BUG: soft lockup detected on CPU#1! [] softlockup_tick+0xb2/0x100 [] update_process_times+0x33/0x80 [] tick_sched_timer+0x5b/0xc0 [] hrtimer_interrupt+0x143/0x1d0 [] smp_apic_timer_interrupt+0x53/0x90 [] getnstimeofday+0x36/0xc0 [] apic_timer_interrupt+0x28/0x30 [] _spin_lock_irqsave+0x54/0x70 [] tick_broadcast_oneshot_control+0x1e/0x110 [] tick_notify+0x1f6/0x350 [] acpi_hw_register_write+0x11b/0x14b [] notifier_call_chain+0x25/0x30 [] clockevents_notify+0x19/0x70 [] acpi_processor_idle+0x25b/0x3d2 [processor] [] cpu_idle+0x84/0xe0 ======================= BUG: soft lockup detected on CPU#0! [] softlockup_tick+0xb2/0x100 [] update_process_times+0x33/0x80 [] tick_sched_timer+0x5b/0xc0 [] hrtimer_interrupt+0x143/0x1d0 [] tick_do_broadcast+0x5d/0x70 [] tick_handle_oneshot_broadcast+0x82/0x110 [] timer_interrupt+0x31/0x40 [] handle_IRQ_event+0x25/0x50 [] handle_edge_irq+0xad/0x130 [] do_IRQ+0x3b/0x70 [] ata_hsm_move+0x375/0x7b0 [libata] [] ack_ioapic_quirk_irq+0x9/0x90 [] common_interrupt+0x23/0x28 [] _spin_unlock_irqrestore+0xb/0x30 [] ata_interrupt+0xc8/0x200 [libata] [] getnstimeofday+0x36/0xc0 [] handle_IRQ_event+0x25/0x50 [] handle_edge_irq+0xad/0x130 [] do_IRQ+0x3b/0x70 [] tick_notify+0x1f6/0x350 [] common_interrupt+0x23/0x28 [] acpi_processor_idle+0x20f/0x3d2 [processor] [] cpu_idle+0x84/0xe0 [] start_kernel+0x3ef/0x4d0 [] unknown_bootoption+0x0/0x260 =======================