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Fri, 02 Oct 2026 10:11:32 -0700 (PDT) From: Kunwu Chan To: paulmck@kernel.org, corbet@lwn.net, mingo@redhat.com, frederic@kernel.org, neeraj.upadhyay@kernel.org, josh@joshtriplett.org, urezki@gmail.com, dave@stgolabs.net, lianux.mm@gmail.com Cc: stern@rowland.harvard.edu, parri.andrea@gmail.com, will@kernel.org, peterz@infradead.org, boqun@kernel.org, npiggin@gmail.com, dhowells@redhat.com, j.alglave@ucl.ac.uk, luc.maranget@inria.fr, akiyks@gmail.com, dlustig@nvidia.com, joelagnelf@nvidia.com, skhan@linuxfoundation.org, rdunlap@infradead.org, longman@redhat.com, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang@linux.dev, kunwu.chan@gmail.com, brads@mainlining.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, lkmm@lists.linux.dev, linux-doc@vger.kernel.org, rcu@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH RFC v2 13/15] hazptrtorture: add READERS4 and READERS0 torture configs Date: Sat, 3 Oct 2026 01:08:45 +0800 Message-ID: <20261002170847.3653663-14-kunwu.chan@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261002170847.3653663-1-kunwu.chan@gmail.com> References: <20261002170847.3653663-1-kunwu.chan@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add READERS4 and READERS0 configs to cover reader-active and reader-free synchronize paths. Both use the PREEMPT baseline and hazptr-stack torture type, with four readers for READERS4 and no readers for READERS0. Signed-off-by: Kunwu Chan --- .../selftests/rcutorture/configs/hazptr/CFLIST | 2 ++ .../selftests/rcutorture/configs/hazptr/READERS0 | 16 ++++++++++++++++ .../rcutorture/configs/hazptr/READERS0.boot | 2 ++ .../selftests/rcutorture/configs/hazptr/READERS4 | 16 ++++++++++++++++ .../rcutorture/configs/hazptr/READERS4.boot | 2 ++ 5 files changed, 38 insertions(+) create mode 100644 tools/testing/selftests/rcutorture/configs/hazptr/READERS0 create mode 100644 tools/testing/selftests/rcutorture/configs/hazptr/READERS0.boot create mode 100644 tools/testing/selftests/rcutorture/configs/hazptr/READERS4 create mode 100644 tools/testing/selftests/rcutorture/configs/hazptr/READERS4.boot diff --git a/tools/testing/selftests/rcutorture/configs/hazptr/CFLIST b/tools/testing/selftests/rcutorture/configs/hazptr/CFLIST index 380b8402ccc9..1826be30c066 100644 --- a/tools/testing/selftests/rcutorture/configs/hazptr/CFLIST +++ b/tools/testing/selftests/rcutorture/configs/hazptr/CFLIST @@ -1,4 +1,6 @@ NOPREEMPT PREEMPT +READERS0 +READERS4 SLOWPATH LOCKDEP diff --git a/tools/testing/selftests/rcutorture/configs/hazptr/READERS0 b/tools/testing/selftests/rcutorture/configs/hazptr/READERS0 new file mode 100644 index 000000000000..c5b12f3bef74 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/hazptr/READERS0 @@ -0,0 +1,16 @@ +CONFIG_SMP=y +CONFIG_NR_CPUS=16 +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y +CONFIG_HZ_PERIODIC=n +CONFIG_NO_HZ_IDLE=y +CONFIG_NO_HZ_FULL=n +CONFIG_HOTPLUG_CPU=y +CONFIG_SUSPEND=n +CONFIG_HIBERNATION=n +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n +CONFIG_DEBUG_KERNEL=y +CONFIG_HAZPTR_DEBUG=y diff --git a/tools/testing/selftests/rcutorture/configs/hazptr/READERS0.boot b/tools/testing/selftests/rcutorture/configs/hazptr/READERS0.boot new file mode 100644 index 000000000000..f5564c218902 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/hazptr/READERS0.boot @@ -0,0 +1,2 @@ +hazptrtorture.nreaders=0 +hazptrtorture.torture_type=hazptr-stack diff --git a/tools/testing/selftests/rcutorture/configs/hazptr/READERS4 b/tools/testing/selftests/rcutorture/configs/hazptr/READERS4 new file mode 100644 index 000000000000..c5b12f3bef74 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/hazptr/READERS4 @@ -0,0 +1,16 @@ +CONFIG_SMP=y +CONFIG_NR_CPUS=16 +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y +CONFIG_HZ_PERIODIC=n +CONFIG_NO_HZ_IDLE=y +CONFIG_NO_HZ_FULL=n +CONFIG_HOTPLUG_CPU=y +CONFIG_SUSPEND=n +CONFIG_HIBERNATION=n +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n +CONFIG_DEBUG_KERNEL=y +CONFIG_HAZPTR_DEBUG=y diff --git a/tools/testing/selftests/rcutorture/configs/hazptr/READERS4.boot b/tools/testing/selftests/rcutorture/configs/hazptr/READERS4.boot new file mode 100644 index 000000000000..0d0df3f7dca4 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/hazptr/READERS4.boot @@ -0,0 +1,2 @@ +hazptrtorture.nreaders=4 +hazptrtorture.torture_type=hazptr-stack -- 2.43.0