diff mbox

[2/2] debugfs, e2fsck: fix s_desc_size handling

Message ID 1387268344-8320-2-git-send-email-adilger@dilger.ca
State Accepted, archived
Headers show

Commit Message

Andreas Dilger Dec. 17, 2013, 8:19 a.m. UTC 
The s_desc_size in the superblock specifies the group descriptor
size in bytes, but in various places the EXT4_FEATURE_INCOMPAT_64BIT
flag implies that the descriptor size is EXT2_MIN_DESC_SIZE_64BIT
(64 bytes) instead of checking the actual size.  In other places,
the s_desc_size field is used without checking for INCOMPAT_64BIT.

In the case of ext2fs_group_desc() the s_desc_size was being ignored,
and assumed to be sizeof(struct ext4_group_desc), which would result
in garbage for any but the first group descriptor.  Similarly, in
ext2fs_group_desc_csum() and print_csum() they assumed that the
maximum group descriptor size was sizeof(struct ext4_group_desc).
Fix these functions to use the actual superblock s_desc_size if
INCOMPAT_64BIT.

Conversely, in ext2fs_swap_group_desc2() s_desc_size was used
without checking for INCOMPAT_64BIT being set.

The e2fsprogs behaviour is different than that of the kernel,
which always checks INCOMPAT_64BIT, and only uses s_desc_size to
determine the offset of group descriptors and what range of bytes
to checksum.

Allow specifying the s_desc_size field at mke2fs time with the
"-E desc_size=NNN" option.  Allow a power-of-two s_desc_size
value up to s_blocksize if INCOMPAT_64BIT is specified.  This
is not expected to be used by regular users at this time, so it
is not currently documented in the mke2fs usage or man page.

Add m_desc_size_128, f_desc_size_128, and f_desc_bad test cases to
verify mke2fs and e2fsck handling of larger group descriptor sizes.

Signed-off-by: Andreas Dilger <adilger@dilger.ca>
---
 debugfs/set_fields.c           |   11 +-
 e2fsck/iscan.c                 |    2 +-
 lib/ext2fs/blknum.c            |    7 +-
 lib/ext2fs/csum.c              |   24 +-
 lib/ext2fs/initialize.c        |    5 +-
 lib/ext2fs/swapfs.c            |    6 +-
 misc/mke2fs.c                  |   33 ++-
 tests/f_desc_size_128/expect.1 |    7 +
 tests/f_desc_size_128/expect.2 |    7 +
 tests/f_desc_size_128/image.gz |  Bin 0 -> 11547 bytes
 tests/f_desc_size_128/name     |    1 +
 tests/f_desc_size_bad/expect.1 |   11 +
 tests/f_desc_size_bad/expect.2 |    7 +
 tests/f_desc_size_bad/script   |   17 +
 tests/m_desc_size_128/expect.1 |  849 ++++++++++++++++++++++++++++++++++++++++
 tests/m_desc_size_128/script   |    4 +
 16 files changed, 957 insertions(+), 34 deletions(-)
 create mode 100644 tests/f_desc_size_128/expect.1
 create mode 100644 tests/f_desc_size_128/expect.2
 create mode 100644 tests/f_desc_size_128/image.gz
 create mode 100644 tests/f_desc_size_128/name
 create mode 100644 tests/f_desc_size_bad/expect.1
 create mode 100644 tests/f_desc_size_bad/expect.2
 create mode 100644 tests/f_desc_size_bad/script
 create mode 100644 tests/m_desc_size_128/expect.1
 create mode 100644 tests/m_desc_size_128/script

Comments

Theodore Ts'o Dec. 23, 2013, 9:07 p.m. UTC | #1 
On Tue, Dec 17, 2013 at 01:19:04AM -0700, Andreas Dilger wrote:
> The s_desc_size in the superblock specifies the group descriptor
> size in bytes, but in various places the EXT4_FEATURE_INCOMPAT_64BIT
> flag implies that the descriptor size is EXT2_MIN_DESC_SIZE_64BIT
> (64 bytes) instead of checking the actual size.  In other places,
> the s_desc_size field is used without checking for INCOMPAT_64BIT.
> 
> In the case of ext2fs_group_desc() the s_desc_size was being ignored,
> and assumed to be sizeof(struct ext4_group_desc), which would result
> in garbage for any but the first group descriptor.  Similarly, in
> ext2fs_group_desc_csum() and print_csum() they assumed that the
> maximum group descriptor size was sizeof(struct ext4_group_desc).
> Fix these functions to use the actual superblock s_desc_size if
> INCOMPAT_64BIT.
> 
> Conversely, in ext2fs_swap_group_desc2() s_desc_size was used
> without checking for INCOMPAT_64BIT being set.
> 
> The e2fsprogs behaviour is different than that of the kernel,
> which always checks INCOMPAT_64BIT, and only uses s_desc_size to
> determine the offset of group descriptors and what range of bytes
> to checksum.
> 
> Allow specifying the s_desc_size field at mke2fs time with the
> "-E desc_size=NNN" option.  Allow a power-of-two s_desc_size
> value up to s_blocksize if INCOMPAT_64BIT is specified.  This
> is not expected to be used by regular users at this time, so it
> is not currently documented in the mke2fs usage or man page.
> 
> Add m_desc_size_128, f_desc_size_128, and f_desc_bad test cases to
> verify mke2fs and e2fsck handling of larger group descriptor sizes.
> 
> Signed-off-by: Andreas Dilger <adilger@dilger.ca>

Thanks, applied.

