Re: Unexpected IO-APIC...

Iuri Wickert wrote:
> Hello
>
> My motherboard is an ECS741GX-M. The dmesg output and
> kernel config file are listed below. Hope it helps.

These messages are informational only, they don't represent a
problem when taken alone.

More info:

Several of these messages have been "fixed"
in later versions of 2.4 and eliminated in Linux 2.6.
They are informational only and don't affect the operations of Linux.

They come from Linux having a known-valid list of IO APIC devices
and that list not being updated very often (hence the message
removal in Linux 2.6).


> ----- dmesg -------
> Linux version 2.4.29 (root@Division) (gcc version
> 3.3.4) #1 Sun Mar 13 14:27:49 BRT 2005
> BIOS-provided physical RAM map:
>  BIOS-e820: 0000000000000000 - 000000000009f800
> (usable)
>  BIOS-e820: 000000000009f800 - 00000000000a0000
> (reserved)
>  BIOS-e820: 00000000000f0000 - 0000000000100000
> (reserved)
>  BIOS-e820: 0000000000100000 - 000000000dff0000
> (usable)
>  BIOS-e820: 000000000dff0000 - 000000000dff3000 (ACPI
> NVS)
>  BIOS-e820: 000000000dff3000 - 000000000e000000 (ACPI
> data)
>  BIOS-e820: 00000000fec00000 - 00000000fec01000
> (reserved)
>  BIOS-e820: 00000000fee00000 - 00000000fee01000
> (reserved)
>  BIOS-e820: 00000000ffff0000 - 0000000100000000
> (reserved)
> 223MB LOWMEM available.
> found SMP MP-table at 000f57a0
> hm, page 000f5000 reserved twice.
> hm, page 000f6000 reserved twice.
> hm, page 000f0000 reserved twice.
> hm, page 000f1000 reserved twice.
> On node 0 totalpages: 57328
> zone(0): 4096 pages.
> zone(1): 53232 pages.
> zone(2): 0 pages.
> ACPI: RSDP (v000 AWARD                                
>     ) @ 0x000f7170
> ACPI: RSDT (v001 AWARD  AWRDACPI 0x42302e31 AWRD
> 0x00000000) @ 0x0dff3000
> ACPI: FADT (v001 AWARD  AWRDACPI 0x42302e31 AWRD
> 0x00000000) @ 0x0dff3040
> ACPI: MADT (v001 AWARD  AWRDACPI 0x42302e31 AWRD
> 0x00000000) @ 0x0dff69c0
> ACPI: DSDT (v001 AWARD  AWRDACPI 0x00001000 MSFT
> 0x0100000e) @ 0x00000000
> ACPI: Local APIC address 0xfee00000
> ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> Processor #0 Pentium(tm) Pro APIC version 16
> ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
> ACPI: IOAPIC (id[0x02] address[0xfec00000]
> global_irq_base[0x0])
> IOAPIC[0]: Assigned apic_id 2
> IOAPIC[0]: apic_id 2, version 20, address 0xfec00000,
> IRQ 0-23
> ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl
> dfl)
> ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 dfl
> dfl)
> Using ACPI (MADT) for SMP configuration information
> Kernel command line: BOOT_IMAGE=Linux ro root=303
> Initializing CPU#0
> Detected 1496.261 MHz processor.
> Console: colour dummy device 80x25
> Calibrating delay loop... 2988.44 BogoMIPS
> Memory: 224620k/229312k available (1050k kernel code,
> 4304k reserved, 414k data, 112k 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: 64K (64 bytes/line), D cache 64K (64
> bytes/line)
> CPU: L2 Cache: 256K (64 bytes/line)
> Intel machine check architecture supported.
> Intel machine check reporting enabled on CPU#0.
> CPU:     After generic, caps: 0383fbff c1cbfbff
> 00000000 00000000
> CPU:             Common caps: 0383fbff c1cbfbff
> 00000000 00000000
> CPU: AMD Sempron(tm)   2200+ 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 1496.2463 MHz.
> ..... host bus clock speed is 332.4992 MHz.
> cpu: 0, clocks: 3324992, slice: 1662496
> CPU0<T0:3324992,T1:1662496,D:0,S:1662496,C:3324992>
> mtrr: v1.40 (20010327) Richard Gooch
> (rgooch@xxxxxxxxxxxxx)
> mtrr: detected mtrr type: Intel
> ACPI: Subsystem revision 20040326
> PCI: PCI BIOS revision 2.10 entry at 0xfb4e0, last
> bus=1
> 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)
> ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._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) *0, disabled.
> 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 [LNKG] (IRQs 3 4 5 6 7 *9 10
> 11 12 14 15)
> ACPI: PCI Interrupt Link [LNKH] (IRQs *3 4 5 6 7 9 10
> 11 12 14 15)
> PCI: Probing PCI hardware
> 00:00:09[A] -> 2-17 -> IRQ 17 level low
> 00:00:09[B] -> 2-18 -> IRQ 18 level low
> 00:00:09[C] -> 2-19 -> IRQ 19 level low
> 00:00:09[D] -> 2-16 -> IRQ 16 level low
> 00:00:03[A] -> 2-20 -> IRQ 20 level low
> 00:00:03[B] -> 2-21 -> IRQ 21 level low
> 00:00:03[C] -> 2-22 -> IRQ 22 level low
