Messages in this thread | | | Date | Sat, 01 Jan 2005 15:41:24 -0500 | From | Bill Davidsen <> | Subject | Re: PATCH: 2.6.10 - Misrouted IRQ recovery for review |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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