diff --git a/sys/compat/aoutm68k/aoutm68k_syscall.h b/sys/compat/aoutm68k/aoutm68k_syscall.h
index 84105f191df9..e0599815c3c6 100644
--- a/sys/compat/aoutm68k/aoutm68k_syscall.h
+++ b/sys/compat/aoutm68k/aoutm68k_syscall.h
@@ -1,10 +1,10 @@
-/* $NetBSD: aoutm68k_syscall.h,v 1.50 2017/12/19 18:10:22 kamil Exp $ */
+/* $NetBSD: aoutm68k_syscall.h,v 1.51 2017/12/19 19:17:17 kamil Exp $ */
 
 /*
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.38 2017/12/19 08:09:36 kamil Exp
+ * created from	NetBSD: syscalls.master,v 1.39 2017/12/19 18:10:22 kamil Exp
  */
 
 #ifndef _AOUTM68K_SYS_SYSCALL_H_
@@ -273,9 +273,7 @@
 #else
 				/* 71 is excluded compat_43_sys_mmap */
 #endif
-/* syscall: "vadvise" ret: "int" args: "int" */
-#define	AOUTM68K_SYS_vadvise	72
-
+				/* 72 is obsolete vadvise */
 /* syscall: "munmap" ret: "int" args: "void *" "size_t" */
 #define	AOUTM68K_SYS_munmap	73
 
diff --git a/sys/compat/aoutm68k/aoutm68k_syscallargs.h b/sys/compat/aoutm68k/aoutm68k_syscallargs.h
index 6636c9ff43dd..a8a6fafef404 100644
--- a/sys/compat/aoutm68k/aoutm68k_syscallargs.h
+++ b/sys/compat/aoutm68k/aoutm68k_syscallargs.h
@@ -1,10 +1,10 @@
-/* $NetBSD: aoutm68k_syscallargs.h,v 1.48 2017/12/19 18:10:22 kamil Exp $ */
+/* $NetBSD: aoutm68k_syscallargs.h,v 1.49 2017/12/19 19:17:17 kamil Exp $ */
 
 /*
  * System call argument lists.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.38 2017/12/19 08:09:36 kamil Exp
+ * created from	NetBSD: syscalls.master,v 1.39 2017/12/19 18:10:22 kamil Exp
  */
 
 #ifndef _AOUTM68K_SYS_SYSCALLARGS_H_
@@ -195,8 +195,6 @@ struct compat_43_sys_mmap_args;
 #else
 #endif
 
-struct sys_ovadvise_args;
-
 struct sys_munmap_args;
 
 struct sys_mprotect_args;
@@ -823,8 +821,6 @@ int	compat_43_sys_mmap(struct lwp *, const struct compat_43_sys_mmap_args *, reg
 
 #else
 #endif
-int	sys_ovadvise(struct lwp *, const struct sys_ovadvise_args *, register_t *);
-
 int	sys_munmap(struct lwp *, const struct sys_munmap_args *, register_t *);
 
 int	sys_mprotect(struct lwp *, const struct sys_mprotect_args *, register_t *);
diff --git a/sys/compat/aoutm68k/aoutm68k_syscalls.c b/sys/compat/aoutm68k/aoutm68k_syscalls.c
index 6cf0723d33b3..3da8ab188a44 100644
--- a/sys/compat/aoutm68k/aoutm68k_syscalls.c
+++ b/sys/compat/aoutm68k/aoutm68k_syscalls.c
@@ -1,14 +1,14 @@
-/* $NetBSD: aoutm68k_syscalls.c,v 1.47 2017/12/19 18:10:22 kamil Exp $ */
+/* $NetBSD: aoutm68k_syscalls.c,v 1.48 2017/12/19 19:17:17 kamil Exp $ */
 
