If IOV technologies such as SDIO or SRIOV are utilized, the ldm command might hang when removing assigned I/O devices from guest domains, or when unbinding those guest domains, if the assigned devices are in use. Aborting the hung command with the Ctrl-C keys might also fail.
Some command examples:
ldm unbind ldg1
ldm rm-io /SYS/RIO/NET0/IOVNET.PF0.VF10 ldg1
ldm rm-io /SYS/IOU2/PCIE2 ldg1
Recovery: Reboot Oracle Solaris on the primary domain to recover. If any guest domains share I/O resources with the primary domain, you must also reboot Oracle Solaris on those guest domains.
Workaround: No workaround is available at this time. Check for the availability of a patch with your authorized Oracle Service Provider.