Re: [Intel-wired-lan] [e1000_netpoll] BUG: sleeping function called from invalid context at kernel/irq/manage.c:110

From: Francois Romieu
Date: Thu Jul 28 2016 - 19:29:30 EST

Eric Dumazet <eric.dumazet@xxxxxxxxx> :
> I would prefer having a definitive advice from Thomas Gleixner and/or
> others if disable_irq() is forbidden from IRQ path.
> As I said, about all netpoll() methods in net drivers use disable_irq()
> so a lot of patches would be needed.

s/about all/many/

There has been a WARN_ONCE(!irqs_disabled() in netpoll_send_skb_on_dev for
quite some time now but it's apparently screened by too many tests to be
effective. :o/