On Wednesday 06 July 2005 16:21, André Cruz wrote: > Hello. > I have a router running FC 2 with kernel 2.6.10-1.770_FC2. > > Yesterday my network went down and a lot of "dst cache overflow" > appeared in my console. I then increased > my /proc/sys/net/ipv4/route/max_size from 8192 to 16384 and my network > started to work again... > > The problem is that dst_cache keeps increasing: > [root@saf113 root]# cat /proc/slabinfo |grep ip_dst_ca > ip_dst_cache 9210 9210 256 15 1 : tunables 120 60 0 : slabdata 614 614 0 > > This way the problem will repeat itself... Is there a solution to this? > Is this a known bug? Yes it is a known bug, see http://oss.sgi.com/archives/netdev/2005-01/msg01367.html http://lists.linuxcoding.com/rhl/2005/msg21777.html The bug is fixed for vanilla 2.6.11 and AFAIK 2.6.11-1.7_FC3 was the first FC3-kernel that had it fixed. Flushing did not help for me, I had to monitor dst cache and reboot when cache was full. I had lots of udp fragments because of the IPsec VPN's, and for me those udp fragments were the reason (I think). Regards Kimmo Koivisto > > Thanks for the help. > André
