Comment 1 for bug 8882

Please send the complete dmesg output, including the entire boot process (try
the -s option).

Are you using the latest kernel?

The "over-current" message is common to bug #8772. The timeout messages seem to
typically indicate IRQ problems. Try booting with noapic, pci=noacpi, and
acpi=off (each individually) and see if any of them make a difference.