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    SubjectRe: irq 21: nobody cared 2.6.24-rc1
    Bongani Hlope wrote:
    > On Thursday 01 November 2007 22:32:38 Andrew Morton wrote:
    >> On Thu, 25 Oct 2007 10:45:36 +0200
    >>
    >> Bongani Hlope <bonganilinux@mweb.co.za> wrote:
    >>> Booting with irqpoll works
    >>>
    >>> ls /proc/irq/21/ (with irqpoll)
    >>> ehci_hcd:usb1/ smp_affinity uhci_hcd:usb2/ uhci_hcd:usb3/
    >>> uhci_hcd:usb4/
    >>>
    >>> Disabling IRQ #21
    >> Was any earlier kernel version OK? 2.6.23?
    >
    > Yes the 2.6.23 kernel works fine. This seems to happen when I boot the
    > 2.6.24-rc1 kernel with an iPod attached (hope this helps), but the 2.6.23
    > kernel doesn't experience this problem.
    ..

    Something in 2.6.24-rc* seems to be a lot more fussy about this kind
    of situation than in 2.6.23. I have a driver (sata_qstor) that manages
    a piece of hardware that unfortunately generates spurious interrupts
    regularly.

    With 2.6.23, it was only rarely bad enough to cause the "Disabling IRQ #nn"
    event to occur. But in 2.6.24-rc*, it happens almost immediately now
    (so, yes, I've gone and put a workaround into the driver for it).

    Something's different.
    -
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