On Wed, 2021-12-15 at 17:06 +0100, Sebastian Andrzej Siewior wrote: > > What is the context for netpoll_send_skb()? Why do we need to disable BH > + RCU on RT? Because rcu_dereference_bh() says it better be, but.. > If interrupts are never disabled, doesn't this break the assumption made > in netpoll_tx_running()? > > queue_process() is also busted. ..that makes it kinda moot, and wasn't unexpected. It works, or at least netconsole does, and lockdep was fine with it, but I figured it unlikely to fly. In fact, I had already taken the silence as a "Surely you jest" or such. -Mike
