Another Netlink: File exists

[micah]

Hello,

I read the FAQ on the wiki, and every thread I could find on this list
to try and track down how to stop this message hitting my logs every 15
seconds (and filling them every few days), but I have had no luck.

I'm just doing bgp, no OSPF, my kernel protocol already is in 'learn'
mode, so I set the preference to 100000, but that didn't change
anything. I tried 'debug all;' and 'debug {routes};' in the kernel
protocol, but ended up only really getting anything from doing:

echo all
debug all all

which then showed me:
>>> kernel1: Scanning routing table
>>> kernel1: 0.0.0.0/0: [alien] seen
>>> kernel1: 1.0.0.0/24: seen
>>> kernel1: 1.0.4.0/24: seen
...
>>> Netlink: File exists
>>> Netlink: File exists
>>> Netlink: File exists

bird> show route 0.0.0.0/0
0.0.0.0/0          via 208.99.192.141 on eth3 [kernel1 08:44:51] * (10000)

I am adding that in my system's startup script, not via bird. Also, that
route should be filtered out, as I have the following filters:

function martians()
{
  return net ~ [ 169.254.0.0/16+, 192.168.0.0/16+, 10.0.0.0/8+, 172.24.0.0/13+, 172.25.0.0/16+, 172.26.0.0/16+, 
               172.27.0.0/16+, 172.28.0.0/16+, 172.29.0.0/16+, 172.30.0.0/16+, 172.31.0.0/16+,
               224.0.0.0/4+, 240.0.0.0/4+, 0.0.0.0/32-, 0.0.0.0/0{25,32}, 0.0.0.0/0{0,7}, 127.0.0.0/8+ ];

function rt_import_all(int asn)
{
  if martians() || local_network() then return false;
  if bgp_path.first != asn then return false;
  if bgp_path.len > 64 then return false;
  # not sure this works with multi-hop, so disabling
  # if bgp_next_hop != from then return false;
  return true;
}

filter bgp_in_cogent
{
        if ! rt_import_all(174) then reject;
        accept;
}

filter bgp_in_swiftco
{
        if ! rt_import_all(25700) then reject;
        accept;
}

I tried to run bird -d to get some debugging output, but it didn't
provide me with any (i'm using debian version 1.4.4-1~bpo70+1).

Finally, is there a way to use a more useful pager with birdc? If I do
'show routes' I cannot search with the existing pager, or do other
interesting things, like I can with 'less'.

Thanks for your help!
micah