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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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