Date: Fri, 24 Aug 2007 00:29:42 +0000 From: Kris Kennaway <kris@FreeBSD.org> To: Ovi <ovi@unixservers.us> Cc: freebsd-questions@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: Servers Crash every few days Message-ID: <20070824002942.GE88768@hub.freebsd.org> In-Reply-To: <46CC818E.3010704@unixservers.us> References: <20070822120020.1680516A4C2@hub.freebsd.org> <46cc34e9.18b38c0a.1a4b.ffff9abc@mx.google.com> <20070822142225.GA10722@rot26.obsecurity.org> <46CC818E.3010704@unixservers.us>
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On Wed, Aug 22, 2007 at 09:33:50PM +0300, Ovi wrote: > >Consult the developers handbook for tips on how to obtain sufficient > >debugging information to identify and debug a panic or hang. > > > >Kris > > > I had the same issue, kernel panic and server reboot after "tuning" to > high sysctl variable (like maxsockbuf, but others too) > but having only 1 GB of RAM. It's possible you tuned it incorrectly. > Another rebooting problem was caused by running tcpdump on high used router. > > Other problem can be caused by hardware problems (I had those too). > > I disabled once creation of coredump by kernel, and I had problem (with > 6.2), when an userland app crash, the kernel panicked because of that. > > Last, some userland apps. can cause kernel panic and reboot. Neither of those two things should happen. When you encounter panics, you need to report them. Kris
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