						- Ted
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diff mbox

Patch

diff --git a/debugfs/set_fields.c b/debugfs/set_fields.c
index 064de39..9c3b000 100644
--- a/debugfs/set_fields.c
+++ b/debugfs/set_fields.c
@@ -702,11 +702,14 @@  void do_set_block_group_descriptor(int argc, char *argv[])
 	int			size;
 
 	/*
-	 *Determine whether we are editing an ext2 or ext4 block
-	 * group descriptor
+	 * Determine whether we are editing an ext2 or ext4 block group
+	 * descriptor.  Descriptors larger than ext4_group_desc cannot
+	 * have their fields edited yet, because they do not have any
+	 * names assigned.  When that happens, this function needs to
+	 * be updated for the new descriptor struct and fields.
 	 */
-	if (current_fs && current_fs->super->s_feature_incompat &
-	    EXT4_FEATURE_INCOMPAT_64BIT) {
+	if (current_fs &&
+	    EXT2_DESC_SIZE(current_fs->super) >= EXT2_MIN_DESC_SIZE_64BIT) {
 		table = ext4_bg_fields;
 		edit = &set_gd4;
 		size = sizeof(set_gd4);
diff --git a/e2fsck/iscan.c b/e2fsck/iscan.c
index e23d2ad..52cad11 100644
--- a/e2fsck/iscan.c
+++ b/e2fsck/iscan.c
@@ -107,7 +107,7 @@  int main (int argc, char *argv[])
 	retval = ext2fs_open(device_name, 0,
 			     0, 0, unix_io_manager, &fs);
 	if (retval) {
-		com_err(program_name, retval, _("while trying to open %s"),
+		com_err(program_name, retval, _("while trying to open '%s'"),
 			device_name);
 		exit(1);
 	}
diff --git a/lib/ext2fs/blknum.c b/lib/ext2fs/blknum.c
index 33da7d6..8ced1ee 100644
--- a/lib/ext2fs/blknum.c
+++ b/lib/ext2fs/blknum.c
@@ -187,11 +187,8 @@  struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
 					  struct opaque_ext2_group_desc *gdp,
 					  dgrp_t group)
 {
-	if (fs->super->s_desc_size >= EXT2_MIN_DESC_SIZE_64BIT)
-		return (struct ext2_group_desc *)
-			((struct ext4_group_desc *) gdp + group);
-	else
-		return (struct ext2_group_desc *) gdp + group;
+	return (struct ext2_group_desc *)((char *)gdp +
+					  group * EXT2_DESC_SIZE(fs->super));
 }
 
 /* Do the same but as an ext4 group desc for internal use here */
diff --git a/lib/ext2fs/csum.c b/lib/ext2fs/csum.c
index 5ee3445..77d3d17 100644
--- a/lib/ext2fs/csum.c
+++ b/lib/ext2fs/csum.c
@@ -32,19 +32,11 @@ 
 
 __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group)
 {
-	__u16 crc = 0;
-	struct ext2_group_desc *desc;
-	size_t size;
-
-	size = fs->super->s_desc_size;
-	if (size < EXT2_MIN_DESC_SIZE)
-		size = EXT2_MIN_DESC_SIZE;
-	if (size > sizeof(struct ext4_group_desc)) {
-		printf("%s: illegal s_desc_size(%zd)\n", __func__, size);
-		size = sizeof(struct ext4_group_desc);
-	}
-
-	desc = ext2fs_group_desc(fs, fs->group_desc, group);
+	struct ext2_group_desc *desc = ext2fs_group_desc(fs, fs->group_desc,
+							 group);
+	size_t size = EXT2_DESC_SIZE(fs->super);
+	size_t offset;
+	__u16 crc;
 
 	if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
 		size_t offset = offsetof(struct ext2_group_desc, bg_checksum);
@@ -175,11 +167,7 @@  void print_csum(const char *msg, ext2_filsys fs, dgrp_t group)
 #endif
 
 	desc = ext2fs_group_desc(fs, fs->group_desc, group);
-	size = fs->super->s_desc_size;
-	if (size < EXT2_MIN_DESC_SIZE)
-		size = EXT2_MIN_DESC_SIZE;
-	if (size > sizeof(struct ext4_group_desc))
-		size = sizeof(struct ext4_group_desc);
+	size = EXT2_DESC_SIZE(fs->super);
 #ifdef WORDS_BIGENDIAN
 	/* Have to swab back to little-endian to do the checksum */
 	memcpy(&swabdesc, desc, size);
diff --git a/lib/ext2fs/initialize.c b/lib/ext2fs/initialize.c
index 5afdc27..2db8b3c 100644
--- a/lib/ext2fs/initialize.c
+++ b/lib/ext2fs/initialize.c
@@ -272,8 +272,9 @@  retry:
 		goto cleanup;
 	}
 
-	if (super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
-		super->s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
+	set_field(s_desc_size,
+		  super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT ?
+		  EXT2_MIN_DESC_SIZE_64BIT : 0);
 
 	fs->desc_blocks = ext2fs_div_ceil(fs->group_desc_count,
 					  EXT2_DESC_PER_BLOCK(super));
diff --git a/lib/ext2fs/swapfs.c b/lib/ext2fs/swapfs.c
index 7c99373..9891dda 100644
--- a/lib/ext2fs/swapfs.c
+++ b/lib/ext2fs/swapfs.c
@@ -103,6 +103,8 @@  void ext2fs_swap_super(struct ext2_super_block * sb)
 
 void ext2fs_swap_group_desc2(ext2_filsys fs, struct ext2_group_desc *gdp)
 {
+	struct ext4_group_desc *gdp4 = (struct ext4_group_desc *)gdp;
+
 	/* Do the 32-bit parts first */
 	gdp->bg_block_bitmap = ext2fs_swab32(gdp->bg_block_bitmap);
 	gdp->bg_inode_bitmap = ext2fs_swab32(gdp->bg_inode_bitmap);
@@ -119,12 +121,10 @@  void ext2fs_swap_group_desc2(ext2_filsys fs, struct ext2_group_desc *gdp)
 	gdp->bg_itable_unused = ext2fs_swab16(gdp->bg_itable_unused);
 	gdp->bg_checksum = ext2fs_swab16(gdp->bg_checksum);
 	/* If we're 32-bit, we're done */
-	if (fs && (!fs->super->s_desc_size ||
-		   (fs->super->s_desc_size < EXT2_MIN_DESC_SIZE_64BIT)))
+	if (fs == NULL || EXT4_DESC_SIZE(fs->super) < EXT2_MIN_DESC_SIZE_64BIT)
 		return;
 
