netlink receive error No buffer space available (105)

I'm running 'ip x mon' on linux 2.6.26-rc4
and it stop with this message after printing
few lines like these:

[...]
Async event  (0x10)  replay update
     src ...
Async event  (0x10)  replay update
     src ...
netlink receive error No buffer space available (105)

This is my ip and kernel version:

root@Venus:~# ip -V
ip utility, iproute2-ss080417
root@Venus:~# uname -a
Linux Venus 2.6.26-rc4 #1 SMP PREEMPT Tue Jun 3 13:10:36 CEST 2008 i686
Intel(R) Core(TM)2 Duo CPU     T8100  @ 2.10GHz GenuineIntel GNU/Linux

The strange thing is that on my pc (which is
an old PIII with 512MB) this problem doesn't
happen. Any hints?
TIA