Unisys ES7000 and NEC Express 5800/A1160 systems need 'pci=use_crs' kernel parameter

Release Found: Red Hat Enterprise Linux 5.3 x86_64

Limitation: Red Hat Enterprise Linux 5.3 x86_64 on Unisys ES7000 and NEC Express 5800/A1160 model servers

Symptom:

Some PCI devices might appear to be missing from the system

Solution:

The kernel boot parameter 'pci=use_crs' is required to access all PCI devices in the system. Without this boot parameter, devices behind PCI bridges will not be seen.