From: David Coulson <david@davidcoulson.net>
To: "J. Simonetti" <jeroens@office.netland.nl>
Cc: netdev@oss.sgi.com
Subject: Re: 2.6.10 dst cache overflow
Date: Wed, 16 Feb 2005 08:44:02 -0500 [thread overview]
Message-ID: <42134E22.4030808@davidcoulson.net> (raw)
In-Reply-To: <1108550412.3799.81.camel@ts2.office.netland.nl>
J. Simonetti wrote:
> I have a linux (Fedora core 3) based router. I does approximately 50Mbps
> aggregated traffic. However once every week (approx) the router dies
> with 'kernel: dst cache overflow' messages flooding syslog. I have
> tracked it down to being an issue with the routing cache.
Funny this came up now - One of my core routers failed last night with
the identical problem. The route cache was set to 131k routes, although
I couldn't get a sh prompt on the box even once the switch ports were
down... Had to sysrq-b it.
I'm running 2.6.11-rc1-bk8 right now on those boxes. 20ish day uptime
until yesterday and handling around 12Mbit of traffic. 'route -Cn | wc
-l' right now shows around 29k routes cached. I cranked the route cache
up to 1m entries, but I figure that's probably excessive.
David
--
David J. Coulson
email: david@davidcoulson.net
web: http://www.davidcoulson.net/
phone: (216) 920-3100 / (216) 258-4942
next prev parent reply other threads:[~2005-02-16 13:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-16 10:40 2.6.10 dst cache overflow J. Simonetti
2005-02-16 13:44 ` David Coulson [this message]
2005-02-16 14:28 ` Robert Olsson
2005-02-16 15:11 ` David Coulson
2005-02-17 14:42 ` J. Simonetti
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