rcu: enable CPU_STALL_VERBOSE by default

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@linux.vnet.ibm.com>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 94090b4bb7d2dfa9674b1f0a07584fa076b70529..930a9e5eae08e759a5ad392ab2b5790ad3498e05 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -805,7 +805,7 @@ 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.