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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 v2 tip/core/rcu 19/22] rcutorture: Default to grace-period-initialization delays
Date: Mon, 16 Mar 2015 11:38:03 -0700	[thread overview]
Message-ID: <1426531086-23825-19-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <1426531086-23825-1-git-send-email-paulmck@linux.vnet.ibm.com>

From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>

Given that CPU-hotplug events are now applied only at the starts of
grace periods, it makes sense to unconditionally enable slow grace-period
initialization for rcutorture testing.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 lib/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index feee8dab441e..1173afc308ad 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1276,7 +1276,7 @@ config RCU_TORTURE_TEST_SLOW_INIT
 config RCU_TORTURE_TEST_SLOW_INIT_DELAY
 	int "How much to slow down RCU grace-period initialization"
 	range 0 5
-	default 0
+	default 3
 	help
 	  This option specifies the number of jiffies to wait between
 	  each rcu_node structure initialization.
-- 
1.8.1.5


  parent reply	other threads:[~2015-03-16 18:39 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-16 18:37 [PATCH v2 tip/core/rcu 0/22] CPU hotplug updates for v4.1 Paul E. McKenney
2015-03-16 18:37 ` [PATCH v2 tip/core/rcu 01/22] smpboot: Add common code for notification from dying CPU Paul E. McKenney
2015-03-16 18:37   ` Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 02/22] x86: Use common outgoing-CPU-notification code Paul E. McKenney
2015-03-16 18:37     ` Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 03/22] blackfin: " Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 04/22] metag: " Paul E. McKenney
2015-03-16 18:37     ` Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 05/22] rcu: Consolidate offline-CPU callback initialization Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 06/22] rcu: Put all orphan-callback-related code under same comment Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 07/22] rcu: Simplify sync_rcu_preempt_exp_init() Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 08/22] rcu: Eliminate empty HOTPLUG_CPU ifdef Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 09/22] rcu: Detect stalls caused by failure to propagate up rcu_node tree Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 10/22] rcu: Provide diagnostic option to slow down grace-period initialization Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 11/22] rcutorture: Enable slow grace-period initializations Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 12/22] rcu: Remove event tracing from rcu_cpu_notify(), used by offline CPUs Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 13/22] rcu: Rework preemptible expedited bitmask handling Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 14/22] rcu: Move rcu_report_unblock_qs_rnp() to common code Paul E. McKenney
2015-03-16 18:37   ` [PATCH v2 tip/core/rcu 15/22] rcu: Process offlining and onlining only at grace-period start Paul E. McKenney
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 16/22] rcu: Eliminate ->onoff_mutex from rcu_node structure Paul E. McKenney
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 17/22] cpu: Make CPU-offline idle-loop transition point more precise Paul E. McKenney
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 18/22] rcu: Handle outgoing CPUs on exit from idle loop Paul E. McKenney
2015-03-16 18:38   ` Paul E. McKenney [this message]
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 20/22] rcu: Add diagnostics to grace-period cleanup Paul E. McKenney
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 21/22] rcu: Yet another fix for preemption and CPU hotplug Paul E. McKenney
2015-03-16 18:38   ` [PATCH v2 tip/core/rcu 22/22] rcu: Associate quiescent-state reports with grace period Paul E. McKenney
2015-03-17  8:18   ` [PATCH v2 tip/core/rcu 01/22] smpboot: Add common code for notification from dying CPU Peter Zijlstra
2015-03-17  8:18     ` Peter Zijlstra
2015-03-17 11:36     ` Paul E. McKenney
2015-03-17 11:36       ` Paul E. McKenney
2015-03-17 14:08       ` Peter Zijlstra
2015-03-17 16:34         ` Paul E. McKenney
2015-03-17 16:56         ` Peter Zijlstra
2015-03-17 17:32           ` Paul E. McKenney
2015-03-17 17:32             ` Paul E. McKenney

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