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    Subject[v3.4-rc1] ACPI regression bisected
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    Hi,

    my Notebook ( Thinkpad T43) doesn't boot with V3.4-rc1.
    The kernel stops booting after displaying the following:

    ACPI: Core revision 20120320
    ACPI: setting ELCR to 0200 (from 0800)
    Performance Events: p6 PMU driver.
    ... version: 0
    ... bit width: 32
    ... generic registers: 2
    ... value mask: 00000000ffffffff
    ... max period: 000000007fffffff
    ... fixed-purpose events: 0
    ... event mask: 0000000000000003
    devtmpfs: initialized
    NET: Registered protocol family 16
    ACPI: bus type pci registered
    PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem
    0xe0000000-0xefffffff] (base 0xe0000000)
    PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in E820
    PCI: Using MMCONFIG for extended config space
    PCI: Using configuration type 1 for base access
    bio: create slab <bio-0> at 0
    ACPI: Added _OSI(Module Device)
    ACPI: Added _OSI(Processor Device)
    ACPI: Added _OSI(3.0 _SCP Extensions)
    ACPI: Added _OSI(Processor Aggregator Device)
    ACPI: EC: EC description table is found, configuring boot EC

    Comparing this with the displays of kernel v3.3 the next expected
    outputs would be:

    ACPI: Interpreter enabled
    ACPI: (supports S0 S5)


    I bisected the problem to commit:
    6fe0d0628245fdcd6fad8b837c81e8f7ebc3364d "ACPI: Make ACPI interrupt threaded"

    Please cc me I'm not subscribed.

    Regards,
    Joerg Otte


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