--- Gnu-Mach/xen/console.c	2020/09/02 04:45:34	1.1.1.1
+++ Gnu-Mach/xen/console.c	2020/09/02 04:47:55	1.1.1.2
@@ -47,7 +47,7 @@ int hypputc(int c)
 		hyp_console_io(CONSOLEIO_write, 1, kvtolin(&d));
 	} else {
 		spl_t spl = splhigh();
-		int complain;
+		static int complain;
 		simple_lock(&outlock);
 		while (hyp_ring_smash(console->out, console->out_prod, console->out_cons)) {
 			if (!complain) {