unexpected IO-APIC report

unexpected IO-APIC report

[brmiller]

I have noticed that the 2.4.21 kernel generate the message

   An unexpected IO-APIC was found. If this kernel release is less than
   three months old please report this to linux-smp@vger.kernel.org

on my new Toshiba P25-S507 laptop.  I'm including the dmesg output
from my last boot.  Kernel in this case is 2.4.21-0.25mdksmp, a
Mandrake-supplied kernel.  I have also used the UP kernel of the
same version, with the same results.

I haven't hand-built my own kernel, because this one does me just
fine and it hasn't been worth the effort.  If I can assist in any
type of debugging, let me know.

Brendan

Unexpected IO-APIC report

[Lard]

G'day,

Following is section from dmesg highlighting an unexpected IO-APIC
report requesting an e-mail to your goodselves. I've included a bit more
of the dmesg than strictly necessary as it may be of some use. The
kernel was built without CONFIG_SMP but with CONFIG_X86_UP_APIC and
CONFIG_X86_UP_IOAPIC.

Cheers

Lard.




Linux version 2.4.19 (lard@lardnew) (gcc version 2.96 20000731 (Red Hat
Linux 7.1 2.96-81)) #4 Wed Jan 1 15:01:04 GMT 2003
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 0000000005ff0000 (usable)
 BIOS-e820: 0000000005ff0000 - 0000000005ff3000 (ACPI NVS)
 BIOS-e820: 0000000005ff3000 - 0000000006000000 (ACPI data)
 BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
95MB LOWMEM available.
found SMP MP-table at 000f6660
hm, page 000f6000 reserved twice.
hm, page 000f7000 reserved twice.
hm, page 000f1000 reserved twice.
hm, page 000f2000 reserved twice.
On node 0 totalpages: 24560
zone(0): 4096 pages.
zone(1): 20464 pages.
zone(2): 0 pages.
Intel MultiProcessor Specification v1.4
    Virtual Wire compatibility mode.
OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
Processor #0 Pentium(tm) Pro APIC version 17
I/O APIC #2 Version 17 at 0xFEC00000.
Processors: 1
Kernel command line: auto BOOT_IMAGE=test ro root=308
BOOT_FILE=/boot/vmlinuz-2.4.19 idebus=66
ide_setup: idebus=66
Initializing CPU#0
Detected 1312.957 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 2621.44 BogoMIPS
Memory: 94816k/98240k available (1168k kernel code, 3036k reserved, 319k
data, 236k init, 0k highmem)
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
Mount-cache hash table entries: 2048 (order: 2, 16384 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
CPU: Before vendor init, caps: 0383fbff c1cbfbff 00000000, vendor = 2
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 64K (64 bytes/line)
CPU: After vendor init, caps: 0383fbff c1cbfbff 00000000 00000000
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 Duron(tm) processor 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
Setting 2 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 2 ... ok.
init IO_APIC IRQs
 IO-APIC (apicid-pin) 2-0, 2-5, 2-9, 2-18, 2-19, 2-20, 2-23 not
connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 21.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................

IO APIC #2......
.... register #00: 02000000
.......    : physical APIC id: 02
.... register #01: 00178002
.......     : max redirection entries: 0017
.......     : PRQ implemented: 1
.......     : IO APIC version: 0002
 WARNING: unexpected IO-APIC, please mail
          to linux-smp@vger.kernel.org
.... 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
 05 000 00  1    0    0   0   0    0    0    00
 06 001 01  0    0    0   0   0    1    1    51
 07 001 01  0    0    0   0   0    1    1    59
 08 001 01  0    0    0   0   0    1    1    61
 09 000 00  1    0    0   0   0    0    0    00
 0a 001 01  0    0    0   0   0    1    1    69
 0b 001 01  1    1    0   1   0    1    1    71
 0c 001 01  0    0    0   0   0    1    1    79
 0d 001 01  0    0    0   0   0    1    1    81
 0e 001 01  0    0    0   0   0    1    1    89
 0f 001 01  0    0    0   0   0    1    1    91
 10 001 01  1    1    0   1   0    1    1    99
 11 001 01  1    1    0   1   0    1    1    A1
 12 000 00  1    0    0   0   0    0    0    00
 13 000 00  1    0    0   0   0    0    0    00
 14 000 00  1    0    0   0   0    0    0    00
 15 001 01  1    1    0   1   0    1    1    A9
 16 001 01  1    1    0   1   0    1    1    B1
 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
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ10 -> 0:10
IRQ11 -> 0:11
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ21 -> 0:21
IRQ22 -> 0:22
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1312.9204 MHz.
..... host bus clock speed is 201.9876 MHz.
cpu: 0, clocks: 2019876, slice: 1009938
CPU0<T0:2019872,T1:1009920,D:14,S:1009938,C:2019876>
PCI: PCI BIOS revision 2.10 entry at 0xfb8c0, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
Unknown bridge resource 0: assuming transparent
PCI: Using IRQ router default [1106/3116] at 00:00.0
PCI->APIC IRQ transform: (B0,I5,P0) -> 16
PCI->APIC IRQ transform: (B0,I14,P0) -> 17
PCI->APIC IRQ transform: (B0,I17,P0) -> 11
PCI->APIC IRQ transform: (B0,I17,P3) -> 21
PCI->APIC IRQ transform: (B0,I17,P3) -> 21
PCI->APIC IRQ transform: (B0,I17,P2) -> 22
PCI->APIC IRQ transform: (B1,I0,P0) -> 16
PCI: Via IRQ fixup for 00:11.2, from 11 to 5
PCI: Via IRQ fixup for 00:11.3, from 11 to 5