--- src/sys/emulation/svr4/Attic/svr4_signal.c	2003/08/27 06:07:10	1.9
+++ src/sys/emulation/svr4/Attic/svr4_signal.c	2005/06/27 01:49:59	1.10
@@ -36,6 +36,7 @@
 #include <sys/signal.h>
 #include <sys/signalvar.h>
 #include <sys/sysproto.h>
+#include <sys/thread2.h>
 
 #include "svr4.h"
 #include "svr4_types.h"
@@ -531,7 +532,7 @@ svr4_sys_sigprocmask(struct svr4_sys_sig
 
 	svr4_to_bsd_sigset(&sss, &bss);
 
-	(void) splhigh();
+	crit_enter();
 
 	switch (SCARG(uap, how)) {
 	case SVR4_SIG_BLOCK:
@@ -553,7 +554,7 @@ svr4_sys_sigprocmask(struct svr4_sys_sig
 		break;
 	}
 
-	(void) spl0();
+	crit_exit();
 
 	return error;
 }