x86: Troubleshooting PCI Configuration Problems

Error Message

cfgadm: Configuration operation invalid: invalid transition

Cause

An invalid transition was attempted.

Solution

Check whether the cfgadm -c command was issued appropriately. Use cfgadm to check the current receptacle and occupant state and make sure the ap_id is correct.

Error Message

cfgadm: Attachment point not found

Cause

Specified attachment point was not found.

Solution

Check whether the attachment point is correct. Use the cfgadm to display a list of available attachment points. Also check the physical path to see if the attachment point is still there.

In addition to cfgadm command, several other commands are helpful during hot-plug operations. The prtconf(1M) command confirms whether or not Solaris recognizes the hardware. After a successful configuration of a hot-pluggable adapter card, use the prtconf command to verify that the specific PCI bus instance for the new hardware displays in the prtconf output. The prtconf output also indicates if the driver for the new hardware is attached.