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    Subject2.4.24 ACPI errors (already programmed)
    Some errors reported when booted with CONFIG_ACPI=y

    Wondering if this is serious?

    -- dmesg --

    BIOS-provided physical RAM map:
    BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
    BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
    BIOS-e820: 0000000000100000 - 000000000fef0000 (usable)
    BIOS-e820: 000000000fef0000 - 000000000fef3000 (ACPI NVS)
    BIOS-e820: 000000000fef3000 - 000000000ff00000 (ACPI data)
    BIOS-e820: 000000000ff00000 - 0000000010000000 (reserved)
    BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
    0MB HIGHMEM available.
    254MB LOWMEM available.
    ACPI: have wakeup address 0xc0001000
    found SMP MP-table at 000f5190
    hm, page 000f5000 reserved twice.
    hm, page 000f6000 reserved twice.
    hm, page 000f0000 reserved twice.
    hm, page 000f1000 reserved twice.
    On node 0 totalpages: 65264
    zone(0): 4096 pages.
    zone(1): 61168 pages.
    zone(2): 0 pages.
    ACPI: RSDP (v000 GBT ) @ 0x000f6c20
    ACPI: RSDT (v001 GBT AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x0fef3000
    ACPI: FADT (v001 GBT AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x0fef3040
    ACPI: MADT (v001 GBT AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x0fef69c0
    ACPI: DSDT (v001 GBT AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000
    ACPI: Local APIC address 0xfee00000
    ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
    Processor #0 Pentium(tm) Pro APIC version 17
    ACPI: IOAPIC (id[0x02] address[0xfec00000] global_irq_base[0x0])
    IOAPIC[0]: Assigned apic_id 2
    IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, IRQ 0-23
    ACPI: INT_SRC_OVR (bus[0] irq[0x0] global_irq[0x2] polarity[0x0] trigger[0x0])
    ACPI: INT_SRC_OVR (bus[0] irq[0x9] global_irq[0x9] polarity[0x1] trigger[0x3])
    ACPI BALANCE SET
    Using ACPI (MADT) for SMP configuration information
    Kernel command line: ro root=/dev/hda6
    Initializing CPU#0
    Detected 1269.583 MHz processor.
    Console: colour VGA+ 80x25
    Calibrating delay loop... 2536.24 BogoMIPS
    Memory: 255372k/261056k available (1443k kernel code, 5300k reserved, 275k data, 276k init, 0k highmem)
    Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
    Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
    Mount cache hash table entries: 512 (order: 0, 4096 bytes)
    Buffer cache hash table entries: 16384 (order: 4, 65536 bytes)
    Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
    CPU: L1 I cache: 16K, L1 D cache: 16K
    CPU: L2 cache: 512K
    Intel machine check architecture supported.
    Intel machine check reporting enabled on CPU#0.
    CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
    CPU: Common caps: 0383fbff 00000000 00000000 00000000
    CPU: Intel(R) Pentium(R) III CPU family 1266MHz stepping 01
    Enabling fast FPU save and restore... done.
    Enabling unmasked SIMD FPU exception support... done.
    Checking 'hlt' instruction... OK.
    POSIX conformance testing by UNIFIX
    enabled ExtINT on CPU#0
    ESR value before enabling vector: 00000000
    ESR value after enabling vector: 00000000
    ENABLING IO-APIC IRQs
    init IO_APIC IRQs
    IO-APIC (apicid-pin) 2-0, 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22, 2-23 not connected.
    ..TIMER: vector=0x31 pin1=2 pin2=-1
    Using local APIC timer interrupts.
    calibrating APIC timer ...
    ..... CPU clock speed is 1269.5619 MHz.
    ..... host bus clock speed is 133.6380 MHz.
    cpu: 0, clocks: 1336380, slice: 668190
    CPU0<T0:1336368,T1:668176,D:2,S:668190,C:1336380>
    mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
    mtrr: detected mtrr type: Intel
    ACPI: Subsystem revision 20031002
    PCI: PCI BIOS revision 2.10 entry at 0xfb2b0, last bus=1
    PCI: Using configuration type 1
    IOAPIC[0]: Set PCI routing entry (2-9 -> 0x71 -> IRQ 9 Mode:1 Active:0)
    ACPI: Interpreter enabled
    ACPI: Using IOAPIC for interrupt routing
    ACPI: System [ACPI] (supports S0 S1 S4 S5)
    ACPI: PCI Root Bridge [PCI0] (00:00)
    PCI: Probing PCI hardware (bus 00)
    Transparent bridge - Intel Corp. 82801BA/CA/DB/EB PCI Bridge
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.HUB0._PRT]
    ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *7 9 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 9 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
    ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 5 6 7 9 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 5 6 7 9 10 11 *12 14 15)
    PCI: Probing PCI hardware
    IOAPIC[0]: Set PCI routing entry (2-17 -> 0xa9 -> IRQ 17 Mode:1 Active:1)
    00:00:01[A] -> 2-17 -> IRQ 17
    IOAPIC[0]: Set PCI routing entry (2-18 -> 0xb1 -> IRQ 18 Mode:1 Active:1)
    00:00:01[B] -> 2-18 -> IRQ 18
    IOAPIC[0]: Set PCI routing entry (2-19 -> 0xb9 -> IRQ 19 Mode:1 Active:1)
    00:00:01[C] -> 2-19 -> IRQ 19
    IOAPIC[0]: Set PCI routing entry (2-16 -> 0xc1 -> IRQ 16 Mode:1 Active:1)
    00:00:01[D] -> 2-16 -> IRQ 16
    Pin 2-17 already programmed
    Pin 2-18 already programmed
    Pin 2-19 already programmed
    Pin 2-16 already programmed
    Pin 2-16 already programmed
    Pin 2-17 already programmed
    Pin 2-18 already programmed
    Pin 2-19 already programmed
    Pin 2-16 already programmed
    Pin 2-17 already programmed
    IOAPIC[0]: Set PCI routing entry (2-23 -> 0xc9 -> IRQ 23 Mode:1 Active:1)
    00:00:1f[C] -> 2-23 -> IRQ 23
    Pin 2-19 already programmed
    IOAPIC[0]: Set PCI routing entry (2-20 -> 0xd1 -> IRQ 20 Mode:1 Active:1)
    00:01:08[A] -> 2-20 -> IRQ 20
    IOAPIC[0]: Set PCI routing entry (2-21 -> 0xd9 -> IRQ 21 Mode:1 Active:1)
    00:01:08[B] -> 2-21 -> IRQ 21
    IOAPIC[0]: Set PCI routing entry (2-22 -> 0xe1 -> IRQ 22 Mode:1 Active:1)
    00:01:08[C] -> 2-22 -> IRQ 22
    Pin 2-23 already programmed
    Pin 2-18 already programmed
    Pin 2-21 already programmed
    Pin 2-22 already programmed
    Pin 2-16 already programmed
    Pin 2-21 already programmed
    Pin 2-22 already programmed
    Pin 2-16 already programmed
    Pin 2-18 already programmed
    Pin 2-22 already programmed
    Pin 2-16 already programmed
    Pin 2-18 already programmed
    Pin 2-21 already programmed
    number of MP IRQ sources: 15.
    number of IO-APIC #2 registers: 24.
    testing the IO APIC.......................


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