uh-no, its just the first time I have done any coding for a platform
that is actually known to be portable to some extent :-)
I have got some nice suggestions, including yours, that I will make
good use of.
> BTW, just for sanity check, where did these addresses "global_pci_memaddr"
> come from? They were read using pcibios_read_config_dword, right?
>
> > I have tried changing compiler (to gcc 2.7.2.3), changing the
> > modem board with one that works with my WinNT driver, adding
> > udelay(60) between accesses, using readb() instead of direct access -
> > no change.
>
> Silly question, but as Jeff suggested, when you tried readb you also tried
> writeb, yes? :-)
Yup :)
After a few talks Jeff suggested to try using mb(); and wmb();
Doing this removed my problem. However I do not understand
completely. If the CPU just rarranged the order of the instructions
it would not freeze, just produce wrong results. So - did the
processor put two instructions - one dependent of the other into each
their pipeline, ignoring their relation, or what? That's a very odd
thing to do... BTW, I am using an AMD K6-III.
I have got several good suggestions of how to make the code more
platform independent that I will make good use of, as I plan to make
this driver the skeleton for future drivers as well.
I enjoy Linux a great deal after having spent some time in NDIS Hell
-a place I will never return to.
Thanks guys.
--
Best regards, Klaus.
----------------------------------------------------
Klaus J. O. Nielsen
System Engineer, COCOM A/S, www.cocom.dk
Personal web: http://www.zorland.dk/jimbo
PGP public key: http://www.zorland.dk/jimbo/kjn.asc
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