Domain Can Lose CPUs During a Migration If Another Domain Is Rebooting

Bug ID 6775847: For a period of time during a domain migration, a system can hang or end up with just one VCPU if another domain on the target system is rebooted.

ldm start and ldmm stop operations are prevented from running at this time. However, the issuing of a reboot or init command in the Solaris OS instance that runs on a guest domain cannot be prevented.

Workaround: Avoid rebooting domains on the target system while a migration is in progress.

Recovery: If the symptoms of this problem are detected, stop and restart the migrated domain on the target system.