--- x/kernel/time/hrtimer.c
+++ y/kernel/time/hrtimer.c
@@ -1942,7 +1942,7 @@ retry:
 	else
 		expires_next = ktime_add(now, delta);
 	tick_program_event(expires_next, 1);
-	pr_warn_once("hrtimer: interrupt took %llu ns\n", ktime_to_ns(delta));
+	WARN(1, "hrtimer: interrupt took %llu ns on cpu%u\n", ktime_to_ns(delta), cpu_base->cpu);
 }
 #endif /* !CONFIG_HIGH_RES_TIMERS */