An unexpected IO-APIC was found.
I got this warning message when I booted 2.4.22.
This machine has an ASUS P4S8X motherboard.
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Linux version 2.4.22 ([email protected]) (gcc version 3.3.1 20030626 (Debian prerelease)) #1 Mon Aug 25 18:12:50 EDT 2003 BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000005fffc000 (usable)
BIOS-e820: 000000005fffc000 - 000000005ffff000 (ACPI data)
BIOS-e820: 000000005ffff000 - 0000000060000000 (ACPI NVS)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
639MB HIGHMEM available.
896MB LOWMEM available.
ACPI: have wakeup address 0xc0001000
On node 0 totalpages: 393212
zone(0): 4096 pages.
zone(1): 225280 pages.
zone(2): 163836 pages.
ACPI: RSDP (v000 ASUS ) @ 0x000f5810
ACPI: RSDT (v001 ASUS P4S8X 0x42302e31 MSFT 0x31313031) @ 0x5fffc000
ACPI: FADT (v001 ASUS P4S8X 0x42302e31 MSFT 0x31313031) @ 0x5fffc0c0
ACPI: BOOT (v001 ASUS P4S8X 0x42302e31 MSFT 0x31313031) @ 0x5fffc030
ACPI: MADT (v001 ASUS P4S8X 0x42302e31 MSFT 0x31313031) @ 0x5fffc058
ACPI: DSDT (v001 ASUS P4S8X 0x00001000 MSFT 0x0100000b) @ 0x00000000
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 Pentium 4(tm) XEON(tm) APIC version 16
ACPI: LAPIC_NMI (acpi_id[0x00] polarity[0x1] trigger[0x1] lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] global_irq_base[0x0])
IOAPIC[0]: Assigned apic_id 2
IOAPIC[0]: apic_id 2, version 128, address 0xfec00000, IRQ 0-23
ACPI: INT_SRC_OVR (bus[0] irq[0x0] global_irq[0x2] polarity[0x0] trigger[0x1])
ACPI: INT_SRC_OVR (bus[0] irq[0x9] global_irq[0x14] polarity[0x3] trigger[0x3])
Using ACPI (MADT) for SMP configuration information
Kernel command line: auto BOOT_IMAGE=linux ro root=301 hdc=ide-scsiide_setup: hdc=ide-scsi
Initializing CPU#0
Detected 2400.104 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 4784.12 BogoMIPS
Memory: 1551952k/1572848k available (1175k kernel code, 20508k reserved, 453k data, 108k init, 655344k highmem) Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 131072 (order: 7, 524288 bytes)
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 3febfbff 00000000 00000000 00000000 CPU: Common caps: 3febfbff 00000000 00000000 00000000 CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 04
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, 2-21, 2-22, 2-23 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 17.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02 ....... : Delivery Type: 0 ....... : LTS : 0 .... register #01: 00178080 ....... : max redirection entries: 0017 ....... : PRQ implemented: 1 ....... : IO APIC version: 0080
An unexpected IO-APIC was found. If this kernel release is less than three months old please report this to [email protected] .... register #02: 02000000
....... : arbitration: 02
.... register #03: 00000001
....... : Boot DT : 1
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00 01 001 01 0 0 0 0 0 1 1 39 02 001 01 0 0 0 0 0 1 1 31 03 001 01 0 0 0 0 0 1 1 41 04 001 01 0 0 0 0 0 1 1 49 05 001 01 0 0 0 0 0 1 1 51 06 001 01 0 0 0 0 0 1 1 59 07 001 01 0 0 0 0 0 1 1 61 08 001 01 0 0 0 0 0 1 1 69 09 001 01 0 0 0 0 0 1 1 71 0a 001 01 0 0 0 0 0 1 1 79 0b 001 01 0 0 0 0 0 1 1 81 0c 001 01 0 0 0 0 0 1 1 89 0d 001 01 0 0 0 0 0 1 1 91 0e 001 01 0 0 0 0 0 1 1 99 0f 001 01 0 0 0 0 0 1 1 A1 10 000 00 1 0 0 0 0 0 0 00 11 000 00 1 0 0 0 0 0 0 00 12 000 00 1 0 0 0 0 0 0 00 13 000 00 1 0 0 0 0 0 0 00 14 001 01 1 1 0 1 0 1 1 71 15 000 00 1 0 0 0 0 0 0 00 16 000 00 1 0 0 0 0 0 0 00 17 000 00 1 0 0 0 0 0 0 00
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ5 -> 0:5
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9-> 0:20
IRQ10 -> 0:10
IRQ11 -> 0:11
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 2400.2145 MHz.
