Index: lib/libc/sys/Symbol.map
===================================================================
--- lib/libc/sys/Symbol.map
+++ lib/libc/sys/Symbol.map
@@ -179,8 +179,6 @@
 	munlockall;
 	munmap;
 	nanosleep;
-	netbsd_lchown;
-	netbsd_msync;
 	nfssvc;
 	nmount;
 	ntp_adjtime;
@@ -777,10 +775,6 @@
 	__sys_munmap;
 	_nanosleep;
 	__sys_nanosleep;
-	_netbsd_lchown;
-	__sys_netbsd_lchown;
-	_netbsd_msync;
-	__sys_netbsd_msync;
 	_nfssvc;
 	__sys_nfssvc;
 	_nmount;
Index: sys/compat/freebsd32/syscalls.master
===================================================================
--- sys/compat/freebsd32/syscalls.master
+++ sys/compat/freebsd32/syscalls.master
@@ -500,13 +500,10 @@
 				    int count); }
 273	AUE_NULL	UNIMPL	nosys
 274	AUE_LCHMOD	NOPROTO	{ int lchmod(char *path, mode_t mode); }
-275	AUE_LCHOWN	NOPROTO	{ int lchown(char *path, uid_t uid, \
-				    gid_t gid); } netbsd_lchown \
-				    lchown_args int
+275	AUE_NULL	OBSOL	netbsd_lchown
 276	AUE_LUTIMES	STD	{ int freebsd32_lutimes(char *path, \
 				    struct timeval32 *tptr); }
-277	AUE_MSYNC	NOPROTO	{ int msync(void *addr, size_t len, \
-				    int flags); } netbsd_msync msync_args int
+277	AUE_NULL	OBSOL	netbsd_msync
 278	AUE_STAT  COMPAT11|NOPROTO { int nstat(char *path, struct nstat *ub); }
 279	AUE_FSTAT COMPAT11|NOPROTO { int nfstat(int fd, struct nstat *sb); }
 280	AUE_LSTAT COMPAT11|NOPROTO { int nlstat(char *path, struct nstat *ub); }
Index: sys/kern/syscalls.master
===================================================================
--- sys/kern/syscalls.master
+++ sys/kern/syscalls.master
@@ -631,13 +631,10 @@
 				    size_t count); }
 273	AUE_NULL	UNIMPL	nosys
 274	AUE_LCHMOD	STD	{ int lchmod(_In_z_ char *path, mode_t mode); }
-275	AUE_LCHOWN	NOPROTO	{ int lchown(char *path, uid_t uid, \
-				    gid_t gid); } netbsd_lchown lchown_args \
-				    int
+275	AUE_NULL	OBSOL	netbsd_lchown
 276	AUE_LUTIMES	STD	{ int lutimes(_In_z_ char *path, \
 				    _In_ struct timeval *tptr); }
-277	AUE_MSYNC	NOPROTO	{ int msync(_In_ void *addr, size_t len, \
-				    int flags); } netbsd_msync msync_args int
+277	AUE_NULL	OBSOL	netbsd_msync
 278	AUE_STAT	COMPAT11 { int nstat(_In_z_ char *path, \
 				    _Out_ struct nstat *ub); }
 279	AUE_FSTAT	COMPAT11 { int nfstat(int fd, _Out_ struct nstat *sb); }