Re: Port of 3c575_cb to 2.3.43pre8

[=?iso-8859-1?Q?Jakob_=D8stergaard?=]

On Sun, Feb 13, 2000 at 05:44:55PM -0500, Jeff Garzik wrote:
> > Since my previous mail seems to have been eaten by something
> > on it's way to linux-kernel, I'm resending:
> > 
> > If you have the time, please test the following, which is a
> > port of the 3c575_cb driver to the 2.3.43pre8 kernel.
> > 
> > It's not completely stable for me, but it is as stable as the
> > driver has ever been, most likely because of my crappy notebook
> > playing silly tricks with me.
> 
> 
> Can you try out 2.3.45-pre2 and let me know if you have problems?
> 
> I ported 3c575_cb but used my own changes not your patch (which I did
> received via linux-kernel).

Your patch is better than mine. The card can now recover from when an
interrupt doesn't get delivered, and when the Tx queue fills.

Still, the card will choke on a FTP transfer, while ping -f works just
fine (with small packets).  This is if I run it on IRQ7.

On IRQ9, the machine will lock up immediately after the ifup (which 
involves a DHCP query which does succeed however). Using sysrq I can
see that the EIP loops around <c3012e8a>, an address in the 3c575 driver
(it's the only module loaded).  I can't see where in the code that
address would be though, using ksyms gets me nowhere (the address refers
to a point near a data structure, not to anywhere near real code).

IRQ9 usually works, but gives me the ``suprious interrupt on IRQ7'' error.
IRQ7 with the new driver works the best, but still far from perfect.

Is this a good indication that I should go see my vendor and eventually
beat him up with the notebook, or could the spurious interrupt on IRQ7 be
a kernel issue ?   It does happen both on 2.2 and 2.3 though...

As a side note, the card doesn't come up on boot as it does in 2.2.X.
I have to plug it out and re-insert it, then ifup it.  But I guess that's
Yenta related and not a 3c575_cb.c issue.

Thanks,
-- 
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