> 00:00:03[D] -> 2-23 -> IRQ 23 level low
> number of MP IRQ sources: 15.
> 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: 00178014
> .......     : max redirection entries: 0017
> .......     : PRQ implemented: 1
> .......     : IO APIC version: 0014
> An unexpected IO-APIC was found. If this kernel
> release is less than
> three months old please report this to
> linux-smp@xxxxxxxxxxxxxxx
> .... register #02: 00000000
> .......     : arbitration: 00
> .... 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    1    0   1   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
>  10 001 01  1    1    0   1   0    1    1    C1
>  11 001 01  1    1    0   1   0    1    1    A9
>  12 001 01  1    1    0   1   0    1    1    B1
>  13 001 01  1    1    0   1   0    1    1    B9
>  14 001 01  1    1    0   1   0    1    1    C9
>  15 001 01  1    1    0   1   0    1    1    D1
>  16 001 01  1    1    0   1   0    1    1    D9
>  17 001 01  1    1    0   1   0    1    1    E1
> 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
> IRQ10 -> 0:10
> IRQ11 -> 0:11
> IRQ12 -> 0:12
> IRQ13 -> 0:13
> IRQ14 -> 0:14
> IRQ15 -> 0:15
> IRQ16 -> 0:16
> IRQ17 -> 0:17
> IRQ18 -> 0:18
> IRQ19 -> 0:19
> IRQ20 -> 0:20
> IRQ21 -> 0:21
> IRQ22 -> 0:22
> IRQ23 -> 0:23
> .................................... done.
> PCI: Using ACPI for IRQ routing
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society
> NET3.039
> Initializing RT netlink socket
> Starting kswapd
> vesafb: framebuffer at 0xd8000000, mapped to
> 0xce807000, size 3072k
> vesafb: mode is 1024x768x16, linelength=2048, pages=4
> vesafb: protected mode interface info at c6fd:000c
> vesafb: scrolling: redraw
> vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
> Console: switching to colour frame buffer device
> 128x48
> fb0: VESA VGA frame buffer device
> pty: 256 Unix98 ptys configured
> Uniform Multi-Platform E-IDE driver Revision:
> 7.00beta4-2.4
> ide: Assuming 33MHz system bus speed for PIO modes;
> override with idebus=xx
> SIS5513: IDE controller at PCI slot 00:02.5
> SIS5513: chipset revision 1
> SIS5513: not 100% native mode: will probe irqs later
> SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller
>     ide0: BM-DMA at 0x4000-0x4007, BIOS settings:
> hda:DMA, hdb:pio
>     ide1: BM-DMA at 0x4008-0x400f, BIOS settings:
> hdc:DMA, hdd:DMA
> hda: WDC WD800BB-55JKA0, ATA DISK drive
> blk: queue c02b72c0, I/O limit 4095Mb (mask
> 0xffffffff)
> hdc: LG CD-RW CED-8080B, ATAPI CD/DVD-ROM drive
> hdd: HL-DT-STDVD-ROM GDR8161B, ATAPI CD/DVD-ROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: attached ide-disk driver.
> hda: host protected area => 1
> hda: 156301488 sectors (80026 MB) w/2048KiB Cache,
> CHS=9729/255/63, UDMA(100)
> Partition check:
>  hda: hda1 hda2 hda3
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 2048 buckets, 16Kbytes
> TCP: Hash tables configured (established 16384 bind
> 32768)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Mounted root (ext2 filesystem) readonly.
> Freeing unused kernel memory: 112k freed
> Adding Swap: 96380k swap-space (priority -1)
> Real Time Clock Driver v1.10f
> Intel 810 + AC97 Audio, version 1.01, 14:31:44 Mar 13
> 2005
> i810: SiS 7012 found at IO 0xdc00 and 0xd800, MEM
> 0x0000 and 0x0000, IRQ 18
> i810_audio: Audio Controller supports 6 channels.
> i810_audio: Defaulting to base 2 channel mode.
> i810_audio: Resetting connection 0
> ac97_codec: AC97  codec, id: ALG96 (Unknown)
> i810_audio: only 48Khz playback available.
> i810_audio: AC'97 codec 0 Unable to map surround DAC's
> (or DAC's not present), total channels = 2
> slamr: SmartLink AMRMO modem.
> slamr: probe 1039:7013 SiS630 card...
> slamr: mc97 codec is SIL21
> slamr: slamr0 is SiS630 card.
> ACPI: Processor [CPU0] (supports C1)
> ACPI: Thermal Zone [THRM] (29 C)
> hdc: attached ide-cdrom driver.
> hdc: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache
> Uniform CD-ROM driver Revision: 3.12
> hdd: attached ide-cdrom driver.
> hdd: ATAPI 48X DVD-ROM drive, 256kB Cache
> CSLIP: code copyright 1989 Regents of the University
> of California
> PPP generic driver version 2.4.2
> PPP BSD Compression module registered
> PPP Deflate Compression module registered

--
~Randy
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