 /*
  * System call names.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.38 2017/12/19 08:09:36 kamil Exp
+ * created from	NetBSD: syscalls.master,v 1.39 2017/12/19 18:10:22 kamil Exp
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: aoutm68k_syscalls.c,v 1.47 2017/12/19 18:10:22 kamil Exp $");
+__KERNEL_RCSID(0, "$NetBSD: aoutm68k_syscalls.c,v 1.48 2017/12/19 19:17:17 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #if defined(_KERNEL_OPT)
@@ -158,7 +158,7 @@ const char *const aoutm68k_syscallnames[] = {
 #else
 	/*  71 */	"#71 (excluded compat_43_sys_mmap)",
 #endif
-	/*  72 */	"vadvise",
+	/*  72 */	"#72 (obsolete vadvise)",
 	/*  73 */	"munmap",
 	/*  74 */	"mprotect",
 	/*  75 */	"madvise",
@@ -905,7 +905,7 @@ const char *const altaoutm68k_syscallnames[] = {
 #else
 	/*  71 */	NULL, /* excluded compat_43_sys_mmap */
 #endif
-	/*  72 */	"ovadvise",
+	/*  72 */	NULL, /* obsolete vadvise */
 	/*  73 */	NULL, /* munmap */
 	/*  74 */	NULL, /* mprotect */
 	/*  75 */	NULL, /* madvise */
diff --git a/sys/compat/aoutm68k/aoutm68k_sysent.c b/sys/compat/aoutm68k/aoutm68k_sysent.c
index d0b03739ccea..d475e06bab16 100644
--- a/sys/compat/aoutm68k/aoutm68k_sysent.c
+++ b/sys/compat/aoutm68k/aoutm68k_sysent.c
@@ -1,14 +1,14 @@
-/* $NetBSD: aoutm68k_sysent.c,v 1.52 2017/12/19 18:10:22 kamil Exp $ */
+/* $NetBSD: aoutm68k_sysent.c,v 1.53 2017/12/19 19:17:17 kamil Exp $ */
 
 /*
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.38 2017/12/19 08:09:36 kamil Exp
+ * created from	NetBSD: syscalls.master,v 1.39 2017/12/19 18:10:22 kamil Exp
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: aoutm68k_sysent.c,v 1.52 2017/12/19 18:10:22 kamil Exp $");
+__KERNEL_RCSID(0, "$NetBSD: aoutm68k_sysent.c,v 1.53 2017/12/19 19:17:17 kamil Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_ktrace.h"
@@ -434,9 +434,8 @@ struct sysent aoutm68k_sysent[] = {
 	},		/* 71 = filler */
 #endif
 	{
-		ns(struct sys_ovadvise_args),
-		.sy_call = (sy_call_t *)sys_ovadvise
-	},		/* 72 = vadvise */
+		.sy_call = sys_nosys,
+	},		/* 72 = filler */
 	{
 		ns(struct sys_munmap_args),
 		.sy_flags = SYCALL_ARG_PTR,
diff --git a/sys/compat/aoutm68k/syscalls.master b/sys/compat/aoutm68k/syscalls.master
index d8c107f6dd41..4c83d29429a7 100644
--- a/sys/compat/aoutm68k/syscalls.master
+++ b/sys/compat/aoutm68k/syscalls.master
@@ -1,4 +1,4 @@
-	$NetBSD: syscalls.master,v 1.39 2017/12/19 18:10:22 kamil Exp $
+	$NetBSD: syscalls.master,v 1.40 2017/12/19 19:17:17 kamil Exp $
 
 ;	@(#)syscalls.master	8.2 (Berkeley) 1/13/94
 
@@ -220,7 +220,7 @@
 #else
 71	EXCL		compat_43_sys_mmap
 #endif
-72	NOARGS		{ int|sys||ovadvise(int anom); } vadvise
+72	OBSOL		vadvise
 73	NOARGS		{ int|sys||munmap(void *addr, size_t len); }
 74	NOARGS		{ int|sys||mprotect(void *addr, size_t len, \
 			    int prot); }