 	/* Swap the 64-bit parts */
-	struct ext4_group_desc *gdp4 = (struct ext4_group_desc *) gdp;
 	gdp4->bg_block_bitmap_hi = ext2fs_swab32(gdp4->bg_block_bitmap_hi);
 	gdp4->bg_inode_bitmap_hi = ext2fs_swab32(gdp4->bg_inode_bitmap_hi);
 	gdp4->bg_inode_table_hi = ext2fs_swab32(gdp4->bg_inode_table_hi);
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index b7b93b0..aa72fce 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -679,7 +679,38 @@  static void parse_extended_opts(struct ext2_super_block *param,
 			*arg = 0;
 			arg++;
 		}
-		if (strcmp(token, "mmp_update_interval") == 0) {
+		if (strcmp(token, "desc-size") == 0 ||
+		    strcmp(token, "desc_size") == 0) {
+			int desc_size;
+
+			if (!(fs_param.s_feature_incompat &
+			      EXT4_FEATURE_INCOMPAT_64BIT)) {
+				fprintf(stderr,
+					_("%s requires '-O 64bit'\n"), token);
+				r_usage++;
+				continue;
+			}
+			if (param->s_reserved_gdt_blocks != 0) {
+				fprintf(stderr,
+					_("'%s' must be before 'resize=%u'\n"),
+					token, param->s_reserved_gdt_blocks);
+				r_usage++;
+				continue;
+			}
+			if (!arg) {
+				r_usage++;
+				badopt = token;
+				continue;
+			}
+			desc_size = strtoul(arg, &p, 0);
+			if (*p || (desc_size & (desc_size - 1))) {
+				fprintf(stderr,
+					_("Invalid desc_size: '%s'\n"), arg);
+				r_usage++;
+				continue;
+			}
+			param->s_desc_size = desc_size;
+		} else if (strcmp(token, "mmp_update_interval") == 0) {
 			if (!arg) {
 				r_usage++;
 				badopt = token;
diff --git a/tests/f_desc_size_128/expect.1 b/tests/f_desc_size_128/expect.1
new file mode 100644
index 0000000..a62f112
--- /dev/null
+++ b/tests/f_desc_size_128/expect.1
@@ -0,0 +1,7 @@ 
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/256 files (0.0% non-contiguous), 150/8192 blocks
+Exit status is 0
diff --git a/tests/f_desc_size_128/expect.2 b/tests/f_desc_size_128/expect.2
new file mode 100644
index 0000000..a62f112
--- /dev/null
+++ b/tests/f_desc_size_128/expect.2
@@ -0,0 +1,7 @@ 
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/256 files (0.0% non-contiguous), 150/8192 blocks
+Exit status is 0
diff --git a/tests/f_desc_size_128/image.gz b/tests/f_desc_size_128/image.gz
new file mode 100644
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diff --git a/tests/f_desc_size_128/name b/tests/f_desc_size_128/name
new file mode 100644
index 0000000..f09e003
--- /dev/null
+++ b/tests/f_desc_size_128/name
@@ -0,0 +1 @@ 
+128-byte group descriptors
diff --git a/tests/f_desc_size_bad/expect.1 b/tests/f_desc_size_bad/expect.1
new file mode 100644
index 0000000..009ee04
--- /dev/null
+++ b/tests/f_desc_size_bad/expect.1
@@ -0,0 +1,11 @@ 
+ext2fs_check_desc: Block group descriptor size incorrect
+../e2fsck/e2fsck: Group descriptors look bad... trying backup blocks...
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 11/32 files (0.0% non-contiguous), 801/2048 blocks
+Exit status is 1
diff --git a/tests/f_desc_size_bad/expect.2 b/tests/f_desc_size_bad/expect.2
new file mode 100644
index 0000000..d1429fd
--- /dev/null
+++ b/tests/f_desc_size_bad/expect.2
@@ -0,0 +1,7 @@ 
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/32 files (0.0% non-contiguous), 801/2048 blocks
+Exit status is 0
diff --git a/tests/f_desc_size_bad/script b/tests/f_desc_size_bad/script
new file mode 100644
index 0000000..5440328
--- /dev/null
+++ b/tests/f_desc_size_bad/script
@@ -0,0 +1,17 @@ 
+if ! test -x $DEBUGFS_EXE; then
+        echo "$test_name: $test_description: skipped"
+	return 0
+fi
+
+DESCRIPTION="bad superblock s_desc_size"
+SKIP_GUNZIP=true
+touch $TMPFILE
+$MKE2FS -F -o Linux -O 64bit,extents -N 32 -b 1024 -g 512 -E desc_size=128 $TMPFILE 2048 > $test_name.log 2>&1
+$DEBUGFS -R "ssv desc_size 129" -w $TMPFILE >> $test_name.log 2>&1
+
+E2FSCK_TIME=200704102100
+export E2FSCK_TIME
+
+. $cmd_dir/run_e2fsck
+
+unset E2FSCK_TIME
diff --git a/tests/m_desc_size_128/expect.1 b/tests/m_desc_size_128/expect.1
new file mode 100644
index 0000000..8f01591
--- /dev/null
+++ b/tests/m_desc_size_128/expect.1
@@ -0,0 +1,849 @@ 
+Filesystem label=
+OS type: Linux
+Block size=1024 (log=0)
+Fragment size=1024 (log=0)
+Stride=0 blocks, Stripe width=0 blocks
+8192 inodes, 131072 blocks
+6553 blocks (5.00%) reserved for the super user
+First data block=1
+Maximum filesystem blocks=2228224
+128 block groups
+1024 blocks per group, 1024 fragments per group
+64 inodes per group
+Superblock backups stored on blocks: 
+	1025, 3073, 5121, 7169, 9217, 25601, 27649, 50177, 82945, 128001
+
+Allocating group tables:        done                            
+Writing inode tables:        done                            
+Writing superblocks and filesystem accounting information:        done
+
+Filesystem features: ext_attr resize_inode dir_index filetype extent 64bit sparse_super
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 11/8192 files (0.0% non-contiguous), 4298/131072 blocks
+Exit status is 0
+Filesystem volume name:   <none>
+Last mounted on:          <not available>
+Filesystem magic number:  0xEF53
+Filesystem revision #:    1 (dynamic)
+Filesystem features:      ext_attr resize_inode dir_index filetype extent 64bit sparse_super
+Default mount options:    (none)
+Filesystem state:         clean
+Errors behavior:          Continue
+Filesystem OS type:       Linux
+Inode count:              8192
+Block count:              131072
+Reserved block count:     6553
+Free blocks:              126774
+Free inodes:              8181
+First block:              1
