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Message-Id: <20180125062700.GY3741@linux.vnet.ibm.com>
Date: Wed, 24 Jan 2018 22:27:00 -0800
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: lianglihao@...wei.com
Cc: guohanjun@...wei.com, heng.z@...wei.com, hb.chen@...wei.com,
lihao.liang@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 03/16] rcutorture: Add PRCU test config files
On Tue, Jan 23, 2018 at 03:59:28PM +0800, lianglihao@...wei.com wrote:
> From: Lihao Liang <lianglihao@...wei.com>
>
> Use the same config files as TREE02, TREE03, TREE06, TREE07, and TREE09.
>
> Signed-off-by: Lihao Liang <lianglihao@...wei.com>
> ---
> .../selftests/rcutorture/configs/rcu/CFLIST | 5 ++++
> .../selftests/rcutorture/configs/rcu/PRCU02 | 27 ++++++++++++++++++++++
> .../selftests/rcutorture/configs/rcu/PRCU02.boot | 1 +
> .../selftests/rcutorture/configs/rcu/PRCU03 | 23 ++++++++++++++++++
> .../selftests/rcutorture/configs/rcu/PRCU03.boot | 2 ++
> .../selftests/rcutorture/configs/rcu/PRCU06 | 26 +++++++++++++++++++++
> .../selftests/rcutorture/configs/rcu/PRCU06.boot | 5 ++++
> .../selftests/rcutorture/configs/rcu/PRCU07 | 25 ++++++++++++++++++++
> .../selftests/rcutorture/configs/rcu/PRCU07.boot | 2 ++
> .../selftests/rcutorture/configs/rcu/PRCU09 | 19 +++++++++++++++
> .../selftests/rcutorture/configs/rcu/PRCU09.boot | 1 +
> 11 files changed, 136 insertions(+)
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU02
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU02.boot
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU03
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU03.boot
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU06
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU06.boot
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU07
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU07.boot
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU09
> create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/PRCU09.boot
>
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
> index a3a1a05a..7359e194 100644
> --- a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
> @@ -1,3 +1,8 @@
> +PRCU02
> +PRCU03
> +PRCU06
> +PRCU07
> +PRCU09
> TREE01
> TREE02
> TREE03
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU02 b/tools/testing/selftests/rcutorture/configs/rcu/PRCU02
> new file mode 100644
> index 00000000..5f532f05
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU02
> @@ -0,0 +1,27 @@
> +CONFIG_SMP=y
> +CONFIG_NR_CPUS=8
> +CONFIG_PREEMPT_NONE=n
> +CONFIG_PREEMPT_VOLUNTARY=n
> +CONFIG_PREEMPT=y
> +CONFIG_PRCU=y
> +#CHECK#CONFIG_PREEMPT_RCU=y
> +CONFIG_HZ_PERIODIC=n
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_NO_HZ_FULL=n
> +CONFIG_RCU_FAST_NO_HZ=n
> +CONFIG_RCU_TRACE=n
> +CONFIG_HOTPLUG_CPU=n
> +CONFIG_SUSPEND=n
> +CONFIG_HIBERNATION=n
> +CONFIG_RCU_FANOUT=3
> +CONFIG_RCU_FANOUT_LEAF=3
> +CONFIG_RCU_NOCB_CPU=n
> +CONFIG_DEBUG_LOCK_ALLOC=y
> +CONFIG_PROVE_LOCKING=n
> +CONFIG_RCU_BOOST=n
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> +CONFIG_RCU_EXPERT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU02.boot b/tools/testing/selftests/rcutorture/configs/rcu/PRCU02.boot
> new file mode 100644
> index 00000000..6c5e626f
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU02.boot
> @@ -0,0 +1 @@
> +rcutorture.torture_type=prcu
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU03 b/tools/testing/selftests/rcutorture/configs/rcu/PRCU03
> new file mode 100644
> index 00000000..869cadc8
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU03
> @@ -0,0 +1,23 @@
> +CONFIG_SMP=y
> +CONFIG_NR_CPUS=16
> +CONFIG_PREEMPT_NONE=n
> +CONFIG_PREEMPT_VOLUNTARY=n
> +CONFIG_PREEMPT=y
> +CONFIG_PRCU=y
> +#CHECK#CONFIG_PREEMPT_RCU=y
> +CONFIG_HZ_PERIODIC=y
> +CONFIG_NO_HZ_IDLE=n
> +CONFIG_NO_HZ_FULL=n
> +CONFIG_RCU_TRACE=y
> +CONFIG_HOTPLUG_CPU=y
And from what I can see, PRCU doesn't handle CPU hotplug. I would not
be surprised to see rcutorture failures when running this scenario.
