--- libaitsched/src/aitsched.c	2023/08/31 15:23:24	1.34
+++ libaitsched/src/aitsched.c	2023/08/31 15:31:17	1.34.2.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitsched.c,v 1.34 2023/08/31 15:23:24 misho Exp $
+* $Id: aitsched.c,v 1.34.2.2 2023/08/31 15:31:17 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -272,7 +272,12 @@ schedInit(void ** __restrict data, size_t datlen)
 		for (i = 0; i < taskMAX; i++)
 			pthread_mutex_unlock(&root->root_mtx[i]);
 
+#if SUP_ENABLE == KQ_SUPPORT
+		sigfillset(&ss);
+		pthread_sigmask(SIG_BLOCK, &ss, &root->root_oldset);
+#else
 		pthread_sigmask(SIG_BLOCK, NULL, &root->root_oldset);
+#endif
 #else
 		sigprocmask(SIG_BLOCK, NULL, &root->root_oldset);
 #endif