+Block size:               1024
+Fragment size:            1024
+Group descriptor size:    128
+Reserved GDT blocks:      256
+Blocks per group:         1024
+Fragments per group:      1024
+Inodes per group:         64
+Inode blocks per group:   8
+Mount count:              0
+Check interval:           15552000 (6 months)
+Reserved blocks uid:      0
+Reserved blocks gid:      0
+First inode:              11
+Inode size:	          128
+Default directory hash:   half_md4
+
+
+Group 0: (Blocks 1-1024)
+  Primary superblock at 1, Group descriptors at 2-17
+  Reserved GDT blocks at 18-273
+  Block bitmap at 274 (+273), Inode bitmap at 275 (+274)
+  Inode table at 276-283 (+275)
+  727 free blocks, 53 free inodes, 2 directories
+  Free blocks: 298-1024
+  Free inodes: 12-64
+Group 1: (Blocks 1025-2048)
+  Backup superblock at 1025, Group descriptors at 1026-1041
+  Reserved GDT blocks at 1042-1297
+  Block bitmap at 1298 (+273), Inode bitmap at 1299 (+274)
+  Inode table at 1300-1307 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 1308-2048
+  Free inodes: 65-128
+Group 2: (Blocks 2049-3072)
+  Block bitmap at 2049 (+0), Inode bitmap at 2050 (+1)
+  Inode table at 2051-2058 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 2059-3072
+  Free inodes: 129-192
+Group 3: (Blocks 3073-4096)
+  Backup superblock at 3073, Group descriptors at 3074-3089
+  Reserved GDT blocks at 3090-3345
+  Block bitmap at 3346 (+273), Inode bitmap at 3347 (+274)
+  Inode table at 3348-3355 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 3356-4096
+  Free inodes: 193-256
+Group 4: (Blocks 4097-5120)
+  Block bitmap at 4097 (+0), Inode bitmap at 4098 (+1)
+  Inode table at 4099-4106 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 4107-5120
+  Free inodes: 257-320
+Group 5: (Blocks 5121-6144)
+  Backup superblock at 5121, Group descriptors at 5122-5137
+  Reserved GDT blocks at 5138-5393
+  Block bitmap at 5394 (+273), Inode bitmap at 5395 (+274)
+  Inode table at 5396-5403 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 5404-6144
+  Free inodes: 321-384
+Group 6: (Blocks 6145-7168)
+  Block bitmap at 6145 (+0), Inode bitmap at 6146 (+1)
+  Inode table at 6147-6154 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 6155-7168
+  Free inodes: 385-448
+Group 7: (Blocks 7169-8192)
+  Backup superblock at 7169, Group descriptors at 7170-7185
+  Reserved GDT blocks at 7186-7441
+  Block bitmap at 7442 (+273), Inode bitmap at 7443 (+274)
+  Inode table at 7444-7451 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 7452-8192
+  Free inodes: 449-512
+Group 8: (Blocks 8193-9216)
+  Block bitmap at 8193 (+0), Inode bitmap at 8194 (+1)
+  Inode table at 8195-8202 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 8203-9216
+  Free inodes: 513-576
+Group 9: (Blocks 9217-10240)
+  Backup superblock at 9217, Group descriptors at 9218-9233
+  Reserved GDT blocks at 9234-9489
+  Block bitmap at 9490 (+273), Inode bitmap at 9491 (+274)
+  Inode table at 9492-9499 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 9500-10240
+  Free inodes: 577-640
+Group 10: (Blocks 10241-11264)
+  Block bitmap at 10241 (+0), Inode bitmap at 10242 (+1)
+  Inode table at 10243-10250 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 10251-11264
+  Free inodes: 641-704
+Group 11: (Blocks 11265-12288)
+  Block bitmap at 11265 (+0), Inode bitmap at 11266 (+1)
+  Inode table at 11267-11274 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 11275-12288
+  Free inodes: 705-768
+Group 12: (Blocks 12289-13312)
+  Block bitmap at 12289 (+0), Inode bitmap at 12290 (+1)
+  Inode table at 12291-12298 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 12299-13312
+  Free inodes: 769-832
+Group 13: (Blocks 13313-14336)
+  Block bitmap at 13313 (+0), Inode bitmap at 13314 (+1)
+  Inode table at 13315-13322 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 13323-14336
+  Free inodes: 833-896
+Group 14: (Blocks 14337-15360)
+  Block bitmap at 14337 (+0), Inode bitmap at 14338 (+1)
+  Inode table at 14339-14346 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 14347-15360
+  Free inodes: 897-960
+Group 15: (Blocks 15361-16384)
+  Block bitmap at 15361 (+0), Inode bitmap at 15362 (+1)
+  Inode table at 15363-15370 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 15371-16384
+  Free inodes: 961-1024
+Group 16: (Blocks 16385-17408)
+  Block bitmap at 16385 (+0), Inode bitmap at 16386 (+1)
+  Inode table at 16387-16394 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 16395-17408
+  Free inodes: 1025-1088
+Group 17: (Blocks 17409-18432)
+  Block bitmap at 17409 (+0), Inode bitmap at 17410 (+1)
+  Inode table at 17411-17418 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 17419-18432
+  Free inodes: 1089-1152
+Group 18: (Blocks 18433-19456)
+  Block bitmap at 18433 (+0), Inode bitmap at 18434 (+1)
+  Inode table at 18435-18442 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 18443-19456
+  Free inodes: 1153-1216
+Group 19: (Blocks 19457-20480)
+  Block bitmap at 19457 (+0), Inode bitmap at 19458 (+1)
+  Inode table at 19459-19466 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 19467-20480
+  Free inodes: 1217-1280
+Group 20: (Blocks 20481-21504)
+  Block bitmap at 20481 (+0), Inode bitmap at 20482 (+1)
+  Inode table at 20483-20490 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 20491-21504
+  Free inodes: 1281-1344
+Group 21: (Blocks 21505-22528)
+  Block bitmap at 21505 (+0), Inode bitmap at 21506 (+1)
