Problems using DWL-650H

Jan Rychter jan at
Mon Dec 16 08:30:54 EST 2002

I'm getting errors like:

eth0: Error -110 writing Tx descriptor to BAP
eth0: Error -110 writing Tx descriptor to BAP
eth0: Error -110 writing Tx descriptor to BAP

which a "cardctl eject; cardctl insert" fixes for a while.

Now, this is a known problem (I've reported it before) -- but I wanted
to report some additional data. Perhaps there will be hidden hints

I'm still using 0.11b with the double-reset patch:

  orinoco_cs.c 0.11b (David Gibson <hermes at> and others)
  eth0: Station identity 001f:0002:0002:0001
  eth0: Looks like a Symbol firmware version [V2.51-01] (parsing to 25101)
  eth0: Ad-hoc demo mode supported
  eth0: IEEE standard IBSS ad-hoc mode supported
  eth0: WEP supported, 104-bit key
  eth0: MAC address 00:05:5D:D7:3D:BF
  eth0: Station name "Prism  I"
  eth0: ready
  eth0: index 0x01: Vcc 5.0, irq 3, io 0x0100-0x0147

I've been running a kernel with software suspend for the last month or
so. Now, the networking crashes occur with varying
frequencies. Depending on something the card will either freeze every
4-5 minutes, or work for hours without a crash. This is repeatable
within a suspend/resume or reboot cycle -- e.g. once I boot the system
(or resume), the crashes occur at fairly regular intervals.

It seems that certain "configurations" are more prone to crashes than
others. Could this be related to the layout of buffers in memory or
something else that changes at each power-on? Perhaps the initialization
is not done properly and there is a random factor somewhere?

There is a relation to actual network load -- the bigger the load, the
faster the crash occurs -- but it's a weak relation, weaker than the
above symptoms. Putting a big load on the card might either crash it in
minutes or keep it running for half an hour, depending on the system

I don't know whether this helps any. I'm getting desperate, because
sometimes I get repeatable crashes every 3-4 minutes. It makes the card
nearly unusable.


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