The configuration is a Supermicro X9DBL-3F motherboard with 2x Intel Xeon E5-2403 Cpu's.
In the Bios the settings under
Advanced \ Chipset Configuration \ North Bridge \ Integrated IO Configuration \ Intel(R) VT-d
is enabled.
After the installation of XenServer 7 the server boot's, the XenServer boot menu shows and after a couple of seconds it hangs at a blank screen.
Restarting and selecting
XenServer in Safe Mode
in the XenServer boot menu and than log info is shown and stop's with the message
Panic on CPU 0:
Couldn't enable IOMMU and iommu=required/force
The RAID controller of the motherboard is not used, but the installed Adaptec 5805 and it showed to work fine in the installation.
Any suggestions?