+  Inode table at 21507-21514 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 21515-22528
+  Free inodes: 1345-1408
+Group 22: (Blocks 22529-23552)
+  Block bitmap at 22529 (+0), Inode bitmap at 22530 (+1)
+  Inode table at 22531-22538 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 22539-23552
+  Free inodes: 1409-1472
+Group 23: (Blocks 23553-24576)
+  Block bitmap at 23553 (+0), Inode bitmap at 23554 (+1)
+  Inode table at 23555-23562 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 23563-24576
+  Free inodes: 1473-1536
+Group 24: (Blocks 24577-25600)
+  Block bitmap at 24577 (+0), Inode bitmap at 24578 (+1)
+  Inode table at 24579-24586 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 24587-25600
+  Free inodes: 1537-1600
+Group 25: (Blocks 25601-26624)
+  Backup superblock at 25601, Group descriptors at 25602-25617
+  Reserved GDT blocks at 25618-25873
+  Block bitmap at 25874 (+273), Inode bitmap at 25875 (+274)
+  Inode table at 25876-25883 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 25884-26624
+  Free inodes: 1601-1664
+Group 26: (Blocks 26625-27648)
+  Block bitmap at 26625 (+0), Inode bitmap at 26626 (+1)
+  Inode table at 26627-26634 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 26635-27648
+  Free inodes: 1665-1728
+Group 27: (Blocks 27649-28672)
+  Backup superblock at 27649, Group descriptors at 27650-27665
+  Reserved GDT blocks at 27666-27921
+  Block bitmap at 27922 (+273), Inode bitmap at 27923 (+274)
+  Inode table at 27924-27931 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 27932-28672
+  Free inodes: 1729-1792
+Group 28: (Blocks 28673-29696)
+  Block bitmap at 28673 (+0), Inode bitmap at 28674 (+1)
+  Inode table at 28675-28682 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 28683-29696
+  Free inodes: 1793-1856
+Group 29: (Blocks 29697-30720)
+  Block bitmap at 29697 (+0), Inode bitmap at 29698 (+1)
+  Inode table at 29699-29706 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 29707-30720
+  Free inodes: 1857-1920
+Group 30: (Blocks 30721-31744)
+  Block bitmap at 30721 (+0), Inode bitmap at 30722 (+1)
+  Inode table at 30723-30730 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 30731-31744
+  Free inodes: 1921-1984
+Group 31: (Blocks 31745-32768)
+  Block bitmap at 31745 (+0), Inode bitmap at 31746 (+1)
+  Inode table at 31747-31754 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 31755-32768
+  Free inodes: 1985-2048
+Group 32: (Blocks 32769-33792)
+  Block bitmap at 32769 (+0), Inode bitmap at 32770 (+1)
+  Inode table at 32771-32778 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 32779-33792
+  Free inodes: 2049-2112
+Group 33: (Blocks 33793-34816)
+  Block bitmap at 33793 (+0), Inode bitmap at 33794 (+1)
+  Inode table at 33795-33802 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 33803-34816
+  Free inodes: 2113-2176
+Group 34: (Blocks 34817-35840)
+  Block bitmap at 34817 (+0), Inode bitmap at 34818 (+1)
+  Inode table at 34819-34826 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 34827-35840
+  Free inodes: 2177-2240
+Group 35: (Blocks 35841-36864)
+  Block bitmap at 35841 (+0), Inode bitmap at 35842 (+1)
+  Inode table at 35843-35850 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 35851-36864
+  Free inodes: 2241-2304
+Group 36: (Blocks 36865-37888)
+  Block bitmap at 36865 (+0), Inode bitmap at 36866 (+1)
+  Inode table at 36867-36874 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 36875-37888
+  Free inodes: 2305-2368
+Group 37: (Blocks 37889-38912)
+  Block bitmap at 37889 (+0), Inode bitmap at 37890 (+1)
+  Inode table at 37891-37898 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 37899-38912
+  Free inodes: 2369-2432
+Group 38: (Blocks 38913-39936)
+  Block bitmap at 38913 (+0), Inode bitmap at 38914 (+1)
+  Inode table at 38915-38922 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 38923-39936
+  Free inodes: 2433-2496
+Group 39: (Blocks 39937-40960)
+  Block bitmap at 39937 (+0), Inode bitmap at 39938 (+1)
+  Inode table at 39939-39946 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 39947-40960
+  Free inodes: 2497-2560
+Group 40: (Blocks 40961-41984)
+  Block bitmap at 40961 (+0), Inode bitmap at 40962 (+1)
+  Inode table at 40963-40970 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 40971-41984
+  Free inodes: 2561-2624
+Group 41: (Blocks 41985-43008)
+  Block bitmap at 41985 (+0), Inode bitmap at 41986 (+1)
+  Inode table at 41987-41994 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 41995-43008
+  Free inodes: 2625-2688
+Group 42: (Blocks 43009-44032)
+  Block bitmap at 43009 (+0), Inode bitmap at 43010 (+1)
+  Inode table at 43011-43018 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 43019-44032
+  Free inodes: 2689-2752
+Group 43: (Blocks 44033-45056)
+  Block bitmap at 44033 (+0), Inode bitmap at 44034 (+1)
+  Inode table at 44035-44042 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 44043-45056
+  Free inodes: 2753-2816
+Group 44: (Blocks 45057-46080)
+  Block bitmap at 45057 (+0), Inode bitmap at 45058 (+1)
+  Inode table at 45059-45066 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 45067-46080
+  Free inodes: 2817-2880
+Group 45: (Blocks 46081-47104)
+  Block bitmap at 46081 (+0), Inode bitmap at 46082 (+1)
+  Inode table at 46083-46090 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 46091-47104
+  Free inodes: 2881-2944
+Group 46: (Blocks 47105-48128)
+  Block bitmap at 47105 (+0), Inode bitmap at 47106 (+1)
