erroneous "Netlink: File exists" ?

[Ondrej Zajicek]

On Mon, May 27, 2013 at 02:58:20PM +0200, Aragon Gouveia wrote:
> Hi Ondrej,
>
> On 27/05/2013 10:11, Ondrej Zajicek wrote:
>> It seems that OSPF routes are exported to the kernel (although it would
>> be a good idea to verify that by 'ip route list' from shell), but they
>
> Yes, all the OSPF routes do appear in 'ip route list'.
>
>
>> It seems that some routes could be detected during scan (the ones that
>> was defined as static routes in BIRD). But you tried routes with 'drop'
>> target, perhaps you should try to define static routes with the same
>> 'via' like ones from OSPF. Dees the problem manifest with them?
>
> Static routes with the same 'via' as one of the problematic OSPF routes  
> seem to cause a Netlink error when Bird starts up, but it doesn't repeat  
> every 20 seconds like the OSPF routes.  The static routes appear in 'ip  
> route list' and in 'show route'.  Config and log here:

Well, the netlink errors are here, they are just rate-limited:

27-05-2013 14:51:55 <TRACE> kernel1: 172.18.102.224/28: reinstalling
27-05-2013 14:51:55 <WARN> Netlink: File exists
27-05-2013 14:51:55 <TRACE> kernel1: 172.18.102.240/28: reinstalling
27-05-2013 14:51:55 <WARN> Netlink: File exists
27-05-2013 14:51:55 <TRACE> kernel1: 172.18.128.0/22: reinstalling
27-05-2013 14:51:55 <WARN> Netlink: File exists
27-05-2013 14:51:55 <WARN> ... 
		    ^^^ ratelimiting starts ^^^
27-05-2013 14:51:55 <TRACE> kernel1: 172.18.100.0/24: reinstalling
27-05-2013 14:51:55 <TRACE> kernel1: 172.18.101.0/24: reinstalling
27-05-2013 14:51:55 <TRACE> kernel1: 172.18.102.64/28: reinstalling

>
> http://pastebin.com/LW7e73vR
>
>
>> What is your kernel version?
>
> Linux wugpi 3.6.11+ #456 PREEMPT Mon May 20 17:42:15 BST 2013 armv6l  
> GNU/Linux
>
>
>> What is your output of 'show interfaces' and 'ip addr list'?

This seems OK.

Could you try BIRD with the first attached patch fix-6to4.patch and if it does
not help, also with the second one update-log.patch? That would generate
log messages that would probably show where the problem is.

-- 
Elen sila lumenn' omentielvo

Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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