iSTGT error messages

[David N]

Jul 31 01:40:30 netserv1 istgt[13674]: Login from iqn.example.net
(10.1.20.15) on iqn.example.net:mail2disk1 LU1 (10.1.10.1:3260,1),
ISID=23d010000, TSIH=40, CID=0, HeaderDigest=off, DataDigest=off
Jul 31 03:10:23 netserv1 istgt[13674]:
istgt_iscsi.c:3338:istgt_iscsi_op_nopout: ***ERROR***
StatSN(460107/460117) error
Jul 31 03:10:23 netserv1 istgt[13674]:
istgt_iscsi.c:3762:istgt_iscsi_execute: ***ERROR*** iscsi_op_nopout()
failed
Jul 31 03:10:23 netserv1 istgt[13674]: istgt_iscsi.c:4088:worker:
***ERROR*** iscsi_execute() failed

iSTGT istgt-20090428
FreeBSD 7.2-R
iSCSI 10GB disk on FreeBSD

Open-iscsi 2.0.865-1ubuntu3.3 client

Does anyone have any idea what the errors mean? There are alot of
repeated messages in the log file. It will connect, then the error
will occur and it'll reconnect and so forth.

Regards
David N