[2.5.53] unexpected IO-APIC

[2.5.53] unexpected IO-APIC

[Paul Rolland]

Hello,

This was "asked" by the kernel at boot time :
 WARNING: unexpected IO-APIC, please mail
          to linux-smp@vger.kernel.org

So, here is the result of dmesg :

CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU:     After generic, caps: 3febfbff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU#0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU#0: Thermal monitoring enabled
Machine check exception polling timer started.
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
 WARNING: unexpected IO-APIC, please mail
          to linux-smp@vger.kernel.org
.... register #02: 02000000
.......     : arbitration: 02
.... 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 2423.0430 MHz.
..... host bus clock speed is 134.0634 MHz.

Should you need more details, please ask !

Regards,
Paul Rolland, rol@as2917.net