diff --git a/kernel/signal.c b/kernel/signal.c
index 8dcd8825b2dedf3f16c108808192f8751aa19c96..7339d737188590e775dd5ffabc7fd8eb2ae737a5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -94,13 +94,15 @@ static int sig_ignored(struct task_struct *t, int sig, bool force)
 	if (sigismember(&t->blocked, sig) || sigismember(&t->real_blocked, sig))
 		return 0;
 
-	if (!sig_task_ignored(t, sig, force))
-		return 0;
-
 	/*
-	 * Tracers may want to know about even ignored signals.
+	 * Tracers may want to know about even ignored signal unless it
+	 * is SIGKILL which can't be reported anyway but can be ignored
+	 * by SIGNAL_UNKILLABLE task.
 	 */
-	return !t->ptrace;
+	if (t->ptrace && sig != SIGKILL)
+		return 0;
+
+	return sig_task_ignored(t, sig, force);
 }
 
 /*