Re: irq 19: nobody cared

From: Steven Rostedt
Date: Sun Oct 19 2008 - 00:12:16 EST

On Fri, Sep 19, 2008 at 01:40:33PM -0700, Chris Li wrote:
> Hi,
> I run into this irq nobody care problem on a dell vostro 200 machine.
> I test the latest git tree. The problem is there as well.
> I also update the BIOS to the latest version. Doesn't help either.
> It seem the IRQ in question is shared between UHCI and SATA controller.
> So I am not sure it is a SATA problem or a USB problem.
> usb 4-2: new full speed USB device using uhci_hcd and address 2
> irq 19: nobody cared (try booting with the "irqpoll" option)
> Pid: 427, comm: nash-hotplug Not tainted 2.6.27-rc6 #1
> [<c045e3e0>] __report_bad_irq+0x2e/0x6f
> [<c045e5ea>] note_interrupt+0x1c9/0x21b
> [<c045db80>] ? handle_IRQ_event+0x2a/0x5a
> [<c045eba8>] handle_fasteoi_irq+0x99/0xc0
> [<c045eb0f>] ? handle_fasteoi_irq+0x0/0xc0
> [<c04059d3>] do_IRQ+0x9a/0xc4
> [<c0404467>] common_interrupt+0x23/0x28
> [<c0403989>] ? sysenter_past_esp+0x3a/0x62
> [<c0630000>] ? serial8250_probe+0x169/0x1c0
> =======================
> I attached the kernel config file, dmesg and /proc/interrupts.
> Any suggestions? I am willing to try fancy patches.

Hi Chris,

Do you still have this problem, without any "irqpoll" workarourd? If so,
can you boot with the "noapic" kernel command line parameter, and see if
that stops the warning?


-- Steve

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