An unexpected IO-APIC was found

Andreas Schenk <[email protected]> Sat, 18 Mar 2006 11:23:11 +0100
Newsgroups org.kernel.vger.linux-smp
Message-ID <[email protected]>
Hi,

although my kernel release is more than three months old, I dare to send this 
report, since it might nevertheless be of some value. I do not understand 
what it is about, though, but I do know a little about APIC. 

If it is not too much, please let me know, if this mail is of some value and 
-- if this is still not too much -- give me some explanation, or a link.

Thanks

Andreas Schenk

I have SuSE linux 9.0, with kernel 

<4>Linux version 2.4.21-273-smp4G (root@dilbert) (gcc-Version 3.3.1 (SuSE 
Linux)) #1 SMP So Apr 10 10:58:58 CEST 2005

[...]

<4>ENABLING IO-APIC IRQs
<7>init IO_APIC IRQs
<7> IO-APIC (apicid-pin) 2-0, 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22, 2-23 
not connected.
<6>..TIMER: vector=0x31 pin1=2 pin2=0
<7>number of MP IRQ sources: 16.
<7>number of IO-APIC #2 registers: 24.
<6>testing the IO APIC.......................
<4>
<7>IO APIC #2......
<7>.... register #00: 02000000
<7>.......    : physical APIC id: 02
<7>.......    : Delivery Type: 0
<7>.......    : LTS          : 0
<7>.... register #01: 00178020
<7>.......     : max redirection entries: 0017
<7>.......     : PRQ implemented: 1
<7>.......     : IO APIC version: 0020
<7>.... register #02: 00178020
<7>.......     : arbitration: 00
<4>An unexpected IO-APIC was found. If this kernel release is less than
<4>three months old please report this to [email protected]
<7>.... IRQ redirection table:
<7> NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:   
<7> 00 000 00  1    0    0   0   0    0    0    00
<7> 01 003 03  0    0    0   0   0    1    1    39
<7> 02 003 03  0    0    0   0   0    1    1    31
<7> 03 003 03  0    0    0   0   0    1    1    41
<7> 04 003 03  0    0    0   0   0    1    1    49
<7> 05 003 03  0    0    0   0   0    1    1    51
<7> 06 003 03  0    0    0   0   0    1    1    59
<7> 07 003 03  0    0    0   0   0    1    1    61
<7> 08 003 03  0    0    0   0   0    1    1    69
<7> 09 003 03  1    1    0   0   0    1    1    71
<7> 0a 003 03  0    0    0   0   0    1    1    79
<7> 0b 003 03  0    0    0   0   0    1    1    81
<7> 0c 003 03  0    0    0   0   0    1    1    89
<7> 0d 003 03  0    0    0   0   0    1    1    91
<7> 0e 003 03  0    0    0   0   0    1    1    99
<7> 0f 003 03  0    0    0   0   0    1    1    A1
<7> 10 000 00  1    0    0   0   0    0    0    00
<7> 11 000 00  1    0    0   0   0    0    0    00
<7> 12 000 00  1    0    0   0   0    0    0    00
<7> 13 000 00  1    0    0   0   0    0    0    00
<7> 14 000 00  1    0    0   0   0    0    0    00
<7> 15 000 00  1    0    0   0   0    0    0    00
<7> 16 000 00  1    0    0   0   0    0    0    00
<7> 17 000 00  1    0    0   0   0    0    0    00
<7>IRQ to pin mappings:
<7>IRQ0 -> 0:2
<7>IRQ1 -> 0:1
<7>IRQ3 -> 0:3
<7>IRQ4 -> 0:4
<7>IRQ5 -> 0:5
<7>IRQ6 -> 0:6
<7>IRQ7 -> 0:7
<7>IRQ8 -> 0:8
<7>IRQ9 -> 0:9
<7>IRQ10 -> 0:10
<7>IRQ11 -> 0:11
<7>IRQ12 -> 0:12
<7>IRQ13 -> 0:13
<7>IRQ14 -> 0:14
<7>IRQ15 -> 0:15
<6>.................................... done.

[...]