..... host bus clock speed is 133.3451 MHz.
cpu: 0, clocks: 1333451, slice: 666725 CPU0<T0:1333440,T1:666704,D:11,S:666725,C:1333451>
mtrr: v1.40 (20010327) Richard Gooch ([email protected])
mtrr: detected mtrr type: Intel
ACPI: Subsystem revision 20030813
PCI: PCI BIOS revision 2.10 entry at 0xf11b0, last bus=1
PCI: Using configuration type 1
IOAPIC[0]: Set PCI routing entry (2-20 -> 0xa9 -> IRQ 20 Mode:1 Active:1)
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: System [ACPI] (supports S0 S1 S4 S5)
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 10 11 12 14 15, enabled at IRQ 9)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15, enabled at IRQ 9)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15, enabled at IRQ 9)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15, enabled at IRQ 9)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 15, enabled at IRQ 9)
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI1._PRT]
PCI: Probing PCI hardware
IOAPIC[0]: Set PCI routing entry (2-16 -> 0xb1 -> IRQ 16 Mode:1 Active:1) 00:00:02[A] -> 2-16 -> IRQ 16
IOAPIC[0]: Set PCI routing entry (2-17 -> 0xb9 -> IRQ 17 Mode:1 Active:1) 00:00:02[B] -> 2-17 -> IRQ 17
IOAPIC[0]: Set PCI routing entry (2-18 -> 0xc1 -> IRQ 18 Mode:1 Active:1) 00:00:02[C] -> 2-18 -> IRQ 18
IOAPIC[0]: Set PCI routing entry (2-19 -> 0xc9 -> IRQ 19 Mode:1 Active:1) 00:00:02[D] -> 2-19 -> IRQ 19
IOAPIC[0]: Set PCI routing entry (2-21 -> 0xd1 -> IRQ 21 Mode:1 Active:1) 00:00:03[B] -> 2-21 -> IRQ 21
IOAPIC[0]: Set PCI routing entry (2-22 -> 0xd9 -> IRQ 22 Mode:1 Active:1) 00:00:03[C] -> 2-22 -> IRQ 22
IOAPIC[0]: Set PCI routing entry (2-23 -> 0xe1 -> IRQ 23 Mode:1 Active:1) 00:00:03[D] -> 2-23 -> IRQ 23
Pin 2-19 already programmed
Pin 2-16 already programmed
Pin 2-17 already programmed
Pin 2-18 already programmed
Pin 2-17 already programmed
Pin 2-18 already programmed
Pin 2-19 already programmed
Pin 2-16 already programmed
Pin 2-18 already programmed
Pin 2-19 already programmed
Pin 2-16 already programmed
Pin 2-17 already programmed
Pin 2-19 already programmed
Pin 2-16 already programmed
Pin 2-17 already programmed
Pin 2-18 already programmed
Pin 2-16 already programmed
Pin 2-17 already programmed
Pin 2-18 already programmed
Pin 2-19 already programmed
Pin 2-17 already programmed
Pin 2-18 already programmed
Pin 2-19 already programmed
Pin 2-16 already programmed
Pin 2-19 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
PCI: No IRQ known for interrupt pin A of device 00:03.0
PCI: Using ACPI for IRQ routing
PCI: if you experience problems, try using option 'pci=noacpi' or even 'acpi=off'
Signature · 1 line
Eric C. Cooper e c c @ c m u . e d u