You mixed two different driver models, that's reason of lockup.Quote:> /* disable interrupts here is necessary!
> * We need to ensure Rx/RxNobuf ints are disabled if in poll
> * flag is set. If interrupt comes bw* netif_rx_complete
> * and enable_rx_and_rxnobuf_ints, the following will happen:
> * netif_rx_complete --> clear RX_SCHED flag
> * -> ints(e.g. TxDone)
> * speedo_interrupt
> * if (netif_rx_schedule_prep(dev))
> * disable_rx_and_rxnobuf_ints
> * return
> * <-
> * enable_rx_and_rxnobuf_ints
> * then we will have Rx&RxNoBuf ints enable while in polling!
> * it may lead to endless interrupts and effective lockup of
> * the whole machine.
You must ACK irq in interrupt handler in some way.
Tulip really does trick with deferring ack to poll routine,
but it pays for this _masking_ irq each interrupt instead, which also
drops irq line. See?
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