Bug ID 6808832: You can configure a maximum of two domains with dedicated PCI-E root complexes on systems such as the Sun Fire T5240. These systems have two UltraSPARC T2+ CPUs and two I/O root complexes.
pci@500 and pci@400 are the two root complexes in the system. The primary domain will always contain at least one root complex. A second domain can be configured with an unassigned or unbound root complex.
The pci@400 fabric (or leaf) contains the onboard e1000g network card. The following circumstances could lead to a domain panic:
If the system is configured with a primary domain that contains pci@500 and a second domain that contains pci@400
For some blades, the primary domain (system disk) is on the pci@400 bus by default.
The e1000g device on the pci@400 fabric is used to boot the second domain
Avoid the following network devices if they are configured in a non-primary domain:
When these conditions are true, the domain will panic with a PCI-E Fatal error.
Avoid such a configuration, or if the configuration is used, do not boot from the listed devices.