On Tue, 14 Aug 2007 18:06:46 +0200 Tobias Diedrich <[EMAIL PROTECTED]> wrote:
> Hello, > > I suspect I'm seeing a slow dst cache leakage on one of my servers. > The server in question (oni) regularly needs to be rebooted, because > it loses network connectivity. However, netconsole and syslog shows that the > machine is still running and the kernel complains about "dst cache > overflow". > > I have since installed a monitoring script, which stores the output of > both "ip route ls cache | fgrep cache | wc -l" and the 'entries' value > of /proc/net/stat/rt_cache (as suggested in > http://www.mail-archive.com/[EMAIL PROTECTED]/msg02107.html) > and produces a nice rrd graph: > > http://uguu.de/~ranma/route-month-oni.png > So entries is growing more or less constantly, while the number of > active routes (not visible on the graph due to being too small) is > relatively constant. > > Comparing this to another host running the exact same kernel: > http://uguu.de/~ranma/route-month-ari.png > Here cached_routes and entries barely differ at all. > > The funny thing is, both hosts are running the exact same kernel > and use more or less the same iptables rules. > > So I'm not sure what would cause the dst cache to leak only on host > oni? > Could you send the result of these commands on oni and ari ? ip route ls grep . /proc/sys/net/ipv4/route/* - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
