Hi Mark, On 06/04/18 18:22, Mark Rutland wrote: > Digging a bit, I also thing that our ct_user_exit and ct_user_enter > usage is on dodgy ground today. [...] > I think similar applies to SDEI; we don't negotiate with RCU prior to > invoking handlers, which might need RCU. The arch code's __sdei_handler() calls nmi_enter() -> rcu_nmi_enter(), which does a rcu_dynticks_eqs_exit(). Thanks, James
