linux-kernel - irq 19: nobody cared

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Date:	Fri, 19 Sep 2008 13:40:33 -0700
From:	"Chris Li" <lkml@...isli.org>
To:	linux-kernel@...r.kernel.org
Subject: irq 19: nobody cared

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.

Thanks

Chris

Download attachment "config" of type "application/octet-stream" (87729 bytes)

Download attachment "dmesg" of type "application/octet-stream" (29126 bytes)

Download attachment "interrupts" of type "application/octet-stream" (1144 bytes)