diff --git a/core/box/tls_sll_drain_box.h b/core/box/tls_sll_drain_box.h
index 86517589..13bc1a6e 100644
--- a/core/box/tls_sll_drain_box.h
+++ b/core/box/tls_sll_drain_box.h
@@ -43,10 +43,14 @@ static inline int tls_sll_drain_is_enabled(void) {
         const char* env = getenv("HAKMEM_TINY_SLL_DRAIN_ENABLE");
         if (env && *env == '0') {
             g_drain_enable = 0;
+#ifndef NDEBUG
             fprintf(stderr, "[TLS_SLL_DRAIN] Drain DISABLED via ENV\n");
+#endif
         } else {
             g_drain_enable = 1;
+#ifndef NDEBUG
             fprintf(stderr, "[TLS_SLL_DRAIN] Drain ENABLED (default)\n");
+#endif
         }
     }
     return g_drain_enable;
@@ -62,14 +66,20 @@ static inline uint32_t tls_sll_drain_get_interval(void) {
             int val = atoi(env);
             if (val > 0 && val <= 65536) {
                 g_drain_interval = (uint32_t)val;
+#ifndef NDEBUG
                 fprintf(stderr, "[TLS_SLL_DRAIN] Interval=%u (from ENV)\n", g_drain_interval);
+#endif
             } else {
                 g_drain_interval = 2048;
+#ifndef NDEBUG
                 fprintf(stderr, "[TLS_SLL_DRAIN] Invalid ENV value, using default=2048\n");
+#endif
             }
         } else {
             g_drain_interval = 2048;
+#ifndef NDEBUG
             fprintf(stderr, "[TLS_SLL_DRAIN] Interval=%u (default)\n", g_drain_interval);
+#endif
         }
     }
     return g_drain_interval;
diff --git a/core/hakmem.c b/core/hakmem.c
index 43deb6e3..29f1a843 100644
--- a/core/hakmem.c
+++ b/core/hakmem.c
@@ -268,6 +268,7 @@ static inline int hak_init_wait_for_ready(void) {
     if (pthread_equal(self, g_init_thread)) {
         return 0;  // We are the init thread; caller should take the existing fallback path
     }
+    // No timeout: block until init completes to avoid libc fallback on other threads.
     for (int i = 0; atomic_load_explicit(&g_initializing, memory_order_acquire); ++i) {
 #if defined(__x86_64__) || defined(__i386__)
         if (i < 1024) {
@@ -277,9 +278,6 @@ static inline int hak_init_wait_for_ready(void) {
         {
             sched_yield();
         }
-        if (i > 1000000) {
-            return -1;  // Timed out waiting for init; allow libc fallback
-        }
     }
     return 1;  // Init completed
 }