Xen users - Aug 2014 - Xen 4.4 with OpenvSwitch 2.3.0 - unable to add nic devices

Hello Everybody,

after upgrading from OpenvSwitch 2.1.2 to (today released) 2.3.0 i cannot start
VM's calling the "vif-openvswitch" script anymore and libxl throws
the following error:

libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus:
/etc/xen/scripts/vif-openvswitch online [-1] died due to fatal signal Killed
libxl: error: libxl_create.c:1226:domcreate_attach_vtpms: unable to add nic
devices
libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus:
/etc/xen/scripts/vif-openvswitch offline [-1] died due to fatal signal Killed

The System is running on Xen 4.4.0 with Debian 7 (Wheezy) and Linux 3.14 as
Dom0. With OpenvSwitch 2.1.3 the setup is working fine.

Cheers,
S.