Re: NE2000 lockup in 2.0.0?

Wolfgang Jung (woju@keep.in-berlin.de)
Fri, 14 Jun 1996 12:50:04 +0200 (MET DST)


#
#The 2.0.0 kernel works quite well, but I just had one lockup.
#I suspect that it might be caused by my cheap old NE2000 clone
#(Genius GE-2000, built in 1993, a fairly large card with many
#chips on it, not one of these new single-chip cards).
#
#The card has two LEDs on the back: a green one for "power on" and
#a red one for "network activity". The system locked up solid, no
#messages, no VC switching. There was only very little network
#activity at that time. I suspect the card because NE2000 clones
#were known to cause problems in the past, and the red LED on the
#card (which is normally flashing randomly) was illuminated all
#the time (even after disconnecting the T connector from the card).
#
#Note that it happened once so far (it worked fine for several
#days with various 1.99.x kernels as well as 2.0.0), so it could
#just be a random hardware problem. Especially since I run my
#ISA bus at 40/3 = 13.3 MHz (is it possible for a NE2000 to lock
#up because of too fast ISA bus speed?).
#
#I'm reporting it just in case it turns out to be a real bug...
#Or is the NE2000 such a bad design that it is impossible to
#guarantee no lockups no matter how careful is the driver?

Since the real NE2000 as I know them were constructed with a 8390 as the
kernel (WD80X3 are similar) part, at last the one I have (with a real 8390)
works real nicely :-). Many Verndors have bullt clones which have been
bad designed and did the described lookups in the past. Normaly they run OK
beneath DOS(But who needs that ....) But some won't even do that. (We have one
of those running with DOS & KA9Q, which loses the Ethernet quite often und was
unable to handle Warmboots sufficiently enough.
So better throw the NE2000 away and buy a new one from a different Vendor or
I like thgem a WD80X3 comp Card(uses shared MEM for packets), or a 3c509,
which is OL too.

Gruss
Wolfgang