diff --git a/sys/compat/irix/irix_syscall.h b/sys/compat/irix/irix_syscall.h
index 91896a5d626e..699e89c861fc 100644
--- a/sys/compat/irix/irix_syscall.h
+++ b/sys/compat/irix/irix_syscall.h
@@ -1,10 +1,10 @@
-/* $NetBSD: irix_syscall.h,v 1.24 2002/02/21 11:09:43 manu Exp $ */
+/* $NetBSD: irix_syscall.h,v 1.25 2002/02/21 22:15:28 manu Exp $ */
 
 /*
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.22 2002/02/17 22:49:55 manu Exp 
+ * created from	NetBSD: syscalls.master,v 1.23 2002/02/21 11:09:43 manu Exp 
  */
 
 /* syscall: "syscall" ret: "int" args: */
@@ -280,6 +280,12 @@
 /* syscall: "mmap" ret: "void *" args: "void *" "svr4_size_t" "int" "int" "int" "svr4_off_t" */
 #define	IRIX_SYS_mmap	134
 
+/* syscall: "munmap" ret: "int" args: "void *" "int" */
+#define	IRIX_SYS_munmap	135
+
+/* syscall: "mprotect" ret: "int" args: "void *" "int" "int" */
+#define	IRIX_SYS_mprotect	136
+
 /* syscall: "systeminfo" ret: "long" args: "int" "char *" "long" */
 #define	IRIX_SYS_systeminfo	156
 
diff --git a/sys/compat/irix/irix_syscallargs.h b/sys/compat/irix/irix_syscallargs.h
index b73be2842d1e..53627ec98912 100644
--- a/sys/compat/irix/irix_syscallargs.h
+++ b/sys/compat/irix/irix_syscallargs.h
@@ -1,10 +1,10 @@
-/* $NetBSD: irix_syscallargs.h,v 1.24 2002/02/21 11:09:43 manu Exp $ */
+/* $NetBSD: irix_syscallargs.h,v 1.25 2002/02/21 22:15:28 manu Exp $ */
 
 /*
  * System call argument lists.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.22 2002/02/17 22:49:55 manu Exp 
+ * created from	NetBSD: syscalls.master,v 1.23 2002/02/21 11:09:43 manu Exp 
  */
 
 #ifndef _IRIX_SYS__SYSCALLARGS_H_
@@ -238,6 +238,8 @@ int	sys_adjtime(struct proc *, void *, register_t *);
 int	svr4_sys_gettimeofday(struct proc *, void *, register_t *);
 int	irix_sys_prctl(struct proc *, void *, register_t *);
 int	svr4_sys_mmap(struct proc *, void *, register_t *);
+int	sys_munmap(struct proc *, void *, register_t *);
+int	sys_mprotect(struct proc *, void *, register_t *);
 int	irix_sys_systeminfo(struct proc *, void *, register_t *);
 int	irix_sys_xstat(struct proc *, void *, register_t *);
 int	irix_sys_lxstat(struct proc *, void *, register_t *);
diff --git a/sys/compat/irix/irix_syscalls.c b/sys/compat/irix/irix_syscalls.c
index 10d4fb2f0f6b..620ddb87da75 100644
--- a/sys/compat/irix/irix_syscalls.c
+++ b/sys/compat/irix/irix_syscalls.c
@@ -1,14 +1,14 @@
-/* $NetBSD: irix_syscalls.c,v 1.24 2002/02/21 11:09:43 manu Exp $ */
+/* $NetBSD: irix_syscalls.c,v 1.25 2002/02/21 22:15:28 manu Exp $ */
 
 /*
  * System call names.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.22 2002/02/17 22:49:55 manu Exp 
+ * created from	NetBSD: syscalls.master,v 1.23 2002/02/21 11:09:43 manu Exp 
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: irix_syscalls.c,v 1.24 2002/02/21 11:09:43 manu Exp $");
+__KERNEL_RCSID(0, "$NetBSD: irix_syscalls.c,v 1.25 2002/02/21 22:15:28 manu Exp $");
 