+  Inode table at 47107-47114 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 47115-48128
+  Free inodes: 2945-3008
+Group 47: (Blocks 48129-49152)
+  Block bitmap at 48129 (+0), Inode bitmap at 48130 (+1)
+  Inode table at 48131-48138 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 48139-49152
+  Free inodes: 3009-3072
+Group 48: (Blocks 49153-50176)
+  Block bitmap at 49153 (+0), Inode bitmap at 49154 (+1)
+  Inode table at 49155-49162 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 49163-50176
+  Free inodes: 3073-3136
+Group 49: (Blocks 50177-51200)
+  Backup superblock at 50177, Group descriptors at 50178-50193
+  Reserved GDT blocks at 50194-50449
+  Block bitmap at 50450 (+273), Inode bitmap at 50451 (+274)
+  Inode table at 50452-50459 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 50460-51200
+  Free inodes: 3137-3200
+Group 50: (Blocks 51201-52224)
+  Block bitmap at 51201 (+0), Inode bitmap at 51202 (+1)
+  Inode table at 51203-51210 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 51211-52224
+  Free inodes: 3201-3264
+Group 51: (Blocks 52225-53248)
+  Block bitmap at 52225 (+0), Inode bitmap at 52226 (+1)
+  Inode table at 52227-52234 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 52235-53248
+  Free inodes: 3265-3328
+Group 52: (Blocks 53249-54272)
+  Block bitmap at 53249 (+0), Inode bitmap at 53250 (+1)
+  Inode table at 53251-53258 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 53259-54272
+  Free inodes: 3329-3392
+Group 53: (Blocks 54273-55296)
+  Block bitmap at 54273 (+0), Inode bitmap at 54274 (+1)
+  Inode table at 54275-54282 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 54283-55296
+  Free inodes: 3393-3456
+Group 54: (Blocks 55297-56320)
+  Block bitmap at 55297 (+0), Inode bitmap at 55298 (+1)
+  Inode table at 55299-55306 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 55307-56320
+  Free inodes: 3457-3520
+Group 55: (Blocks 56321-57344)
+  Block bitmap at 56321 (+0), Inode bitmap at 56322 (+1)
+  Inode table at 56323-56330 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 56331-57344
+  Free inodes: 3521-3584
+Group 56: (Blocks 57345-58368)
+  Block bitmap at 57345 (+0), Inode bitmap at 57346 (+1)
+  Inode table at 57347-57354 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 57355-58368
+  Free inodes: 3585-3648
+Group 57: (Blocks 58369-59392)
+  Block bitmap at 58369 (+0), Inode bitmap at 58370 (+1)
+  Inode table at 58371-58378 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 58379-59392
+  Free inodes: 3649-3712
+Group 58: (Blocks 59393-60416)
+  Block bitmap at 59393 (+0), Inode bitmap at 59394 (+1)
+  Inode table at 59395-59402 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 59403-60416
+  Free inodes: 3713-3776
+Group 59: (Blocks 60417-61440)
+  Block bitmap at 60417 (+0), Inode bitmap at 60418 (+1)
+  Inode table at 60419-60426 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 60427-61440
+  Free inodes: 3777-3840
+Group 60: (Blocks 61441-62464)
+  Block bitmap at 61441 (+0), Inode bitmap at 61442 (+1)
+  Inode table at 61443-61450 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 61451-62464
+  Free inodes: 3841-3904
+Group 61: (Blocks 62465-63488)
+  Block bitmap at 62465 (+0), Inode bitmap at 62466 (+1)
+  Inode table at 62467-62474 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 62475-63488
+  Free inodes: 3905-3968
+Group 62: (Blocks 63489-64512)
+  Block bitmap at 63489 (+0), Inode bitmap at 63490 (+1)
+  Inode table at 63491-63498 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 63499-64512
+  Free inodes: 3969-4032
+Group 63: (Blocks 64513-65536)
+  Block bitmap at 64513 (+0), Inode bitmap at 64514 (+1)
+  Inode table at 64515-64522 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 64523-65536
+  Free inodes: 4033-4096
+Group 64: (Blocks 65537-66560)
+  Block bitmap at 65537 (+0), Inode bitmap at 65538 (+1)
+  Inode table at 65539-65546 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 65547-66560
+  Free inodes: 4097-4160
+Group 65: (Blocks 66561-67584)
+  Block bitmap at 66561 (+0), Inode bitmap at 66562 (+1)
+  Inode table at 66563-66570 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 66571-67584
+  Free inodes: 4161-4224
+Group 66: (Blocks 67585-68608)
+  Block bitmap at 67585 (+0), Inode bitmap at 67586 (+1)
+  Inode table at 67587-67594 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 67595-68608
+  Free inodes: 4225-4288
+Group 67: (Blocks 68609-69632)
+  Block bitmap at 68609 (+0), Inode bitmap at 68610 (+1)
+  Inode table at 68611-68618 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 68619-69632
+  Free inodes: 4289-4352
+Group 68: (Blocks 69633-70656)
+  Block bitmap at 69633 (+0), Inode bitmap at 69634 (+1)
+  Inode table at 69635-69642 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 69643-70656
+  Free inodes: 4353-4416
+Group 69: (Blocks 70657-71680)
+  Block bitmap at 70657 (+0), Inode bitmap at 70658 (+1)
+  Inode table at 70659-70666 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 70667-71680
+  Free inodes: 4417-4480
+Group 70: (Blocks 71681-72704)
+  Block bitmap at 71681 (+0), Inode bitmap at 71682 (+1)
+  Inode table at 71683-71690 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 71691-72704
+  Free inodes: 4481-4544
+Group 71: (Blocks 72705-73728)
+  Block bitmap at 72705 (+0), Inode bitmap at 72706 (+1)
+  Inode table at 72707-72714 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 72715-73728
