Re: 2.6.9-rc2-mm4 - Getting dev->irq equals 0

[Bjorn Helgaas]

> I encountered a problem in running shpchp & pciehp drivers on
> 2.6.9-rc2-mm4 kernel.  With ACPI & MSI enabled in the kernel, I 
> got dev->irq properly for the hot-plug controllers.  With ACPI 
> enabled and MSI not-enabled in this kernel, I got dev->irq 
> equal 0 for the controllers. With the same options set in 
> 2.6.8.1 & 2.6.9-rc2, things worked fine on the same system.

Does it make any difference if you boot with "pci=routeirq"?
I haven't looked at MSI recently, but it's possible that's
sensitive to have all the IRQs programmed at boot-time.

If that does make a difference, please send me the output
of lspci and a dmesg.
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