Re: [PATCH tip/core/rcu 07/10] rcu: Prevent dyntick-idle until ksoftirqd has been spawned

2021-03-11 Thread Paul E. McKenney
On Fri, Mar 12, 2021 at 12:23:57AM +0100, Frederic Weisbecker wrote: > On Wed, Mar 03, 2021 at 04:00:16PM -0800, paul...@kernel.org wrote: > > From: "Paul E. McKenney" > > > > After interrupts have enabled at boot but before some random point > > in early_initcall() processing, softirq

Re: [PATCH tip/core/rcu 07/10] rcu: Prevent dyntick-idle until ksoftirqd has been spawned

2021-03-11 Thread Frederic Weisbecker
On Wed, Mar 03, 2021 at 04:00:16PM -0800, paul...@kernel.org wrote: > From: "Paul E. McKenney" > > After interrupts have enabled at boot but before some random point > in early_initcall() processing, softirq processing is unreliable. > If softirq sees a need to push softirq-handler invocation to

[PATCH tip/core/rcu 07/10] rcu: Prevent dyntick-idle until ksoftirqd has been spawned

2021-03-03 Thread paulmck
From: "Paul E. McKenney" After interrupts have enabled at boot but before some random point in early_initcall() processing, softirq processing is unreliable. If softirq sees a need to push softirq-handler invocation to ksoftirqd during this time, then those handlers can be delayed until the