Re: [PATCH 0/3] tick: Fix softirq related warnings

Paul E. McKenney
2022-02-14T16:29:27Z

On Mon, Feb 14, 2022 at 06:46:59AM +0100, Paul Menzel wrote:
> Dear Frederic,
>
>
> Am 08.02.22 um 17:16 schrieb Frederic Weisbecker:
> > Some cleanups and debug rework.
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> > timers/core
> >
> > HEAD: 18b00369d58da4c73946d5f8ebed8e8c7ade89e2
> >
> > Thanks,
> > Frederic
> > ---
> >
> > Frederic Weisbecker (3):
> > tick/rcu: Remove obsolete rcu_needs_cpu() parameters
> > tick/rcu: Stop allowing RCU_SOFTIRQ in idle
> > lib/irq_poll: Declare IRQ_POLL softirq vector as ksoftirqd-parking safe
> >
> >
> > include/linux/interrupt.h | 11 ++++++++-
> > include/linux/rcutiny.h | 3 +--
> > include/linux/rcutree.h | 2 +-
> > kernel/rcu/tree.c | 3 +--
> > kernel/time/tick-sched.c | 60 ++++++++++++++++++++++++++++++++++-------------
> > 5 files changed, 57 insertions(+), 22 deletions(-)
>
> I tested this series on the IBM S822LC with Ubuntu 20.10 and rcu/dev (commit
> 0ba8896d2fd7 (lib/irq_poll: Declare IRQ_POLL softirq vector as
> ksoftirqd-parking safe)). Running `sudo ppc64_cpu --smt=off` the warnings
> are gone.
>
> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>

I will apply on my next rebase, thank you!

And thanks to Peter and Christophe for chasing this down!

Thanx, Paul