On Wed, 2016-08-24 at 06:07 -0700, Eric Dumazet wrote: > I am afraid you could live lock here on SMP. > > You should make sure you do not loop forever, not assuming cpu is faster > than NIC.
You are protected by the tx_lock spinlock, but this is fragile as you could very well remove this spinlock in the future to get lockless transmit, like many other drivers.
