carp_iamatch filling up system log
Max Laier
max at love2party.net
Mon Nov 5 13:06:54 PST 2007
On Monday 05 November 2007, Mark Miles wrote:
> I am getting a lot of errors using the carpdev BETA patch against HEAD
> provided by Max a few days ago. I don't know if I should be concerned
> about them or if they are just informational. These are the main two
> carp/vlan devices causing errors, but it happens on others as well -
> at random times.
>
>
> carp_iamatch(vlan2, xx.xxx.xx.37, xx.xx.xxx.137, ...)
> not: carp2
> carp_iamatch(vlan6, xx.xxx.xx.6, xx.xx.xxx.169, ...)
> not: carp6
Ups ... left over debugging. I'll provide an updated patch in a bit. You
can also just grep for that printf and comment it out. Thanks for
testing!
> fxp1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> metric 0 mtu 1500
> options=4b<RXCSUM,TXCSUM,VLAN_MTU,POLLING>
> ether 00:02:b3:4d:0b:58
> media: Ethernet 100baseTX <full-duplex>
> status: active
>
> vlan2: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> metric 0 mtu 1500
> ether 00:02:b3:4d:0b:58
> media: Ethernet 100baseTX <full-duplex>
> status: active
> vlan: 2 parent interface: fxp1
>
> vlan6: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> metric 0 mtu 1500
> ether 00:02:b3:4d:0b:58
> media: Ethernet 100baseTX <full-duplex>
> status: active
> vlan: 6 parent interface: fxp1
>
> carp2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 ether 00:00:5e:00:01:02
> inet xx.xxx.xxx.137 netmask 0xfffffff8
> carp: BACKUP carpdev vlan2 vhid 2 advbase 1 advskew 200
>
> carp6: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 ether 00:00:5e:00:01:06
> inet xx.xx.xxx.169 netmask 0xfffffff8
> carp: BACKUP carpdev vlan6 vhid 6 advbase 1 advskew 200
>
> I also got this error when I had an IP on fxp0 and carp100 using
> carpdev fxp0:
>
> arp: xx.xxx.xx.34 is on fxp0 but got reply from 00:03:47:71:a8:b3 on
> carp100 carp_iamatch(fxp0, xx.xxx.xx.37, xx.xxx.xx.34, ...)
> arp: xx.xxx.xx.33 is on fxp0 but got reply from 00:0c:f1:bb:66:84 on
> carp100
I'll look into it. Looks like a too strict check for the carp case - i.e.
the code should ignore this condition on carp interfaces, but somehow my
check is wrong.
> Please advise, I am filling up message logs at the rate of every 3
> hours!!
>
> On a side note, this machine is serves vlan trunks which is why I
> needed carpdev in the first place (as to not waste more usable public
> ips with two gateway ips in a /29 that are silent just to run the one
> gateway needed), thus giving my customers 2 useable IP addresses.
> With carpdev I can give them 5. Currently, an OpenBSD 4.2-current box
> serves as the "MASTER" and I am using a FreeBSD 8.0-CURRENT box to
> serve as "BACKUP". When I rebooted the OpenBSD box, everything failed
> over as it should, but I got more carp_iamatch errors on almost every
> vlan/carp pair. Could the OpenBSD <-> FreeBSD differences in carp be
> causing these errors??
Neither are real errors, as far as I can tell ... I'll look into it in
more detail and provide an updated patch. For now you can just shut up
the printfs.
--
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