linux-kernel - [PATCH tip/core/rcu 0/18] Torture-test updates for v5.7

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Date:   Fri, 14 Feb 2020 16:36:34 -0800
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org
Subject: [PATCH tip/core/rcu 0/18] Torture-test updates for v5.7

Hello!

This series contains torture-test updates.

1.	Suppress forward-progress complaints during early boot.

2.	Make results-directory date format completion-friendly.

3.	Refrain from callback flooding during boot.

4.	Forgive -EBUSY from boottime CPU-hotplug operations.

5.	Allow boottime stall warnings to be suppressed.

6.	Suppress boottime bad-sequence warnings.

7.	Allow disabling of boottime CPU-hotplug torture operations.

8.	Add 100-CPU configuration.

9.	Summarize summary of build and run results.

10.	Make kvm-find-errors.sh abort on bad directory.

11.	Fix rcu_torture_one_read()/rcu_torture_writer() data race.

12.	Fix stray access to rcu_fwd_cb_nodelay.

13.	Add READ_ONCE() to rcu_torture_count and rcu_torture_batch.

14.	Annotation lockless accesses to rcu_torture_current.

15.	Measure memory footprint during kfree_rcu() test.

16.	Make rcu_torture_barrier_cbs() post from corresponding CPU.

17.	Manually clean up after rcu_barrier() failure.

18.	Set KCSAN Kconfig options to detect more data races.

							Thanx, Paul

------------------------------------------------------------------------

 Documentation/admin-guide/kernel-parameters.txt           |   10 +
 include/linux/rcutiny.h                                   |    1 
 include/linux/rcutree.h                                   |    1 
 kernel/rcu/rcu.h                                          |   17 +++
 kernel/rcu/rcuperf.c                                      |   14 ++
 kernel/rcu/rcutorture.c                                   |   73 ++++++++++----
 kernel/rcu/tree_exp.h                                     |    9 +
 kernel/rcu/tree_stall.h                                   |    6 -
 kernel/rcu/update.c                                       |   20 +++
 kernel/torture.c                                          |   29 ++++-
 tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh |    2 
 tools/testing/selftests/rcutorture/bin/kvm-recheck.sh     |   17 +++
 tools/testing/selftests/rcutorture/bin/kvm.sh             |    2 
 tools/testing/selftests/rcutorture/configs/rcu/CFcommon   |    2 
 tools/testing/selftests/rcutorture/configs/rcu/TREE10     |   18 +++
 15 files changed, 187 insertions(+), 34 deletions(-)