+  Free inodes: 4545-4608
+Group 72: (Blocks 73729-74752)
+  Block bitmap at 73729 (+0), Inode bitmap at 73730 (+1)
+  Inode table at 73731-73738 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 73739-74752
+  Free inodes: 4609-4672
+Group 73: (Blocks 74753-75776)
+  Block bitmap at 74753 (+0), Inode bitmap at 74754 (+1)
+  Inode table at 74755-74762 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 74763-75776
+  Free inodes: 4673-4736
+Group 74: (Blocks 75777-76800)
+  Block bitmap at 75777 (+0), Inode bitmap at 75778 (+1)
+  Inode table at 75779-75786 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 75787-76800
+  Free inodes: 4737-4800
+Group 75: (Blocks 76801-77824)
+  Block bitmap at 76801 (+0), Inode bitmap at 76802 (+1)
+  Inode table at 76803-76810 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 76811-77824
+  Free inodes: 4801-4864
+Group 76: (Blocks 77825-78848)
+  Block bitmap at 77825 (+0), Inode bitmap at 77826 (+1)
+  Inode table at 77827-77834 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 77835-78848
+  Free inodes: 4865-4928
+Group 77: (Blocks 78849-79872)
+  Block bitmap at 78849 (+0), Inode bitmap at 78850 (+1)
+  Inode table at 78851-78858 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 78859-79872
+  Free inodes: 4929-4992
+Group 78: (Blocks 79873-80896)
+  Block bitmap at 79873 (+0), Inode bitmap at 79874 (+1)
+  Inode table at 79875-79882 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 79883-80896
+  Free inodes: 4993-5056
+Group 79: (Blocks 80897-81920)
+  Block bitmap at 80897 (+0), Inode bitmap at 80898 (+1)
+  Inode table at 80899-80906 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 80907-81920
+  Free inodes: 5057-5120
+Group 80: (Blocks 81921-82944)
+  Block bitmap at 81921 (+0), Inode bitmap at 81922 (+1)
+  Inode table at 81923-81930 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 81931-82944
+  Free inodes: 5121-5184
+Group 81: (Blocks 82945-83968)
+  Backup superblock at 82945, Group descriptors at 82946-82961
+  Reserved GDT blocks at 82962-83217
+  Block bitmap at 83218 (+273), Inode bitmap at 83219 (+274)
+  Inode table at 83220-83227 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 83228-83968
+  Free inodes: 5185-5248
+Group 82: (Blocks 83969-84992)
+  Block bitmap at 83969 (+0), Inode bitmap at 83970 (+1)
+  Inode table at 83971-83978 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 83979-84992
+  Free inodes: 5249-5312
+Group 83: (Blocks 84993-86016)
+  Block bitmap at 84993 (+0), Inode bitmap at 84994 (+1)
+  Inode table at 84995-85002 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 85003-86016
+  Free inodes: 5313-5376
+Group 84: (Blocks 86017-87040)
+  Block bitmap at 86017 (+0), Inode bitmap at 86018 (+1)
+  Inode table at 86019-86026 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 86027-87040
+  Free inodes: 5377-5440
+Group 85: (Blocks 87041-88064)
+  Block bitmap at 87041 (+0), Inode bitmap at 87042 (+1)
+  Inode table at 87043-87050 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 87051-88064
+  Free inodes: 5441-5504
+Group 86: (Blocks 88065-89088)
+  Block bitmap at 88065 (+0), Inode bitmap at 88066 (+1)
+  Inode table at 88067-88074 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 88075-89088
+  Free inodes: 5505-5568
+Group 87: (Blocks 89089-90112)
+  Block bitmap at 89089 (+0), Inode bitmap at 89090 (+1)
+  Inode table at 89091-89098 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 89099-90112
+  Free inodes: 5569-5632
+Group 88: (Blocks 90113-91136)
+  Block bitmap at 90113 (+0), Inode bitmap at 90114 (+1)
+  Inode table at 90115-90122 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 90123-91136
+  Free inodes: 5633-5696
+Group 89: (Blocks 91137-92160)
+  Block bitmap at 91137 (+0), Inode bitmap at 91138 (+1)
+  Inode table at 91139-91146 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 91147-92160
+  Free inodes: 5697-5760
+Group 90: (Blocks 92161-93184)
+  Block bitmap at 92161 (+0), Inode bitmap at 92162 (+1)
+  Inode table at 92163-92170 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 92171-93184
+  Free inodes: 5761-5824
+Group 91: (Blocks 93185-94208)
+  Block bitmap at 93185 (+0), Inode bitmap at 93186 (+1)
+  Inode table at 93187-93194 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 93195-94208
+  Free inodes: 5825-5888
+Group 92: (Blocks 94209-95232)
+  Block bitmap at 94209 (+0), Inode bitmap at 94210 (+1)
+  Inode table at 94211-94218 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 94219-95232
+  Free inodes: 5889-5952
+Group 93: (Blocks 95233-96256)
+  Block bitmap at 95233 (+0), Inode bitmap at 95234 (+1)
+  Inode table at 95235-95242 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 95243-96256
+  Free inodes: 5953-6016
+Group 94: (Blocks 96257-97280)
+  Block bitmap at 96257 (+0), Inode bitmap at 96258 (+1)
+  Inode table at 96259-96266 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 96267-97280
+  Free inodes: 6017-6080
+Group 95: (Blocks 97281-98304)
+  Block bitmap at 97281 (+0), Inode bitmap at 97282 (+1)
+  Inode table at 97283-97290 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 97291-98304
+  Free inodes: 6081-6144
+Group 96: (Blocks 98305-99328)
+  Block bitmap at 98305 (+0), Inode bitmap at 98306 (+1)
+  Inode table at 98307-98314 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 98315-99328
+  Free inodes: 6145-6208
+Group 97: (Blocks 99329-100352)
+  Block bitmap at 99329 (+0), Inode bitmap at 99330 (+1)
