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-rw-r--r--lib/Kconfig.debug14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3cc419d05f2..d27a2aa3e81 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -927,6 +927,20 @@ config RCU_CPU_STALL_VERBOSE
Say Y if you want to enable such checks.
+config RCU_CPU_STALL_INFO
+ bool "Print additional diagnostics on RCU CPU stall"
+ depends on (TREE_RCU || TREE_PREEMPT_RCU) && DEBUG_KERNEL
+ default n
+ help
+ For each stalled CPU that is aware of the current RCU grace
+ period, print out additional per-CPU diagnostic information
+ regarding scheduling-clock ticks, idle state, and,
+ for RCU_FAST_NO_HZ kernels, idle-entry state.
+
+ Say N if you are unsure.
+
+ Say Y if you want to enable such diagnostics.
+
config RCU_TRACE
bool "Enable tracing for RCU"
depends on DEBUG_KERNEL