Timur Tabi wrote:
The hang occurs with this loop in napi_disable(): while (test_and_set_bit(NAPI_STATE_SCHED, &n->state)) msleep(1); This loop never exits. Can you give me a clue as to what could be the reason?I figured it out. I cannot call napi_disable() twice in a row. It's not smart enough to know that NAPI is already disabled.
I realized that I was going about this the wrong way. Rather than try to protect the setting of adpt->rxbuf_size, I instead just calculate that value when RX path is configured, which is much cleaner. This ensures that adpt->rxbuf_size is changed only when the interface is down.
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