Messages in this thread | | | Subject | RE: 2.6.9-rc2-mm4 - Getting dev->irq equals 0 | Date | Mon, 4 Oct 2004 12:16:18 -0700 | From | "Sy, Dely L" <> |
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On Friday, October 01, 2004 3:41 PM, Bjorn Helgaas wrote: > > 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.
Basically, the problem found was when I tried to use INTx mode for hot-plug controllers in ACPI enabled kernel. I don't think this is related to MSI; the way I stated in the original email was not clear.
I tried to boot with "pci=routeirq" and I got proper dev->irq for the hot-plug controllers. This tells me that my hot-plug drivers need to call pci_enable_device(), correct?
> If that does make a difference, please send me the output > of lspci and a dmesg.
I will send them to you.
Thanks, Dely
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