Yinghai Lu wrote: > 2008/3/13 Németh Márton <nm127@xxxxxxxxxxx>: >> [ 0.715787] ACPI: PCI Interrupt 0000:00:0c.0[A] -> GSI 16 (level, low) -> IRQ 16 > ... >> [ 25.037202] ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16 > ... >> [ 86.320860] irq 16: nobody cared (try booting with the "irqpoll" option) >> [ 86.320860] Pid: 0, comm: swapper Not tainted 2.6.25-rc5 #1 >> [ 86.320860] [<c01578f7>] __report_bad_irq+0x27/0x90 >> [ 86.320860] [<c0157b96>] note_interrupt+0x236/0x270 >> [ 86.320860] [<c0156fa3>] ? handle_IRQ_event+0x53/0x60 >> [ 86.320860] [<c015823a>] handle_fasteoi_irq+0x7a/0xd0 >> [ 86.320860] [<c0106174>] do_IRQ+0x44/0xa0 >> [ 86.320860] [<c0104c66>] common_interrupt+0x2e/0x34 >> [ 86.320860] [<c0119039>] ? finish_task_switch+0x59/0xc0 >> [ 86.320860] [<c0118fe0>] ? finish_task_switch+0x0/0xc0 >> [ 86.320860] [<c03080d6>] schedule+0x2b6/0x470 >> [ 86.320860] [<f892fdae>] ? acpi_processor_idle+0x0/0x436 [processor] >> [ 86.320860] [<c0102b65>] cpu_idle+0xb5/0xd0 >> [ 86.320860] [<c030343c>] rest_init+0x5c/0x60 >> [ 86.320860] ======================= >> [ 86.320860] handlers: >> [ 86.320860] [<f8915830>] (yenta_interrupt+0x0/0xe0 [yenta_socket]) >> [ 86.320860] [<f8afd3f0>] (via_driver_irq_handler+0x0/0x1c0 [via]) >> [ 86.320860] Disabling IRQ #16 > > wonder if other device is using IRQ #16 too. > > can you boot with pci=routeirq to check that? Yes, in my system the yenta module uses the IRQ #16 also: Yenta: ISA IRQ mask 0x0aa8, PCI irq 16 However, the "nobody cared" message is triggered by the "via" X11 driver. There is a workaround to get rid of it: I switched to "openChrome" X11 driver ( http://www.openchrome.org/ ). See also http://lkml.org/lkml/2008/3/16/10 and http://bugzilla.kernel.org/show_bug.cgi?id=6790 . Regards, Márton Németh -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html