PCMCIA ethernet under 2.4

[<jo...@so...>]

After getting ADSL I tried 2.4.x again (it wasn't usable before because
serial i/o doesn't considerably work (at least up to 2.4.2)). The kernel
hangs after detecting a PCMCIA card. The problem seems to be interrupt
related; it never reaches the printk line I inserted in apne.c right after
the "ethernet PCMCIA card inserted" printk, which probably means it dies
somewhere in an interrupt handler right after detecting the card.

I tried vmapus-2.4.4 from sourceforge and a self compiled 2.4.5 kernel 
with similar results. I usually didn't get a kernel panic message, and the
heartbeat went on and i could switch virtual consoles and type in them,
but otherwise the machine was unresponsive. Once i got this kind of kernel
panic:

>>>>>>>>>
Total memory = 63MB; using 0kB for hash table (at 00000000)
Linux version 2.4.4 (michdaen@pismo) (gcc version 2.95.4 20010319 (Debian prerelease)) #75 Wed May 9 19:42:16 CEST 2001
Amiga hardware found: [A1200] VIDEO BLITTER AUDIO FLOPPY A1200_IDE KEYBOARD MOUSE
 SERIAL PARALLEL A2000_CLK CHIP_RAM PAULA LISA ALICE_PAL PCMCIA ZORRO 
On node 0 totalpages: 16128
zone(0): 16128 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/hda6 debug=mem video=pm2fb:640x480-75,font:SUN8x16 init=/bin/bash
amiga_enable_irq: Trying to enable auto-vector IRQ 1
amiga_enable_irq: Trying to enable auto-vector IRQ 3
amiga_enable_irq: Trying to enable auto-vector IRQ 4
amiga_enable_irq: Trying to enable auto-vector IRQ 5
amiga_enable_irq: Trying to enable auto-vector IRQ 7
amiga_enable_irq: Trying to enable auto-vector IRQ 2
amiga_enable_irq: Trying to enable auto-vector IRQ 6
APUS: BATs=1, BUS=67MHz, RAM=70ns, PCI bridge=1
time_init: decrementer frequency = 16.671142 MHz
Console: colour dummy device 80x25
Calibrating delay loop... 111.00 BogoMIPS
Memory: 60572k available (1708k kernel code, 808k data, 264k init, 0k highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
apus_pcibios_fixup: PCI mem resource requested
PCI:0:1:0: Resource ef000000-ef01ffff (f=200)
PCI:0:1:0: Resource e0000000-e07fffff (f=200)
PCI:0:1:0: Resource e1000000-e17fffff (f=200)
PCI: Switching off ROM of 00:01.0
Zorro: Probing AutoConfig expansion devices: 1 device
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
Console: switching to colour frame buffer device 80x30
fb0: CVisionPPC/BVisionPPC (Permedia2), using 8192K of video memory.
fb1: Amiga AGA frame buffer device, using 1280K of video memory
clgen: Driver for Cirrus Logic based graphic boards, v1.9.8
 Couldn't find PCI device
pty: 256 Unix98 ptys configured
Generic RTC Driver v1.02
block: queued sectors max/low 40112kB/13370kB, 128 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ide0: Gayle IDE interface (A1200 style)
hda: FUJITSU MPC3043AT, ATA DISK drive
ide0 at 80da0000 on irq 0x0000000c
hda: 8448300 sectors (4326 MB), CHS=8940/15/63
Partition check:
 hda: RDSK hda1 hda2 hda3 hda4 hda5 hda6 hda7 hda8 hda9 hda10 hda11
FD: probing units
found <5>fd: drive 0 didn't identify, setting default ffffffff
fd0 
Looking for PCMCIA ethernet card : ethernet PCMCIA card inserted
NIP: C001678C XER: 20000000 LR: C0016788 SP: C3EF7D50 REGS: c3ef7ca0 TRAP: 0500
MSR: 00009072 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c3ef6000[1] 'swapper' Last syscall: 120 
last math 00000000 last altivec 00000000
GPR00: 00000000 C3EF7D50 C3EF6000 00009072 00000009 00000001 0000001B 00000008 
GPR08: 00000050 C02A0000 80DA9000 C029FCE0 24882029 76267C20 760C2138 3C8A4A00 
GPR16: 10101010 11111111 12121212 13131313 00001072 79EF7D70 00000000 C0003E5C 
GPR24: C0004CB8 19191919 1A1A1A1A 00000000 C01606E4 FFFFFFFE 00000008 00000001 
<<<<<<<<<


The apne driver works fine under 2.2 kernels. I tried three ethernet
cards: a 3Com Etherlink III, a TARGET 10/100mbs card, and a Pretec 10mbs
card which was the only one I got working. For 3Com it is natural as
it's not NE2k compatible, but the TARGET card claims to be 100% NE
compatible. It didn't work under AmigaOS with cnet.device either.


  Jouko