From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com
Subject: [PATCH tip/core/rcu 0/13] Torture-test updates for 4.2
Date: Tue, 12 May 2015 15:57:53 -0700 [thread overview]
Message-ID: <20150512225753.GA5012@linux.vnet.ibm.com> (raw)
Hello!
This series contains torture-test updates:
1. Use correct locking primitive, thus avoiding deadlock, courtesy
of Alexey Kodanev.
2. Exchange TREE03 and TREE04 geometries in order to improve bug-location
rates.
3. Exchange TREE03 and TREE08 NR_CPUS, speed up CPU hotplug to further
improve bug-location rates.
4. Allow negative values of nreaders to in order to oversubscribe
the CPUs, again to improve bug-location rates.
5. Change longdelay_us to longdelay_ms in order to better reflect
reality. (Not that gcc cares, but people reading the code just
might.)
6. Replace open-coded memory barriers with the shiny new
smp_store_release() and smp_load_acquire() primitives.
7. Test SRCU cleanup code path in order to improve test coverage.
8. Avoid explicitly setting CONFIG_TASKS_RCU, given that it is
now set implicitly based on other configuration options.
9. Update configuration fragments from CONFIG_RCU_FANOUT_EXACT to
the new rcutree.rcu_fanout_exact= boot parameter.
10. Make rcutorture scripts force RCU_EXPERT so that they can still
build the needed kernel configurations.
11. Update TREE_RCU-kconfig.txt to describe new kernel-parameter
setup.
12. Make torture scripts display "make oldconfig" errors
13. Allow repetition factors in Kconfig-fragment lists. Because
typing 48 repetitions of "TINY02" is getting old.
Thanx, Paul
------------------------------------------------------------------------
b/kernel/locking/locktorture.c | 14 -
b/kernel/rcu/rcutorture.c | 103 ++++++----
b/tools/testing/selftests/rcutorture/bin/configinit.sh | 2
b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 4
b/tools/testing/selftests/rcutorture/bin/kvm.sh | 25 +-
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N | 1
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P | 1
b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 | 5
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TINY02 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 2
b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 8
b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 8
b/tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 4
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 6
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot | 1
b/tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 1
b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 36 +--
28 files changed, 148 insertions(+), 94 deletions(-)
next reply other threads:[~2015-05-12 22:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-12 22:57 Paul E. McKenney [this message]
2015-05-12 22:58 ` [PATCH tip/core/rcu 01/13] locktorture: fix deadlock in 'rw_lock_irq' type Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 02/13] rcutorture: Exchange TREE03 and TREE04 geometries Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 03/13] rcutorture: Exchange TREE03 and TREE08 NR_CPUS, speed up CPU hotplug Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 04/13] rcutorture: Allow negative values of nreaders to oversubscribe Paul E. McKenney
2015-05-13 1:03 ` josh
2015-05-13 17:23 ` Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 05/13] locktorture: Change longdelay_us to longdelay_ms Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 06/13] rcutorture: Replace barriers with smp_store_release() and smp_load_acquire() Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 07/13] rcutorture: Test SRCU cleanup code path Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 08/13] rcutorture: TASKS_RCU set directly, so don't explicitly set it Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 09/13] rcutorture: Update configuration fragments for rcutree.rcu_fanout_exact Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 10/13] rcutorture: Make rcutorture scripts force RCU_EXPERT Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 11/13] rcutorture: Update TREE_RCU-kconfig.txt Paul E. McKenney
2015-05-13 1:06 ` josh
2015-05-13 17:28 ` Paul E. McKenney
2015-05-13 22:13 ` josh
2015-05-12 22:58 ` [PATCH tip/core/rcu 12/13] rcutorture: Display "make oldconfig" errors Paul E. McKenney
2015-05-12 22:58 ` [PATCH tip/core/rcu 13/13] rcutorture: Allow repetition factors in Kconfig-fragment lists Paul E. McKenney
2015-05-13 1:07 ` [PATCH tip/core/rcu 0/13] Torture-test updates for 4.2 josh
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