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    SubjectRe: PATCH: 2.6.10 - Misrouted IRQ recovery for review
    Alan Cox wrote:
    > Ported to the new kernel/irq code.

    [snip]

    > } else {
    > - printk(KERN_ERR "irq %d: nobody cared!\n", irq);
    > + printk(KERN_ERR "irq %d: nobody cared (try booting with the \"irqpoll\" option.\n", irq);
    > }
    > dump_stack();
    > printk(KERN_ERR "handlers:\n");
    [snip]

    I saw this message coming out of ac2 with my runaway IRQ 18 problem, so
    I tried irqpoll, and it just "went away" beyond sysreq or other gentle
    recovery.

    I suspect that the problem lies in sharing the shared IRQ, and that
    polling doesn't solve the problem, just changes it to a hang witing for
    the misrouted IRQ. Still poking for the real cause, no patch or
    anything, but acpi={off,ht}, noapic, pci=routeirq, etc have no benefit
    (for me).


    --
    bill davidsen <davidsen@tmr.com>
    CTO TMR Associates, Inc
    Doing interesting things with small computers since 1979
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