Several of these messages in /var/log/messages:

Dec  7 01:50:30 localhost logger: ACPI event unhandled: processor CPU0 00000080 00000001
Dec  7 01:50:30 localhost acpid: action exited with status 0
Dec  7 01:50:30 localhost acpid: completed event "processor CPU0 00000080 00000001"
Dec  7 01:55:55 localhost acpid: received event "processor CPU0 00000080 00000001"
Dec  7 01:55:55 localhost acpid: notifying client 7467[0:0]
Dec  7 01:55:55 localhost acpid: executing action "/etc/acpi/default.sh processor CPU0 00000080 00000001"
Dec  7 01:55:55 localhost logger: ACPI event unhandled: processor CPU0 00000080 00000001
Dec  7 01:55:55 localhost acpid: action exited with status 0

What is wrong?