Samba share logs in/out

When using Samba to transfer files, it times out every minute or so, waits a minute or so and logs back in and starts transfering again. Sambas log constantly loops with
ie@EeePc701:/var/log/samba$ cat log.192.168.11.9
[2009/01/17 17:38:51, 1] smbd/service.c:make_connection_snum(1194)
  192.168.11.9 (192.168.11.9) connect to service lacie initially as user mie (uid=1000, gid=1000) (pid 18123)
[2009/01/17 17:39:55, 1] smbd/service.c:close_cnum(1405)
  192.168.11.9 (192.168.11.9) closed connection to service lacie
and var/log/messages errors with
Jan 18 03:44:36 EeePc701 kernel: [112967.808184] txd read ptr: 0x183c
Jan 18 03:44:36 EeePc701 kernel: [112967.808189] txs-behind:0x000105ea
Jan 18 03:44:36 EeePc701 kernel: [112967.808194] txs-before:0x000101e4
Jan 18 03:44:38 EeePc701 kernel: [112969.624154] eth0: txs packet size do not coinsist with txd txd_:0x00000042, txs_:0x00050377!
Possibly related to bug https://bugs.launchpad.net/ubuntu/+source/linux-ubuntu-modules-2.6.22/+bug/147639