1 files changed, 8 insertions, 0 deletions

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 51c4f34d258e..1241d8c91d5e 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -553,6 +553,14 @@ void __init lockup_detector_init(void)
 {
         set_sample_period();
 
+#ifdef CONFIG_NO_HZ_FULL
+        if (watchdog_user_enabled) {
+                watchdog_user_enabled = 0;
+                pr_warning("Disabled lockup detectors by default for full dynticks\n");
+                pr_warning("You can reactivate it with 'sysctl -w kernel.watchdog=1'\n");
+        }
+#endif
+
         if (watchdog_user_enabled)
                 watchdog_enable_all_cpus();
 }