ath: truncated-ip

Hello
Maybe there is problem with ath
I have point-to-point uplink with ath 5213 based cards
with

  6.0-CURRENT #2: Thu Jun 30 02:39:34 CEST 2005
  hw.ath.hal.version: 0.9.14.9
  ifconfig_ath0="10.27.64.78/30 ssid HA2BH media OFDM/24Mbps mode 11a up"
   bhillz-F# ifconfig ath0 list ap
   SSID            BSSID              CHAN RATE  S:N   INT CAPS
   HA2BH           00:90:4b:ca:33:52  149   54M 32:0   100 E

and on the other side:
   5.4-STABLE #6: Sat May 28 11:01:07 CEST 2005
   hw.ath.hal.version: 0.9.6.3
   ifconfig_ath0="10.27.64.77/30 ssid HA2BH channel 149 media autoselect
mode 11a mediaopt hostap up"
   habr# wicontrol ath0 -l | grep signal
        Quality/Signal/Noise [signal]:  [ 0 / 34 / 0 ]


The problem is, that "client" side seems to be sendig corrupted data
(tcpdump above), I tried to switch client<->hostap cards (in config) but
the same thing again.
I also tried CURRENT <-> CURRENT  machines, it do the same thing
I have more interfaces (fxp, wi, vlan) on these boxes and OSPF runs
there without any problem, so I think it could be ath specific problem ?

Does anybody have any idea where could be the problem ?
If will anybody be interested in, I can provide more info.
Thanks
Jiri

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
habr# tcpdump -i ath0 proto ospf
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ath0, link-type EN10MB (Ethernet), capture size 96 bytes
18:01:48.994769 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 44
18:01:49.013819 IP truncated-ip - 11200 bytes missing! 10.27.64.78 >
OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 11244
18:01:49.398200 IP 10.27.64.77 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 48
18:01:58.995047 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 44
18:01:59.048889 IP truncated-ip - 11200 bytes missing! 10.27.64.78 >
OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 11244
18:01:59.408431 IP 10.27.64.77 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 48
18:02:08.995264 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 44
18:02:09.038394 IP truncated-ip - 11200 bytes missing! 10.27.64.78 >
OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 11244
18:02:09.418535 IP 10.27.64.77 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 48
18:02:18.995734 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 44
18:02:19.016646 IP truncated-ip - 11200 bytes missing! 10.27.64.78 >
OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 11244
18:02:19.428675 IP 10.27.64.77 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 48
18:02:28.996688 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 44
18:02:29.051713 IP truncated-ip - 11200 bytes missing! 10.27.64.78 >
OSPF-ALL.MCAST.NET: OSPFv2, Hello (1), length: 11244
18:02:29.438828 IP 10.27.64.77 > OSPF-ALL.MCAST.NET: OSPFv2, Hello (1),
length: 48

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bhillz-F# tcpdump -i ath0 proto ospf
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ath0, link-type EN10MB (Ethernet), capture size 96 bytes
18:01:49.389444 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello,
length: 44
18:01:59.390520 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello,
length: 44
18:02:09.391534 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello,
length: 44
18:02:19.392793 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello,
length: 44
18:02:29.394546 IP 10.27.64.78 > OSPF-ALL.MCAST.NET: OSPFv2, Hello,
length: 44