diff --git a/etc/rc.subr b/etc/rc.subr
index cc7d89335817..19842f579426 100644
--- a/etc/rc.subr
+++ b/etc/rc.subr
@@ -52,6 +52,14 @@ ID="/usr/bin/id"
 IDCMD="if [ -x $ID ]; then $ID -un; fi"
 PS="/bin/ps -ww"
 JID=0
+# rc_service provides the path to the service script that we are executing.
+# This is not being set here in an execution context, necessarily, so it's
+# really just a reasonable guess, and it will get overwritten later if
+# we are executing from some other means than direct execution by service(8)
+# or manual invocation of the service script.  The prime example of this is
+# during system startup, all rc scripts will be invoked via /etc/rc, so
+# run_rc_script will overwrite rc_service with the file being sourced.
+rc_service="$0"
 
 #
 #	functions
@@ -863,6 +871,9 @@ check_startmsgs()
 #			by $flags from the environment.
 #			This variable may be changed by the precmd method.
 #
+#       rc_service      Path to the service being executed, in case the service
+#                       needs to re-invoke itself.
+#
 #	rc_pid		PID of command (if appropriate)
 #
 #	rc_fast		Not empty if "fast" was provided (q.v.)
@@ -1333,6 +1344,7 @@ run_rc_script()
 		required_vars
 	eval unset ${_arg}_cmd ${_arg}_precmd ${_arg}_postcmd
 
+	rc_service="$_file"
 	case "$_file" in
 	/etc/rc.d/*.sh)			# no longer allowed in the base
 		warn "Ignoring old-style startup script $_file"
diff --git a/sbin/newfs_msdos/mkfs_msdos.c b/sbin/newfs_msdos/mkfs_msdos.c
index acd9d1ebdad9..ed86aded6e72 100644
--- a/sbin/newfs_msdos/mkfs_msdos.c
+++ b/sbin/newfs_msdos/mkfs_msdos.c
@@ -249,6 +249,7 @@ mkfs_msdos(const char *fname, const char *dtype, const struct msdos_options *op)
 
     img = NULL;
     rv = -1;
+    fd = fd1 = -1;
 
     if (o.block_size && o.sectors_per_cluster) {
 	warnx("Cannot specify both block size and sectors per cluster");
@@ -315,15 +316,8 @@ mkfs_msdos(const char *fname, const char *dtype, const struct msdos_options *op)
 	bpb.bpbHiddenSecs = o.hidden_sectors;
     if (!(o.floppy || (o.drive_heads && o.sectors_per_track &&
 	o.bytes_per_sector && o.size && o.hidden_sectors_set))) {
-	off_t delta;
 	getdiskinfo(fd, fname, dtype, o.hidden_sectors_set, &bpb);
 	bpb.bpbHugeSectors -= (o.offset / bpb.bpbBytesPerSec);
-	delta = bpb.bpbHugeSectors % bpb.bpbSecPerTrack;
-	if (delta != 0) {
-	    warnx("trim %d sectors to adjust to a multiple of %d",
-		(int)delta, bpb.bpbSecPerTrack);
-	    bpb.bpbHugeSectors -= delta;
-	}
 	if (bpb.bpbSecPerClust == 0) {	/* set defaults */
 	    if (bpb.bpbHugeSectors <= 6000)	/* about 3MB -> 512 bytes */
 		bpb.bpbSecPerClust = 1;
@@ -598,7 +592,7 @@ mkfs_msdos(const char *fname, const char *dtype, const struct msdos_options *op)
 	bpb.bpbMedia = !bpb.bpbHiddenSecs ? 0xf0 : 0xf8;
     if (fat == 32)
 	bpb.bpbRootClust = RESFTE;
-    if (bpb.bpbHiddenSecs + bpb.bpbHugeSectors <= MAXU16) {
+    if (bpb.bpbHugeSectors <= MAXU16) {
 	bpb.bpbSectors = bpb.bpbHugeSectors;
 	bpb.bpbHugeSectors = 0;
     }
@@ -758,6 +752,10 @@ mkfs_msdos(const char *fname, const char *dtype, const struct msdos_options *op)
     rv = 0;
 done:
     free(img);
+    if (fd != -1)
+	    close(fd);
+    if (fd1 != -1)
+	    close(fd1);
 
     return rv;
 }
diff --git a/share/man/man8/rc.subr.8 b/share/man/man8/rc.subr.8
index 47959f3ea0a5..05124ba1dddb 100644
--- a/share/man/man8/rc.subr.8
+++ b/share/man/man8/rc.subr.8
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd February 4, 2016
+.Dd January 15, 2019
 .Dt RC.SUBR 8
 .Os
 .Sh NAME
@@ -764,7 +764,7 @@ The following variables are available to the methods
 as well as after
 .Ic run_rc_command
 has completed:
-.Bl -tag -width ".Va rc_flags" -offset indent
+.Bl -tag -width ".Va rc_service" -offset indent
 .It Va rc_arg
 Argument provided to
 .Ic run_rc_command ,
@@ -778,6 +778,8 @@ unless overridden by the environment variable
 This variable may be changed by the
 .Ar argument Ns Va _precmd
 method.
+.It Va rc_service
+Path to the service script being executed, in case it needs to re-invoke itself.
 .It Va rc_pid
 PID of
 .Va command