Some computers also allow hotplug for PCI devices. To make full use of this,
special kernel modules must be loaded. However, these
modules can cause problems on non-PCI hotplug computers. Unfortunately,
hotplug PCI slots cannot be autodetected. To configure it manually,
set the variable
HOTPLUG_DO_REAL_PCI_HOTPLUG
in file
/etc/sysconfig/hotplug
to yes
.