1 files changed, 7 insertions, 1 deletions

diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 0c924de58cb2..022a4927b785 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -72,7 +72,13 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout)
 {
         unsigned long switch_count = t->nvcsw + t->nivcsw;
 
-        if (t->flags & PF_FROZEN)
+        /*
+         * Ensure the task is not frozen.
+         * Also, when a freshly created task is scheduled once, changes
+         * its state to TASK_UNINTERRUPTIBLE without having ever been
+         * switched out once, it musn't be checked.
+         */
+        if (unlikely(t->flags & PF_FROZEN || !switch_count))
                 return;
 
         if (switch_count != t->last_switch_count) {