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,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 02/13] rcutorture: Exchange TREE03 and TREE04 geometries
Date: Tue, 12 May 2015 15:58:02 -0700 [thread overview]
Message-ID: <1431471493-5431-2-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <1431471493-5431-1-git-send-email-paulmck@linux.vnet.ibm.com>
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Given that the combination of PREEMPT_RCU and HOTPLUG_CPU is producing the
most bugs lately, this commit swaps the TREE03 and TREE04 rcu_node-tree
geometries so that the test exercising PREEMPT_RCU and HOTPLUG_CPU has
three-level rather than two-level rcu_node trees.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 4 ++--
tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE03 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
index 53f24e0a0ab6..4dc8339bab5e 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
@@ -9,8 +9,8 @@ CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=y
-CONFIG_RCU_FANOUT=4
-CONFIG_RCU_FANOUT_LEAF=4
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
index 0f84db35b36d..4eb6d374a0ca 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
@@ -13,8 +13,8 @@ CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
-CONFIG_RCU_FANOUT=2
-CONFIG_RCU_FANOUT_LEAF=2
+CONFIG_RCU_FANOUT=4
+CONFIG_RCU_FANOUT_LEAF=4
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
--
1.8.1.5
next prev parent 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 [PATCH tip/core/rcu 0/13] Torture-test updates for 4.2 Paul E. McKenney
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 ` Paul E. McKenney [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1431471493-5431-2-git-send-email-paulmck@linux.vnet.ibm.com \
--to=paulmck@linux.vnet.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=bobby.prani@gmail.com \
--cc=dhowells@redhat.com \
--cc=dipankar@in.ibm.com \
--cc=dvhart@linux.intel.com \
--cc=edumazet@google.com \
--cc=fweisbec@gmail.com \
--cc=josh@joshtriplett.org \
--cc=laijs@cn.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®