Index: linux-2.6.18-128.1.6/fs/ext3/super.c
===================================================================
--- linux-2.6.18-128.1.6.orig/fs/ext3/super.c
+++ linux-2.6.18-128.1.6/fs/ext3/super.c
@@ -51,6 +51,8 @@
 #define EXT3_DEFAULT_MAX_DIR_SIZE		0
 #define EXT3_MAX_DIR_SIZE_NAME		"max_dir_size"
 
+static int force_over_8tb;
+
 static int ext3_load_journal(struct super_block *, struct ext3_super_block *,
 			     unsigned long journal_devnum);
 static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
@@ -715,7 +717,7 @@ enum {
 	Opt_iopen, Opt_noiopen, Opt_iopen_nopriv,
 	Opt_grpquota,
 	Opt_extents, Opt_noextents, Opt_bigendian_extents, Opt_extdebug,
-	Opt_mballoc, Opt_nomballoc, Opt_stripe,
+	Opt_mballoc, Opt_nomballoc, Opt_stripe, Opt_force_over_8tb,
 };
 
 static match_table_t tokens = {
@@ -779,6 +781,7 @@ static match_table_t tokens = {
 	{Opt_mballoc, "mballoc"},
 	{Opt_nomballoc, "nomballoc"},
 	{Opt_stripe, "stripe=%u"},
+	{Opt_force_over_8tb, "force_over_8tb"},
 	{Opt_err, NULL},
 	{Opt_resize, "resize"},
 };
@@ -1157,6 +1160,9 @@ clear_qf_name:
 				return 0;
 			sbi->s_stripe = option;
 			break;
+		case Opt_force_over_8tb:
+			force_over_8tb = 1;
+			break;
 		default:
 			printk (KERN_ERR
 				"EXT3-fs: Unrecognized mount option \"%s\" "
@@ -2248,6 +2254,17 @@ static int ext3_fill_super (struct super
 		goto failed_mount;
 	}
 
+	if (le32_to_cpu(es->s_blocks_count) >
+	    ((0x80000000000ULL >> sb->s_blocksize_bits) - 1)) {
+		if (force_over_8tb == 0) {
+			printk(KERN_ERR "EXT3-fs does not support filesystems "
+			       "greater than 8TB and can cause data corruption."
+			       "Use \"force_over_8tb\" mount option to override."
+			       "\n");
+			goto failed_mount;
+		}
+	}
+
 	if (EXT3_BLOCKS_PER_GROUP(sb) == 0)
 		goto cantfind_ext3;
 	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -