; a full ps, vmstat, netstat, etc. 
> and writes it to a logfile.  I call it out of cron every five minutes. 
> That way if something does happen and there's no coredump I can see if 
> anything odd was happening before the crash.
> 

I'd also advise you to stop using GENERIC on a production server.
Strip down the kernel to the bare minimum and make better use of 
modules.  This could be hardware related.. but if it hums along for
multiple months I'd be surprised at that.

You aren't using nullfs anywhere are you?

--
Mike Sawicki (fifi at HAX.ORG)