Messages in this thread | | | Date | Mon, 01 Feb 2010 12:36:59 -0800 | From | Yinghai Lu <> | Subject | Re: IRQ regression messes up xseries 330 SCI resulting in apic=off - bisected to commit b9c61b70075c87a861262473 |
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On 02/01/2010 06:59 AM, Thomas Renninger wrote: > Hi, > > booting a latest kernel on this machine results in: > > PCI: PCI BIOS revision 2.10 entry at 0xfd61c, last bus=1 > PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0 > ACPI: SCI (IRQ30) allocation failed > ACPI Exception: AE_NOT_ACQUIRED, Unable to install System Control Interrupt handler (20090903/evevent-161) > ACPI: Unable to start the ACPI Interpreter > > Later all kind of devices fail... > ... > > > Attached are dmesg of an umodified broken 2.6.32 kernel and > dmesg of a 2.6.32 kernel in which I reverted above patch (apic=verbose). > The reverting needed some adjusting and I did this without understanding > the code. I also attach the backported patch reverting above for 2.6.32 > which makes the machine work again (see dmesg attachment). > This probably cannot go in, it would be great if someone could help > finding a proper patch for mainline which makes the machine work again. > (The ACPI irq, SCI, is meant to be on IRQ 30, rerouted from IRQ 3 via > APIC source override table, which is rather odd/uncommon. Hope that helps)
ok, the root cause the SCI in on second ioapic....
will have a patch for it.
Thanks
Yinghai
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