 #if defined(_KERNEL_OPT)
 #if defined(_KERNEL_OPT)
@@ -181,8 +181,8 @@ const char *const irix_syscallnames[] = {
 	"#132 (unimplemented sprocsp)",		/* 132 = unimplemented sprocsp */
 	"#133 (unimplemented sgigsc)",		/* 133 = unimplemented sgigsc */
 	"mmap",			/* 134 = mmap */
-	"#135 (unimplemented munmap)",		/* 135 = unimplemented munmap */
-	"#136 (unimplemented mprotect)",		/* 136 = unimplemented mprotect */
+	"munmap",			/* 135 = munmap */
+	"mprotect",			/* 136 = mprotect */
 	"#137 (unimplemented msync)",		/* 137 = unimplemented msync */
 	"#138 (unimplemented madvise)",		/* 138 = unimplemented madvise */
 	"#139 (unimplemented pagelock)",		/* 139 = unimplemented pagelock */
diff --git a/sys/compat/irix/irix_sysent.c b/sys/compat/irix/irix_sysent.c
index f209d9d812ee..9d76e7cb3fce 100644
--- a/sys/compat/irix/irix_sysent.c
+++ b/sys/compat/irix/irix_sysent.c
@@ -1,14 +1,14 @@
-/* $NetBSD: irix_sysent.c,v 1.24 2002/02/21 11:09:43 manu Exp $ */
+/* $NetBSD: irix_sysent.c,v 1.25 2002/02/21 22:15:29 manu Exp $ */
 
 /*
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	NetBSD: syscalls.master,v 1.22 2002/02/17 22:49:55 manu Exp 
+ * created from	NetBSD: syscalls.master,v 1.23 2002/02/21 11:09:43 manu Exp 
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: irix_sysent.c,v 1.24 2002/02/21 11:09:43 manu Exp $");
+__KERNEL_RCSID(0, "$NetBSD: irix_sysent.c,v 1.25 2002/02/21 22:15:29 manu Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_ntp.h"
@@ -319,10 +319,10 @@ struct sysent irix_sysent[] = {
 	    sys_nosys },			/* 133 = unimplemented sgigsc */
 	{ 6, s(struct svr4_sys_mmap_args), 0,
 	    svr4_sys_mmap },			/* 134 = mmap */
-	{ 0, 0, 0,
-	    sys_nosys },			/* 135 = unimplemented munmap */
-	{ 0, 0, 0,
-	    sys_nosys },			/* 136 = unimplemented mprotect */
+	{ 2, s(struct sys_munmap_args), 0,
+	    sys_munmap },			/* 135 = munmap */
+	{ 3, s(struct sys_mprotect_args), 0,
+	    sys_mprotect },			/* 136 = mprotect */
 	{ 0, 0, 0,
 	    sys_nosys },			/* 137 = unimplemented msync */
 	{ 0, 0, 0,
diff --git a/sys/compat/irix/syscalls.master b/sys/compat/irix/syscalls.master
index 877b4fcb6da2..0848a3de280d 100644
--- a/sys/compat/irix/syscalls.master
+++ b/sys/compat/irix/syscalls.master
@@ -1,4 +1,4 @@
-	$NetBSD: syscalls.master,v 1.23 2002/02/21 11:09:43 manu Exp $
+	$NetBSD: syscalls.master,v 1.24 2002/02/21 22:15:29 manu Exp $
 
 ;	@(#)syscalls.master	8.1 (Berkeley) 7/19/93
 
@@ -250,8 +250,8 @@
 133	UNIMPL		sgigsc
 134	NOARGS		{ void *svr4_sys_mmap(void *addr, svr4_size_t len, \
 			    int prot, int flags, int fd, svr4_off_t pos); }
-135	UNIMPL		munmap
-136	UNIMPL		mprotect
+135	NOARGS		{ int sys_munmap(void *addr, int len); }
+136	NOARGS		{ int sys_mprotect(void *addr, int len, int prot); }
 137	UNIMPL		msync
 138	UNIMPL		madvise
 139	UNIMPL		pagelock