[ 713.443147] irq 20: nobody cared (try booting with the "irqpoll" option) [ 713.443156] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G OE 4.4.0-42-generic #62-Ubuntu [ 713.443157] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 713.443159] 0000000000000086 1111e6ad4a7ced1b ffff88021fc03d18 ffffffff813f1f83 [ 713.443162] ffff8800d8f3e600 ffff8800d8f3e6b4 ffff88021fc03d40 ffffffff810dd7a3 [ 713.443163] ffff8800d8f3e600 0000000000000000 0000000000000014 ffff88021fc03d78 [ 713.443165] Call Trace: [ 713.443167] [] dump_stack+0x63/0x90 [ 713.443184] [] __report_bad_irq+0x33/0xc0 [ 713.443186] [] note_interrupt+0x247/0x290 [ 713.443188] [] handle_irq_event_percpu+0x167/0x1d0 [ 713.443189] [] handle_irq_event+0x3e/0x60 [ 713.443191] [] handle_fasteoi_irq+0x96/0x150 [ 713.443194] [] handle_irq+0x1a/0x30 [ 713.443200] [] do_IRQ+0x4b/0xd0 [ 713.443202] [] common_interrupt+0x82/0x82 [ 713.443206] [] ? __do_softirq+0x81/0x290 [ 713.443208] [] irq_exit+0xa3/0xb0 [ 713.443209] [] smp_apic_timer_interrupt+0x42/0x50 [ 713.443211] [] apic_timer_interrupt+0x82/0x90 [ 713.443212] [] ? tick_nohz_idle_enter+0x43/0x70 [ 713.443216] [] ? tick_nohz_idle_enter+0x3c/0x70 [ 713.443219] [] cpu_startup_entry+0x95/0x350 [ 713.443222] [] rest_init+0x7c/0x80 [ 713.443226] [] start_kernel+0x481/0x4a2 [ 713.443228] [] ? early_idt_handler_array+0x120/0x120 [ 713.443229] [] x86_64_start_reservations+0x2a/0x2c [ 713.443230] [] x86_64_start_kernel+0x14a/0x16d [ 713.443231] handlers: [ 713.443235] [] usb_hcd_irq [ 713.443247] [] vgdrvLinuxISR [vboxguest] [ 713.443248] Disabling IRQ #20