> +CONFIG_RCU_FANOUT=2
> +CONFIG_RCU_FANOUT_LEAF=2
> +CONFIG_RCU_NOCB_CPU=n
> +CONFIG_DEBUG_LOCK_ALLOC=n
> +CONFIG_RCU_BOOST=y
> +CONFIG_RCU_KTHREAD_PRIO=2
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> +CONFIG_RCU_EXPERT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU03.boot b/tools/testing/selftests/rcutorture/configs/rcu/PRCU03.boot
> new file mode 100644
> index 00000000..0be10cba
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU03.boot
> @@ -0,0 +1,2 @@
> +rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
> +rcutorture.torture_type=prcu
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU06 b/tools/testing/selftests/rcutorture/configs/rcu/PRCU06
> new file mode 100644
> index 00000000..b1480963
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU06
> @@ -0,0 +1,26 @@
> +CONFIG_SMP=y
> +CONFIG_NR_CPUS=8
> +CONFIG_PREEMPT_NONE=y
> +CONFIG_PREEMPT_VOLUNTARY=n
> +CONFIG_PREEMPT=n
> +CONFIG_PRCU=y
> +#CHECK#CONFIG_TREE_RCU=y
> +CONFIG_HZ_PERIODIC=n
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_NO_HZ_FULL=n
> +CONFIG_RCU_FAST_NO_HZ=n
> +CONFIG_RCU_TRACE=n
> +CONFIG_HOTPLUG_CPU=n
> +CONFIG_SUSPEND=n
> +CONFIG_HIBERNATION=n
> +CONFIG_RCU_FANOUT=6
> +CONFIG_RCU_FANOUT_LEAF=6
> +CONFIG_RCU_NOCB_CPU=n
> +CONFIG_DEBUG_LOCK_ALLOC=y
> +CONFIG_PROVE_LOCKING=y
> +#CHECK#CONFIG_PROVE_RCU=y
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
> +CONFIG_RCU_EXPERT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU06.boot b/tools/testing/selftests/rcutorture/configs/rcu/PRCU06.boot
> new file mode 100644
> index 00000000..00787e68
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU06.boot
> @@ -0,0 +1,5 @@
> +rcupdate.rcu_self_test=1
> +rcupdate.rcu_self_test_bh=1
> +rcupdate.rcu_self_test_sched=1
> +rcutree.rcu_fanout_exact=1
> +rcutorture.torture_type=prcu
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU07 b/tools/testing/selftests/rcutorture/configs/rcu/PRCU07
> new file mode 100644
> index 00000000..14f74c68
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU07
> @@ -0,0 +1,25 @@
> +CONFIG_SMP=y
> +CONFIG_NR_CPUS=16
> +CONFIG_CPUMASK_OFFSTACK=y
> +CONFIG_PREEMPT_NONE=y
> +CONFIG_PREEMPT_VOLUNTARY=n
> +CONFIG_PREEMPT=n
> +CONFIG_PRCU=y
> +#CHECK#CONFIG_TREE_RCU=y
> +CONFIG_HZ_PERIODIC=n
> +CONFIG_NO_HZ_IDLE=n
> +CONFIG_NO_HZ_FULL=y
> +CONFIG_NO_HZ_FULL_ALL=n
> +CONFIG_NO_HZ_FULL_SYSIDLE=y
> +CONFIG_RCU_FAST_NO_HZ=n
> +CONFIG_RCU_TRACE=y
> +CONFIG_HOTPLUG_CPU=y
And this one.
> +CONFIG_RCU_FANOUT=2
> +CONFIG_RCU_FANOUT_LEAF=2
> +CONFIG_RCU_NOCB_CPU=n
> +CONFIG_DEBUG_LOCK_ALLOC=n
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> +CONFIG_RCU_EXPERT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> +CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU07.boot b/tools/testing/selftests/rcutorture/configs/rcu/PRCU07.boot
> new file mode 100644
> index 00000000..43dac30b
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU07.boot
> @@ -0,0 +1,2 @@
> +nohz_full=2-9
> +rcutorture.torture_type=prcu
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU09 b/tools/testing/selftests/rcutorture/configs/rcu/PRCU09
> new file mode 100644
> index 00000000..43d4718d
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU09
> @@ -0,0 +1,19 @@
> +CONFIG_SMP=n
> +CONFIG_NR_CPUS=1
> +CONFIG_PREEMPT_NONE=n
> +CONFIG_PREEMPT_VOLUNTARY=n
> +CONFIG_PREEMPT=y
> +CONFIG_PRCU=y
> +#CHECK#CONFIG_PREEMPT_RCU=y
> +CONFIG_HZ_PERIODIC=n
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_NO_HZ_FULL=n
> +CONFIG_RCU_TRACE=n
> +CONFIG_HOTPLUG_CPU=n
> +CONFIG_SUSPEND=n
> +CONFIG_HIBERNATION=n
> +CONFIG_RCU_NOCB_CPU=n
> +CONFIG_DEBUG_LOCK_ALLOC=n
> +CONFIG_RCU_BOOST=n
> +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> +#CHECK#CONFIG_RCU_EXPERT=n
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/PRCU09.boot b/tools/testing/selftests/rcutorture/configs/rcu/PRCU09.boot
> new file mode 100644
> index 00000000..6c5e626f
> --- /dev/null
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/PRCU09.boot
> @@ -0,0 +1 @@
> +rcutorture.torture_type=prcu
> --
> 2.14.1.729.g59c0ea183
>
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