From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, jiangshanlai@gmail.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 RFC tip/core/rcu 0/8] Waketorture, not for inclusion
Date: Wed, 15 Jun 2016 15:27:56 -0700 [thread overview]
Message-ID: <20160615222756.GA10695@linux.vnet.ibm.com> (raw)
Hello!
And for your amusement, this series provides a waketorture module. It is
intended to increase the probability of a heisenbug or three I have been
chasing for longer than I care to admit. Should it someday actually
significantly increase that probability, I might consider submitting it
for acceptance. In the meantime, for your amusement:
1. Add a wakeup-torture module.
2. Update scripting to accommodate waketorture.
3. Don't kick kthreads unless grace period or request.
4. Add utilization measurement.
5. Add hrtimer support for fine-grained event scheduling.
6. Make waketorture always hotplug the same CPU.
7. Make waketorture kill test if no hotpluggable CPUs.
8. Affinity waiter tasks away from hotpluggable CPU.
Thanx, Paul
------------------------------------------------------------------------
kernel/rcu/Makefile | 3
kernel/rcu/tree.c | 3
kernel/rcu/waketorture.c | 567 +++++++++-
lib/Kconfig.debug | 18
tools/testing/selftests/rcutorture/bin/kvm-recheck-wake.sh | 39
tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 2
tools/testing/selftests/rcutorture/bin/kvm.sh | 2
tools/testing/selftests/rcutorture/configs/wake/CFLIST | 1
tools/testing/selftests/rcutorture/configs/wake/CFcommon | 2
tools/testing/selftests/rcutorture/configs/wake/SH | 19
tools/testing/selftests/rcutorture/configs/wake/SH.boot | 1
tools/testing/selftests/rcutorture/configs/wake/STI | 19
tools/testing/selftests/rcutorture/configs/wake/STI.boot | 1
tools/testing/selftests/rcutorture/configs/wake/ver_functions.sh | 43
14 files changed, 701 insertions(+), 19 deletions(-)
next reply other threads:[~2016-06-15 22:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 22:27 Paul E. McKenney [this message]
2016-06-15 22:28 ` [PATCH tip/core/rcu 1/8] waketorture: Add a wakeup-torture module Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 2/8] waketorture: Update scripting to accommodate waketorture Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 3/8] waketorture: Don't kick unless grace period or request Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 4/8] waketorture: Add utilization measurement Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 5/8] waketorture: Add hrtimer support Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 6/8] torture: Make waketorture always hotplug the same CPU Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 7/8] torture: Make waketorture kill test if no hotpluggable CPUs Paul E. McKenney
2016-06-15 22:28 ` [PATCH tip/core/rcu 8/8] torture: Affinity waiter tasks away from hotpluggable CPU Paul E. McKenney
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