Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 4/4] rcu: make RCU's CPU-stall detector be default | Date | Wed, 2 Dec 2009 12:10:16 -0800 |
| |
From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
The RCU_CPU_STALL_DETECTOR costs almost nothing and has located some bugs that might otherwise have been difficult to track down. Make it be default for the TREE RCU implementations. (TINY_RCU does not support CPU-stall detection, but then again it is a uniprocessor...)
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- lib/Kconfig.debug | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 8911558..50e0e78 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -749,7 +749,7 @@ config RCU_TORTURE_TEST_RUNNABLE config RCU_CPU_STALL_DETECTOR bool "Check for stalled CPUs delaying RCU grace periods" depends on TREE_RCU || TREE_PREEMPT_RCU - default n + default y help This option causes RCU to printk information on which CPUs are delaying the current grace period, but only when -- 1.5.2.5
| |