diff --git a/sys/fs/msdosfs/msdosfs_vfsops.c b/sys/fs/msdosfs/msdosfs_vfsops.c
index cf68ec1e42c9..aca16049abff 100644
--- a/sys/fs/msdosfs/msdosfs_vfsops.c
+++ b/sys/fs/msdosfs/msdosfs_vfsops.c
@@ -51,6 +51,8 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/conf.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
 #include <sys/namei.h>
 #include <sys/proc.h>
 #include <sys/kernel.h>
@@ -61,7 +63,6 @@
 #include <sys/fcntl.h>
 #include <sys/malloc.h>
 #include <sys/stat.h> 				/* defines ALLPERMS */
-#include <sys/mutex.h>
 
 #include <fs/msdosfs/bpb.h>
 #include <fs/msdosfs/bootsect.h>
@@ -70,8 +71,6 @@
 #include <fs/msdosfs/msdosfsmount.h>
 #include <fs/msdosfs/fat.h>
 
-#define MSDOSFS_DFLTBSIZE       4096
-
 #if 1 /*def PC98*/
 /*
  * XXX - The boot signature formatted by NEC PC-98 DOS looks like a
@@ -86,6 +85,8 @@
 MALLOC_DEFINE(M_MSDOSFSMNT, "MSDOSFS mount", "MSDOSFS mount structure");
 static MALLOC_DEFINE(M_MSDOSFSFAT, "MSDOSFS FAT", "MSDOSFS file allocation table");
 
+int bdemsd = 0;
+
 static int	update_mp(struct mount *mp, struct msdosfs_args *argp);
 static int	mountmsdosfs(struct vnode *devvp, struct mount *mp,
 		    struct thread *td, struct msdosfs_args *argp);
@@ -142,6 +143,67 @@ update_mp(mp, argp)
 	return 0;
 }
 
+#if 0
+int
+msdosfs_mountroot()
+{
+	register struct mount *mp;
+	struct thread *td = curthread;	/* XXX */
+	size_t size;
+	int error;
+	struct msdosfs_args args;
+
+	if (root_device->dv_class != DV_DISK)
+		return (ENODEV);
+
+	/*
+	 * Get vnodes for swapdev and rootdev.
+	 */
+	if (bdevvp(rootdev, &rootvp))
+		panic("msdosfs_mountroot: can't setup rootvp");
+
+	mp = malloc((u_long)sizeof(struct mount), M_MOUNT, M_WAITOK | M_ZERO);
+	mp->mnt_op = &msdosfs_vfsops;
+	mp->mnt_flag = 0;
+	TAILQ_INIT(&mp->mnt_nvnodelist);
+	TAILQ_INIT(&mp->mnt_reservedvnlist);
+
+	args.flags = 0;
+	args.uid = 0;
+	args.gid = 0;
+	args.mask = 0777;
+
+	if ((error = mountmsdosfs(rootvp, mp, p, &args)) != 0) {
+		free(mp, M_MOUNT);
+		return (error);
+	}
+
+	if ((error = update_mp(mp, &args)) != 0) {
+		(void)msdosfs_unmount(mp, 0, td);
+		free(mp, M_MOUNT);
+		return (error);
+	}
+
+	if ((error = vfs_lock(mp)) != 0) {
+		(void)msdosfs_unmount(mp, 0, td);
+		free(mp, M_MOUNT);
+		return (error);
+	}
+
+	TAILQ_INSERT_TAIL(&mountlist, mp, mnt_list);
+	mp->mnt_vnodecovered = NULLVP;
+	(void) copystr("/", mp->mnt_stat.f_mntonname, MNAMELEN - 1,
+	    &size);
+	bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
+	(void) copystr(ROOTNAME, mp->mnt_stat.f_mntfromname, MNAMELEN - 1,
+	    &size);
+	bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
+	(void)msdosfs_statfs(mp, &mp->mnt_stat, td);
+	vfs_unlock(mp);
+	return (0);
+}
+#endif
+
 /*
  * mp - path - addr in user space of mount point (ie /usr or whatever)
  * data - addr in user space of mount params including the name of the block
@@ -330,9 +392,9 @@ mountmsdosfs(devvp, mp, td, argp)
 	 * Read the boot sector of the filesystem, and then check the
 	 * boot signature.  If not a dos boot sector then error out.
 	 *
-	 * NOTE: 2048 is a maximum sector size in current...
+	 * NOTE: 8192 is a magic size that works for ffs.
 	 */
-	error = bread(devvp, 0, 2048, NOCRED, &bp);
+	error = bread(devvp, 0, 8192, NOCRED, &bp);
 	if (error)
 		goto error_exit;
 	bp->b_flags |= B_AGE;
@@ -493,7 +555,7 @@ mountmsdosfs(devvp, mp, td, argp)
 	if (FAT12(pmp))
 		pmp->pm_fatblocksize = 3 * pmp->pm_BytesPerSec;
 	else
-		pmp->pm_fatblocksize = MSDOSFS_DFLTBSIZE;
+		pmp->pm_fatblocksize = PAGE_SIZE;	/* XXX */
 
 	pmp->pm_fatblocksec = pmp->pm_fatblocksize / DEV_BSIZE;
 	pmp->pm_bnshift = ffs(DEV_BSIZE) - 1;
@@ -546,8 +608,9 @@ mountmsdosfs(devvp, mp, td, argp)
 	 * Check and validate (or perhaps invalidate?) the fsinfo structure?
 	 */
 	if (pmp->pm_fsinfo && pmp->pm_nxtfree > pmp->pm_maxcluster) {
-		printf("Next free cluster in FSInfo (%u) exceeds maxcluster (%u)\n",
-				pmp->pm_nxtfree, pmp->pm_maxcluster);
+		printf(
+		"Next free cluster in FSInfo (%lu) exceeds maxcluster (%lu)\n",
+		    pmp->pm_nxtfree, pmp->pm_maxcluster);
 		error = EINVAL;
 		goto error_exit;
 	}
@@ -751,7 +814,7 @@ msdosfs_sync(mp, waitfor, cred, td)
 		if (vp->v_type == VNON ||
 		    ((dep->de_flag &
 		    (DE_ACCESS | DE_CREATE | DE_UPDATE | DE_MODIFIED)) == 0 &&
-		    (TAILQ_EMPTY(&vp->v_dirtyblkhd) || waitfor == MNT_LAZY))) {
+		    TAILQ_EMPTY(&vp->v_dirtyblkhd))) {
 			mtx_unlock(&vp->v_interlock);
 			mtx_lock(&mntvnode_mtx);
 			continue;
@@ -777,6 +840,12 @@ msdosfs_sync(mp, waitfor, cred, td)
 	 */
 	if (waitfor != MNT_LAZY) {
 		vn_lock(pmp->pm_devvp, LK_EXCLUSIVE | LK_RETRY, td);
+		if (!TAILQ_EMPTY(&pmp->pm_devvp->v_dirtyblkhd)) {
+			if (bdemsd)
+				Debugger("msdosfs: flush fs control info");
+			else
+				printf("msdosfs: flush fs control info\n");
+		}
 		error = VOP_FSYNC(pmp->pm_devvp, cred, waitfor, td);
 		if (error)
 			allerror = error;