Hello, in between I managed to work around the problem. With cifs 1.34 compiled into 2.6.11 (and probably 2.6.12, too), a acceptable performance can be achieved with mount option "direct". For further plans and (hopefully) the final fix for the problem see: http://lists.samba.org/archive/linux-cifs-client/2005-September/000989.html http://lists.samba.org/archive/linux-cifs-client/2005-September/000991.html In between this bug should remain open. Martin