Elitegroup L7VTA (VIA KT400): Unexpected IO-APIC

Elitegroup L7VTA (VIA KT400): Unexpected IO-APIC

[Nicolai Haehnle]

Hi,

I'm trying to get Linux to run on an Elitegroup L7VTA mainboard with an 
Athlon XP 2400+ CPU. The mainboard uses the VIA KT400 chipset. 
I've tried various kernels from the 2.4.x series, up to 2.4.21-pre4. All 
kernels (it doesn't even matter whether they're SMP or not) complain about 
an unexpected IO-APIC as long as any form of APIC support is compiled into 
the kernel.

Later, the via-rhine module successfully finds the on-board LAN; however, 
neither sending nor receiving work. This is probably related to the earlier 
APIC problem, because the output of cat /proc/interrupts is rather weird 
(interrupt 16 is assigned when the interface eth0 goes up, i.e. after init 
has started, so apparently no IRQs get through at all):

<----- /proc/interrupts
  0:      21395    IO-APIC-edge  timer
  1:        960    IO-APIC-edge  keyboard
  2:          0          XT-PIC  cascade
 14:      11160    IO-APIC-edge  ide0
 15:          7    IO-APIC-edge  ide1
 16:          0            none  eth0
NMI:          0
LOC:      21348
ERR:          0
MIS:          0
----->


And these are the kernel log messages:

<----- boot messages
Linux version 2.4.21-pre4 (root@deadlights) (gcc version 2.95.4 20011002 
(Debian prerelease)) #1 SMP Sun Feb 23 05:15:44 CET 2003
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
 BIOS-e820: 000000001fff0000 - 000000001fff3000 (ACPI NVS)
 BIOS-e820: 000000001fff3000 - 0000000020000000 (ACPI data)
 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
511MB LOWMEM available.
found SMP MP-table at 000f54f0
hm, page 000f5000 reserved twice.
hm, page 000f6000 reserved twice.
hm, page 000f1000 reserved twice.
hm, page 000f2000 reserved twice.
On node 0 totalpages: 131056
zone(0): 4096 pages.
zone(1): 126960 pages.
zone(2): 0 pages.
Intel MultiProcessor Specification v1.1
    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.
Enabling APIC mode: Flat.^IUsing 1 I/O APICs
Processors: 1
Kernel command line: BOOT_IMAGE=Linux ro root=302
Initializing CPU#0
Detected 1994.361 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 3971.48 BogoMIPS
Memory: 514440k/524224k available (1695k kernel code, 9400k reserved, 535k 
data, 268k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: CLK_CTL MSR was 60031223. Reprogramming to 20031223
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.
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
Intel machine check reporting enabled on CPU#0.
CPU0: AMD Athlon(tm) XP 2400+ stepping 01
per-CPU timeslice cutoff: 731.32 usecs.
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.
..TIMER: vector=0x31 pin1=2 pin2=0
testing the IO APIC.......................

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
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1994.2847 MHz.
..... host bus clock speed is 265.9046 MHz.
cpu: 0, clocks: 2659046, slice: 1329523
CPU0<T0:2659040,T1:1329504,D:13,S:1329523,C:2659046>
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle
PCI: PCI BIOS revision 2.10 entry at 0xfb3a0, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Using IRQ router VIA [1106/3177] at 00:11.0
PCI->APIC IRQ transform: (B0,I13,P0) -> 17
PCI->APIC IRQ transform: (B0,I16,P0) -> 21
PCI->APIC IRQ transform: (B0,I16,P1) -> 21
PCI->APIC IRQ transform: (B0,I16,P2) -> 21
PCI->APIC IRQ transform: (B0,I16,P3) -> 19
PCI->APIC IRQ transform: (B0,I17,P0) -> 11
PCI->APIC IRQ transform: (B0,I17,P2) -> 22
PCI->APIC IRQ transform: (B0,I18,P0) -> 16
PCI->APIC IRQ transform: (B1,I0,P0) -> 16
PCI: Via IRQ fixup for 00:10.0, from 11 to 5
PCI: Via IRQ fixup for 00:10.1, from 12 to 5
PCI: Via IRQ fixup for 00:10.2, from 10 to 5
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
NTFS driver v1.1.22 [Flags: R/O]
Detected PS/2 Mouse Port.
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ 
SERIAL_PCI ISAPNP enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Linux agpgart interface v0.99 (c) Jeff Hartmann
agpgart: Maximum main memory to use for agp memory: 439M
agpgart: Detected Via Apollo Pro KT400 chipset
[drm] Initialized tdfx 1.0.0 20010216 on minor 0
[drm] Initialized radeon 1.1.1 20010405 on minor 1
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 00:11.1
VP_IDE: chipset revision 6
VP_IDE: not 100%% native mode: will probe irqs later
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci00:11.1
    ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xe008-0xe00f, BIOS settings: hdc:DMA, hdd:DMA
hda: WDC WD800BB-00CAA1, ATA DISK drive
hda: DMA disabled
blk: queue c03c7300, I/O limit 4095Mb (mask 0xffffffff)
hdc: SONY DVD-ROM DDU1612, ATAPI CD/DVD-ROM drive
hdd: PHILIPS CDD6911, ATAPI CD/DVD-ROM drive
hdc: DMA disabled
hdd: DMA disabled
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: host protected area => 1
hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=9729/255/63, 
UDMA(100)
hdc: ATAPI 40X DVD-ROM drive, 512kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
hdd: ATAPI 48X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Partition check:
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 >
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
es1371: version v0.32 time 05:16:34 Feb 23 2003
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 32Kbytes
TCP: Hash tables configured (established 16384 bind 21845)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Couldn't find valid RAM disk image starting at 0.
Freeing initrd memory: 788k freed
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 268k freed
Adding Swap: 393552k swap-space (priority -1)
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,2), internal journal
----->


Please e-mail me if you need any more information to track down this 
problem.

cu,
Nicolai