Comment 11 for bug 112508

I've discovered the similar problem on HP Pavilion DV9266EU. After the "disabling IRQ"-message my laptop doesn't recognize newly plugged in devices.

I'm booting the kernel with noapic, because the laptop wouldn't start up without that option.

The relevant dmesg part is:
[19709.680000] irq 7: nobody cared (try booting with the "irqpoll" option)
[19709.680000] [<c015b5d4>] __report_bad_irq+0x24/0x80
[19709.680000] [<c015b892>] note_interrupt+0x262/0x2a0
[19709.680000] [<f88f96c2>] usb_hcd_irq+0x22/0x60 [usbcore]
[19709.680000] [<c015aaf0>] handle_IRQ_event+0x30/0x60
[19709.680000] [<c015c4ab>] handle_level_irq+0xdb/0x110
[19709.680000] [<c0106b1b>] do_IRQ+0x3b/0x70
[19709.680000] [<c0102e00>] default_idle+0x0/0x60
[19709.680000] [<c0105223>] common_interrupt+0x23/0x30
[19709.680000] [<c0102e00>] default_idle+0x0/0x60
[19709.680000] [<c011dba2>] native_safe_halt+0x2/0x10
[19709.680000] [<c0102e3c>] default_idle+0x3c/0x60
[19709.680000] [<c0102413>] cpu_idle+0x53/0xe0
[19709.680000] =======================
[19709.680000] handlers:
[19709.680000] [<f88f96a0>] (usb_hcd_irq+0x0/0x60 [usbcore])
[19709.680000] Disabling IRQ #7