disable MN scheduler on !USE_MN_THREADS

ko1 · Oct 12, 2023 · 146171a · 146171a
1 parent 10ba3fc
commit 146171a
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/thread_pthread.c b/thread_pthread.c
@@ -1622,13 +1622,16 @@ ruby_mn_threads_params(void)
     bool enable_mn_threads;
 
     if (mn_threads_cstr && (enable_mn_threads = atoi(mn_threads_cstr) > 0)) {
-        if (RTEST(ruby_verbose)) {
 #if USE_MN_THREADS
+        if (RTEST(ruby_verbose)) {
             fprintf(stderr, "RUBY_MN_THREADS = %s (default: 0)\n", mn_threads_cstr);
+        }
 #else
+        enable_mn_threads = false;
+        if (RTEST(ruby_verbose)) {
             fprintf(stderr, "RUBY_MN_THREADS = %s is specified, but MN threads are not implmeented on this executable.", mn_threads_cstr);
-#endif
         }
+#endif
     }
     else {
         enable_mn_threads = false; // default: off on main Ractor