On Mon, 2003-02-24 at 17:00, Michel Lanners wrote:

The NIP in the oops points to ide_mm_inb(); it's trying to read from the
IDE ports. However, the port the new IDE interface got assinged seems to
be 0x100 (see r3: 0x107, which is port_base + IDE_STATUS_OFFSET). This
is of course outside of the range the PCMCIA controller has:

pooh:/etc/ppp# cat /proc/ioports
00000000-007fffff : /pci@f2000000
  00001000-00008fff : PCI CardBus #11
  00009000-000090ff : PCI CardBus #11
00802000-01001fff : /pci@f0000000
  00802400-008024ff : ATI Technologies Inc Rage Mobility M3 AGP 2x
ff7fe000-ffffdfff : /pci@f4000000

So the problem seems to be the PCMCIA code gets the wrong ports for the
PCMCIA card?

No, the ranges above are for cardbus, not pcmcia. pcmcia usually
assign resources outside of this range, and 0x100 looks like a
correct port. I'm not sure what is wrong, I'd say ide_mm_inb is
the wrong set of iops, it should be ide_inb instead (it's IO
port access, not MMIO), now we have to figure out why ide_mm_inb
got a assigned, I suspect ide_cs actually tried to re-use an IDE
slot that was initialized for ide-pmac (which is mmio).

There are various breakage with IDE in pre4, which is why I don't
quite suggest using my bk tree for now, I'm waiting for Alan &
Marcelo to sync all of Alan recent fixes before I really look into
debugging these.

Ben.


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