Messages in this thread | | | Date | Wed, 16 Jul 2008 15:35:17 -0700 | From | "Yinghai Lu" <> | Subject | Re: 2.6.26-rc9-git9 doesn't boot on Macintel |
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On Wed, Jul 16, 2008 at 10:29 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote: > On Wed, Jul 16, 2008 at 7:08 AM, Jack Howarth <howarth@bromo.msbb.uc.edu> wrote: >> Yunghai, >> I had partial success with your proposed patch. The MacPro2 >> identifier doesn't appear to be correct for a second generation >> MacBook Pro so I had to comment out the line... >> >> DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2"), >> >> With that change, a patched 2.6.26-git2 kernel now uses MMCONFIG. >> However I still see the same hang. The boot messages I see on >> screen are... >> >> ACPI: bus type pci registered >> PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 63 >> PCI: MCFG area at f0000000 reserved in E820 >> PCI: Using MMCONFIG at f0000000 - f3ffffff >> PCI: Using configuration type 1 for base access >> ACPI: EC: EC description table is found, configuring boot EC >> ACPI: EC: non-query interrupt received, switching to interrupt mode > > something wrong here > >> ACPI: BIOS_OSI(Linux) query ignored via DMI >> ACPI: Interpreter enabled >> ACPI: (S0 S3 S4 S5) >> ACPI: Using IOAPIC for interrupt routing >> ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 >> ACPI: EC: drivers started in interrupt mode >> ACPI: PCI Root Bridge [PCI0] (0000.00) >> pci 0000:00:1f.00 : quirk region 0400-047f claimed by ICH6 ACPI/GPIO/TCO >> pci 0000.00:1f:00 : quirk region 0500-053f claimed by ICH6 GPIO >> >> ...at which the boot hangs. On the positive side, I was able to fully >> boot if I passed 'pci=noacpi' to the kernel options (which never worked >> before with 2.6.26). >> I can post the dmesg from a noacpi boot of the >> patched kernel to my bugzilla report tonight if it would help debug the >> issues we are still seeing with ACPI. > > that will help. > >> One thing I notice with the patched kernel (without noacpi) is that I >> only see buses 0 - 63. A normal boot of 2.6.25.10 on this machine (or >> 2.6.26 reportedly on a MacMini) always shows buses 0 - 255. > > that is right > >> Could this >> be related to the ACPI breakage? Let me know if I can do anything >> else to debug the ACPI issues under MMCONFIG. > > please boot with > debug apic=verbose pci=routeirq >
please check latest linus tree.
the commit could be related.
commit c91d924e3af08d4f98eab6ebf81f2b8ce132448f Author: Bob Moore <robert.moore@intel.com> Date: Tue Jun 10 12:38:10 2008 +0800
ACPICA: Fix for hang on GPE method invocation
Fixes problem where the new method argument count validation mechanism will enter an infinite loop when a GPE method is dispatched. Problem fixed be removing the obsolete code that passes GPE block information to the notify handler via the control method parameter pointer.
YH
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