diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -1026,15 +1026,8 @@
 	case PT_SETDBREGS:
 		error = copyin(uap->addr, &r.dbreg, sizeof(r.dbreg));
 		break;
-	case PT_SETREGSET:
-		error = copyin(uap->addr, &r32.vec, sizeof(r32.vec));
-		if (error != 0)
-			break;
-
-		r.vec.iov_len = r32.vec.iov_len;
-		r.vec.iov_base = PTRIN(r32.vec.iov_base);
-		break;
 	case PT_GETREGSET:
+	case PT_SETREGSET:
 		error = copyin(uap->addr, &r32.vec, sizeof(r32.vec));
 		if (error != 0)
 			break;
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c
--- a/sys/kern/sys_process.c
+++ b/sys/kern/sys_process.c
@@ -627,10 +627,8 @@
 	case PT_GETDBREGS:
 		bzero(&r.dbreg, sizeof(r.dbreg));
 		break;
-	case PT_SETREGSET:
-		error = copyin(uap->addr, &r.vec, sizeof(r.vec));
-		break;
 	case PT_GETREGSET:
+	case PT_SETREGSET:
 		error = copyin(uap->addr, &r.vec, sizeof(r.vec));
 		break;
 	case PT_SETREGS: