rcu.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org, rcu@vger.kernel.org,
	linux-rt-users@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Steven Rostedt <rostedt@goodmis.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Frederic Weisbecker <frederic@kernel.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Davidlohr Bueso <dave@stgolabs.net>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 0/2] rcutorture: Some PREEMPT_RT fixlets
Date: Tue,  3 Aug 2021 23:54:35 +0100	[thread overview]
Message-ID: <20210803225437.3612591-1-valentin.schneider@arm.com> (raw)

Hi folks,

I've been meaning to run RCU torture under v5.13-rt1 to validate my hacking
around the RCU offloaded state [1], but have hit some warnings.


The second patch clearly isn't a thing of beauty, but FWIW it lets me run RCU
torture tests without any extra steps.

As mentioned over IRC, this started as a .setup() callback for the kosftirqd
threads gated behind CONFIG_RCU_BOOST && CONFIG_RCU_TORTURE_TEST, but I figured
keeping RCU torture specific stuff within rcutorture.c would be a tad smarter.
I hate either version, but here it is regardless.

[1]: https://lore.kernel.org/lkml/20210728220137.GD293265@lothringen/

Cheers,
Valentin

Valentin Schneider (2):
  rcutorture: Don't disable softirqs with preemption disabled when
    PREEMPT_RT
  rcutorture: Nudge ksoftirqd priority for RCU boost testing

 kernel/rcu/rcutorture.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--
2.25.1


             reply	other threads:[~2021-08-03 22:54 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 22:54 Valentin Schneider [this message]
2021-08-03 22:54 ` [PATCH 1/2] rcutorture: Don't disable softirqs with preemption disabled when PREEMPT_RT Valentin Schneider
2021-08-03 23:43   ` Paul E. McKenney
2021-08-04 10:17     ` Valentin Schneider
2021-08-04 22:37       ` Paul E. McKenney
2021-08-03 22:54 ` [PATCH 2/2] rcutorture: Nudge ksoftirqd priority for RCU boost testing Valentin Schneider
2021-08-03 23:42   ` Paul E. McKenney
2021-08-04 10:18     ` Valentin Schneider
2021-08-04 22:53       ` Paul E. McKenney
2021-08-05 11:51         ` Valentin Schneider
2021-08-05 16:10           ` Paul E. McKenney

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210803225437.3612591-1-valentin.schneider@arm.com \
    --to=valentin.schneider@arm.com \
    --cc=bristot@redhat.com \
    --cc=dave@stgolabs.net \
    --cc=frederic@kernel.org \
    --cc=jiangshanlai@gmail.com \
    --cc=joel@joelfernandes.org \
    --cc=josh@joshtriplett.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rt-users@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mingo@kernel.org \
    --cc=paulmck@kernel.org \
    --cc=peterz@infradead.org \
    --cc=rcu@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    --cc=tglx@linutronix.de \
    --subject='Re: [PATCH 0/2] rcutorture: Some PREEMPT_RT fixlets' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).