A bit more info: The problem is on the USB side I think. The zd1211
driver calls usb_submit_urb and sets a flag. This is when packet info
is send to the network code. The zd1211 driver then waits for the bit
to get cleared in a callback from the kernel before it sends the next
packet data. In my case, the bit never (ever) gets cleared once which
jams up everything. Eventually, the network code watchdog signals a
timeout and and calls the timeout routine in the zd1211 driver which
kind of resets things, but the next call to usb_submit_urb fails
(ENOMEM) which I guess is caused by the initial call never returning.
Any ideas why the usb code gets jammed? I will try older kernels now
that I don't think the problem is in the wireless driver
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