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    SubjectRe: Strange EHCI/OHCI IRQ and other PCI errors on boot with 2.6.32 (which 2.6.26 did not see) on Geode LX/CS5536.
    On Wed, Jan 20, 2010 at 03:20:46PM -0500, Alan Stern wrote:
    > Okay, this means that something else is affecting the IRQ line.

    Yep. I went and disabled irq5 on the LPC bus, and that didn't help.

    > > Interestingly the number of interrupts listed in /proc/interrupts is
    > > exactly 300000.
    > That's probably because the kernel disabled the IRQ after 100000
    > unhandled interrupts, and re-enabled it each time a new device was
    > registered for that IRQ.

    Certainly seems to be the case.

    > Or you could just stop using USB on the old box. :-)

    Well I just tried another box, and same thing.

    If I boot with 'irqpoll' then everything seems fine.

    Any idea how I can figure out why irqpoll makes it happy? Does it give
    any reports anywhere about misrouted irqs?

    Len Sorensen

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