Messages in this thread | | | Date | Sat, 19 Jul 2008 14:19:21 -0400 | From | Jack Howarth <> | Subject | Re: [PATCH] x86,pci: dmi check for mackpro 2.2 mmconf |
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On Sat, Jul 19, 2008 at 10:26:02AM -0700, Jesse Barnes wrote: > On Friday, July 18, 2008 10:28 pm Yinghai Lu wrote: > > On Fri, Jul 18, 2008 at 10:12 PM, Jack Howarth > > > > <howarth@bromo.msbb.uc.edu> wrote: > > > Would that imply that this might be more fallout of the BIOS bug in the > > > MacBook Pro where insufficient address space is reserved for the number > > > of buses claimed? > > > > that is good enough with 64 buses like laptop. > > > > > Is there some point in the PCIEASPM based code where you > > > could duplicate the same sort of fix? I would be happy to test any debug > > > patches that might help pinpoint where such a fix is needed. > > > > Jesse, who is maintainer for ASPM code? > > I've been looking to Shaohua (cc'd) for ASPM stuff. > > Jesse
Jesse, I have just tried tip with CONFIG_PCIEASPM and I get the same hang as always. I am currently using 'debug initcall_debug' as I can only see a limited number of lines on my screen. These show...
PCI: 0000:00:1d.7 reg 10 32bit mmio: [d840500, d84057ff] pci: 0000:00:1d.7 PME# supported from D0 D3hot D3cold pci: 0000:00:1d.7 PME# disabled pci: 0000:00:1f.0 quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO pci: 0000:00:1f.0 quirk: region 0500-053f claimed by ICH6 GPIO PCI: 0000:00:1f.1 reg 10 io port: [40d8,40df] PCI: 0000:00:1f.1 reg 14 io port: [40ec,40ef] PCI: 0000:00:1f.1 reg 18 io port: [40d0,40d7] PCI: 0000:00:1f.1 reg 1c io port: [40e8,40eb] PCI: 0000:00:1f.1 reg 20 io port: [40b0,40bf] PCI: 0000:00:1f.2 reg 10 io port: [40c8,40cf] PCI: 0000:00:1f.2 reg 14 io port: [40e4,40e7] PCI: 0000:00:1f.2 reg 18 io port: [40c0,40c7] PCI: 0000:00:1f.2 reg 1c io port: [40e0,40e3] PCI: 0000:00:1f.2 reg 20 io port: [40a0,40af] PCI: 0000:00:1f.2 reg 24 32bit mmio: [d8405000,d84053ff] pci: 0000:00:1f.2 PME# supported from D3hot pci: 0000:00:1f.2 PME# disabled PCI: 0000:00:1f.3 reg 20 io port [efa0,efbf] PCI: 0000:01:00.0 reg 10 32bit mmio: [c0000000,cfffffff] PCI: 0000:01:00.0 reg 14 io port: [3000,30ff] PCI: 0000:01:00.0 reg 18 32bit mmio: [d8300000,d830ffff] pci: 0000:01:00.0 : supports D1 pci: 0000:01:00.0 : supports D2
...at which point the machine freezes. If I boot tip with quiet, I happen to see the message...
ACPI: EC: GPE Storm detected, disabling EC GPE
which I never haven't seen with 2.6.26 built without PCIEASPM. I also have CONFIG_PCIEASPM_DEBUG set. What options to have have to pass to the kernel when booting to cause that feature to spew useful info? Jack
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