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    SubjectRe: 2.6.11rc4: irq 5, nobody cared
    On Feb 20 2005, Matthias-Christian Ott wrote:
    > Rogério Brito wrote:
    > >I am willing to test any patch and configuration (let's call me a
    > >"guinea pig"), but I don't know what I should do. I have, OTOH,
    > >reported my problem many times in the past few days. :-(
    > >
    > >I will retry sending my message to the list once again, with the
    > >details (in my case, the message I get is "irq 10: nobody cared!"
    > >and it is regarding my primary HD on my secondary Promise PDC20265
    > >controller).

    First of all, Matthias-Christian, thank you very much for your kind

    I have already tried contacting the linux-ide mailing list as a CC to my
    earlier messages, but I got no response. I am including some details in
    this e-mail. I included Bartlomiej in the CC, as he is listed as general
    IDE maintainer in the MAINTAINERS file.

    > Report it to Maybe you'll get help there.

    Thanks. I will try filing a bug on that system as soon as I get the
    reply to create my account there.

    > You see it's very difficult to fix such irq problems because some factors
    > can cause such an error.

    Yes, I understand that.

    > Maybe contacting specific malinglists (e.g. for "broken" pci cards
    > the pci mailinglist, etc.), maintainers or developers would be more
    > efficient (cc the lkml) and solve your problem (faster), because
    > this people are specialists are this type of hardware (e.g. pci).
    > What hardware is connect through irq 5?

    In my case, my problem is not with irq 5, but with irq 10, as I
    mentioned earlier.

    The situation is this: I have an Asus A7V motherboard with 2 VIA
    vt82c686a controllers and 2 Promise PDC20265 controllers.

    I recently bought myself a new DVD recorder and since Alan Cox told
    me[*] that the Promise controllers had problems with ATAPI devices, I
    decided to arrange my system this way:

    /dev/hda: the DVD recorder (VIA controller, master)
    /dev/hdc: an old CD recorder (VIA controller, master)
    /dev/hde: my first HD (Promise controller, master)
    /dev/hdg: my second HD (Promise controller, master)

    The Promise controller is able to control the HDs (which now have
    exclusive 80-pin cables) at their maximum, but I get the following
    stack trace if I have /dev/hdg turned on:

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    ACPI: PCI interrupt 0000:00:11.0[A] -> GSI 10 (level, low) -> IRQ 10
    PDC20265: chipset revision 2
    PDC20265: 100% native mode on irq 10
    PDC20265: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
    ide2: BM-DMA at 0x7400-0x7407, BIOS settings: hde:pio, hdf:pio
    ide3: BM-DMA at 0x7408-0x740f, BIOS settings: hdg:pio, hdh:pio
    Probing IDE interface ide2...
    ide2 at 0x8800-0x8807,0x8402 on irq 10
    Probing IDE interface ide3...
    hdg: QUANTUM FIREBALLlct15 30, ATA DISK drive
    irq 10: nobody cared!
    [<c0128fc1>] __report_bad_irq+0x31/0x77
    [<c012906b>] note_interrupt+0x4c/0x71
    [<c0128c86>] __do_IRQ+0x93/0xbd
    [<c0104635>] do_IRQ+0x19/0x24
    [<c010335a>] common_interrupt+0x1a/0x20
    [<c011935c>] __do_softirq+0x2c/0x7d
    [<c01193cf>] do_softirq+0x22/0x26
    [<c010463a>] do_IRQ+0x1e/0x24
    [<c010335a>] common_interrupt+0x1a/0x20
    [<c0128d89>] enable_irq+0x88/0x8d
    [<c021edc0>] probe_hwif+0x2da/0x366
    [<c021a137>] ata_attach+0xa3/0xbd
    [<c021ee5c>] probe_hwif_init_with_fixup+0x10/0x74
    [<c0221597>] ide_setup_pci_device+0x72/0x7f
    [<c0216f82>] pdc202xx_init_one+0x15/0x18
    [<c039182e>] ide_scan_pcidev+0x34/0x59
    [<c039186f>] ide_scan_pcibus+0x1c/0x88
    [<c039179f>] probe_for_hwifs+0xb/0xd
    [<c03917e5>] ide_init+0x44/0x59
    [<c037c6ce>] do_initcalls+0x4b/0x99
    [<c0100272>] init+0x0/0xce
    [<c0100299>] init+0x27/0xce
    [<c0101245>] kernel_thread_helper+0x5/0xb
    [<c021c2a6>] (ide_intr+0x0/0xee)
    Disabling IRQ #10
    irq 10: nobody cared!
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    This is just an excerpt of the messages. I can provide much more
    details if I know what is relevant.

    I had already posted some old dmesg logs at my site
    <>, but this was before I
    got myself a second 80-ribbon cable (I expected that the problem would
    go away, but it didn't).

    Any other comments are more than welcome.

    Thanks in advance, Rogério Brito.

    Rogério Brito - -
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