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From: Paul E. McKenney on 20 Apr 2010 17:50
The CPU_STALL_VERBOSE kernel configuration parameter was added to
2.6.34 to identify any preempted/blocked tasks that were preventing
the current grace period from completing when running preemptible
RCU. As is conventional for new configurations parameters, this
defaulted disabled. It is now time to enable it by default.

Signed-off-by: Paul E. McKenney <paulmck(a)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 935248b..40d7be7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -793,7 +793,7 @@ config RCU_CPU_STALL_DETECTOR
config RCU_CPU_STALL_VERBOSE
bool "Print additional per-task information for RCU_CPU_STALL_DETECTOR"
depends on RCU_CPU_STALL_DETECTOR && TREE_PREEMPT_RCU
- default n
+ default y
help
This option causes RCU to printk detailed per-task information
for any tasks that are stalling the current RCU grace period.
--
1.7.0

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Prev: [GIT PULL] ext4 fixes
Next: [PATCH tip/core/rcu 06/23] rcu: fix now-bogus rcu_scheduler_active comments.