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    SubjectRe: [19.666764] Disabling IRQ #23
    On Wed, Sep 10, 2008 at 12:36 PM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
    > On Wed, Sep 10, 2008 at 12:06 PM, Justin Mattock
    > <justinmattock@gmail.com> wrote:
    >> hello; I accidently erased the original thread
    >> appologize for starting a new one of the same,
    >> I've been noticing this message(below) appear
    >> every "X" amount of boot's(maybe ten or so);
    >> normally upon booting leaving me unable
    >> to login.
    >>
    >> below is dmesg of the message:
    >>
    >> [ 0.400075] pci 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    > ..
    >> [ 0.400104] pci 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    > ...
    >> [ 10.848404] USB Universal Host Controller Interface driver v3.0
    >> [ 10.857709] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    >> [ 10.867186] uhci_hcd 0000:00:1d.0: setting latency timer to 64
    >> [ 10.876344] uhci_hcd 0000:00:1d.0: UHCI Host Controller
    >> [ 10.885571] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
    >> [ 10.894904] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned
    >> bus number 1
    >> [ 10.904218] uhci_hcd 0000:00:1d.0: irq 23, io base 0x00004080
    >> [ 10.913838] usb usb1: configuration #1 chosen from 1 choice
    >> [ 10.923378] hub 1-0:1.0: USB hub found
    >> [ 10.932676] hub 1-0:1.0: 2 ports detected
    > ..
    >> [ 12.119258] usb 2-2: configuration #1 chosen from 1 choice
    >> [ 12.140614] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
    >> [ 12.149917] ehci_hcd 0000:00:1d.7: setting latency timer to 64
    >> [ 12.159523] ehci_hcd 0000:00:1d.7: EHCI Host Controller
    >> [ 12.168858] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
    >> bus number 5
    >> [ 12.182246] ehci_hcd 0000:00:1d.7: debug port 1
    >> [ 12.191574] ehci_hcd 0000:00:1d.7: cache line size of 32 is not supported
    >> [ 12.200970] ehci_hcd 0000:00:1d.7: irq 23, io mem 0x50405400
    >> [ 12.250079] usb 3-2: new full speed USB device using uhci_hcd and address 2
    >> [ 12.270062] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00,
    >> driver 10 Dec 2004
    >> [ 12.279955] usb usb5: configuration #1 chosen from 1 choice
    >> [ 12.289791] hub 5-0:1.0: USB hub found
    >> [ 12.299531] hub 5-0:1.0: 8 ports detected
    >> [ 12.309416] ath_pci: svn r3359
    >> [ 12.332576] hub 3-0:1.0: unable to enumerate USB device on port 2
    >> [ 12.356208] ACPI: SBS HC: EC = 0xf78c8000, offset = 0x20, query_bit = 0x10
    >> [ 12.478925] Symbol init_mm is marked as UNUSED, however this module
    >> is using it.
    >> [ 12.488823] This symbol will go away in the future.
    >> [ 12.498834] Please evalute if this is the right api to use and if
    >> it really is, submit a report the linux kernel mailinglist together
    >> with submitting your code for inclusion.
    >
    >> [ 18.821797] irq 23: nobody cared (try booting with the "irqpoll" option)
    >> [ 18.830005] Pid: 2371, comm: swapon Tainted: P 2.6.27-rc6 #22
    >> [ 18.830005] [<c0151748>] __report_bad_irq+0x2e/0x6f
    >> [ 18.830005] [<c015196f>] note_interrupt+0x1e6/0x217
    >> [ 18.830005] [<c0150d47>] ? handle_IRQ_event+0x2a/0x5a
    >> [ 18.830005] [<c0151f20>] handle_fasteoi_irq+0x91/0xb6
    >> [ 18.830005] [<c0104ff2>] do_IRQ+0x6c/0x86
    >> [ 18.830005] [<c0103a6f>] common_interrupt+0x23/0x28
    >> [ 18.830005] [<c021007b>] ? blkdev_ioctl+0x4b0/0x719
    >> [ 18.830005] [<c0117347>] ? kunmap_atomic+0x4/0xa5
    >> [ 18.830005] [<c015fc58>] __do_fault+0x2ca/0x32a
    >> [ 18.830005] [<c0170cf0>] ? check_bytes_and_report+0x21/0x93
    >> [ 18.830005] [<c0161191>] handle_mm_fault+0x2de/0x62c
    >> [ 18.830005] [<c01635e3>] ? remove_vma+0x41/0x47
    >> [ 18.830005] [<c01727d0>] ? kmem_cache_free+0x80/0x96
    >> [ 18.830005] [<c039ebac>] do_page_fault+0x2d8/0x60c
    >> [ 18.830005] [<c0127a95>] ? irq_exit+0x53/0x6d
    >> [ 18.830005] [<c039e8d4>] ? do_page_fault+0x0/0x60c
    >> [ 18.830005] [<c039d2a2>] error_code+0x72/0x78
    >> [ 18.830005] =======================
    >> [ 18.830005] handlers:
    >> [ 18.830005] [<c02cc9fb>] (usb_hcd_irq+0x0/0x79)
    >> [ 18.830005] [<c02cc9fb>] (usb_hcd_irq+0x0/0x79)
    >> [ 18.830005] Disabling IRQ #23
    >
    >
    > uhci and ehci share one irq. and irq handers for them all registered....
    >
    > or there is hub under that uhci again...
    >
    > YH
    >

    Not sure,
    let me disable ehci_hcd for a while to see if this message appears


    --
    Justin P. Mattock


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