Orinoco testing + ARM (Byte-alignment problems, it seems)
proski at gnu.org
Wed Apr 17 10:12:26 EST 2002
> Have you done any lengthy tests...like 24hours+? I had a .9 driver
> working good enough to last for about 24 hours before screwing up,
> I may have to revert back to that one.
No. I tried 10000 packets, which took about 1 minute. It's another sign
that we are dealing with a race condition.
> > I'm getting this on ARM only with one particular card with Intersil
> > firmware (ZCOMAX AirRunner/XI-300) and only once, when the card is
> > inserted. I haven't seen this message on i386, but I cannot test that
> > card on i386 - it has a compact flash connector that's too thick for the
> > PCMCIA adaptor.
> Ugggh, I'm using a XI-800 or something like that CF card.
Actually I wrote "ZCOMAX AirRunner/XI-300" because it's the listing in
/etc/pcmcia/config for its manufacturer ID. Actually it's an unnamed (and
product info: " ", "IEEE 802.11 Wireless LAN/PC Card", ""
manfid: 0xd601, 0x0002
function: 6 (network)
> What CF cards have you had good luck with on ARM?
This one and Symbol Spectrum24. But you will need a separate driver for
Spectrum24 - it needs firmware download every time it's inserted. The
driver is (temporarily) on my homepage:
> > Since the problem with the driver seems to show up differently, it's more
> > likely to be a race than an alignment problem.
> I'm beginning to think maybe tcpdump has alignment issues instead of
> the driver.
> It is my opinion that we should make all structs passed through ioctls
> be 4-byte aligned with no implicit padding (make all padding explicit).
I'm afraid it's too late. PCMCIA utilities and the kernel can be compiled
separately and should always work together.
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