+  Inode table at 99331-99338 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 99339-100352
+  Free inodes: 6209-6272
+Group 98: (Blocks 100353-101376)
+  Block bitmap at 100353 (+0), Inode bitmap at 100354 (+1)
+  Inode table at 100355-100362 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 100363-101376
+  Free inodes: 6273-6336
+Group 99: (Blocks 101377-102400)
+  Block bitmap at 101377 (+0), Inode bitmap at 101378 (+1)
+  Inode table at 101379-101386 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 101387-102400
+  Free inodes: 6337-6400
+Group 100: (Blocks 102401-103424)
+  Block bitmap at 102401 (+0), Inode bitmap at 102402 (+1)
+  Inode table at 102403-102410 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 102411-103424
+  Free inodes: 6401-6464
+Group 101: (Blocks 103425-104448)
+  Block bitmap at 103425 (+0), Inode bitmap at 103426 (+1)
+  Inode table at 103427-103434 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 103435-104448
+  Free inodes: 6465-6528
+Group 102: (Blocks 104449-105472)
+  Block bitmap at 104449 (+0), Inode bitmap at 104450 (+1)
+  Inode table at 104451-104458 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 104459-105472
+  Free inodes: 6529-6592
+Group 103: (Blocks 105473-106496)
+  Block bitmap at 105473 (+0), Inode bitmap at 105474 (+1)
+  Inode table at 105475-105482 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 105483-106496
+  Free inodes: 6593-6656
+Group 104: (Blocks 106497-107520)
+  Block bitmap at 106497 (+0), Inode bitmap at 106498 (+1)
+  Inode table at 106499-106506 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 106507-107520
+  Free inodes: 6657-6720
+Group 105: (Blocks 107521-108544)
+  Block bitmap at 107521 (+0), Inode bitmap at 107522 (+1)
+  Inode table at 107523-107530 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 107531-108544
+  Free inodes: 6721-6784
+Group 106: (Blocks 108545-109568)
+  Block bitmap at 108545 (+0), Inode bitmap at 108546 (+1)
+  Inode table at 108547-108554 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 108555-109568
+  Free inodes: 6785-6848
+Group 107: (Blocks 109569-110592)
+  Block bitmap at 109569 (+0), Inode bitmap at 109570 (+1)
+  Inode table at 109571-109578 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 109579-110592
+  Free inodes: 6849-6912
+Group 108: (Blocks 110593-111616)
+  Block bitmap at 110593 (+0), Inode bitmap at 110594 (+1)
+  Inode table at 110595-110602 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 110603-111616
+  Free inodes: 6913-6976
+Group 109: (Blocks 111617-112640)
+  Block bitmap at 111617 (+0), Inode bitmap at 111618 (+1)
+  Inode table at 111619-111626 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 111627-112640
+  Free inodes: 6977-7040
+Group 110: (Blocks 112641-113664)
+  Block bitmap at 112641 (+0), Inode bitmap at 112642 (+1)
+  Inode table at 112643-112650 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 112651-113664
+  Free inodes: 7041-7104
+Group 111: (Blocks 113665-114688)
+  Block bitmap at 113665 (+0), Inode bitmap at 113666 (+1)
+  Inode table at 113667-113674 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 113675-114688
+  Free inodes: 7105-7168
+Group 112: (Blocks 114689-115712)
+  Block bitmap at 114689 (+0), Inode bitmap at 114690 (+1)
+  Inode table at 114691-114698 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 114699-115712
+  Free inodes: 7169-7232
+Group 113: (Blocks 115713-116736)
+  Block bitmap at 115713 (+0), Inode bitmap at 115714 (+1)
+  Inode table at 115715-115722 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 115723-116736
+  Free inodes: 7233-7296
+Group 114: (Blocks 116737-117760)
+  Block bitmap at 116737 (+0), Inode bitmap at 116738 (+1)
+  Inode table at 116739-116746 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 116747-117760
+  Free inodes: 7297-7360
+Group 115: (Blocks 117761-118784)
+  Block bitmap at 117761 (+0), Inode bitmap at 117762 (+1)
+  Inode table at 117763-117770 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 117771-118784
+  Free inodes: 7361-7424
+Group 116: (Blocks 118785-119808)
+  Block bitmap at 118785 (+0), Inode bitmap at 118786 (+1)
+  Inode table at 118787-118794 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 118795-119808
+  Free inodes: 7425-7488
+Group 117: (Blocks 119809-120832)
+  Block bitmap at 119809 (+0), Inode bitmap at 119810 (+1)
+  Inode table at 119811-119818 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 119819-120832
+  Free inodes: 7489-7552
+Group 118: (Blocks 120833-121856)
+  Block bitmap at 120833 (+0), Inode bitmap at 120834 (+1)
+  Inode table at 120835-120842 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 120843-121856
+  Free inodes: 7553-7616
+Group 119: (Blocks 121857-122880)
+  Block bitmap at 121857 (+0), Inode bitmap at 121858 (+1)
+  Inode table at 121859-121866 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 121867-122880
+  Free inodes: 7617-7680
+Group 120: (Blocks 122881-123904)
+  Block bitmap at 122881 (+0), Inode bitmap at 122882 (+1)
+  Inode table at 122883-122890 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 122891-123904
+  Free inodes: 7681-7744
+Group 121: (Blocks 123905-124928)
+  Block bitmap at 123905 (+0), Inode bitmap at 123906 (+1)
+  Inode table at 123907-123914 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 123915-124928
+  Free inodes: 7745-7808
+Group 122: (Blocks 124929-125952)
+  Block bitmap at 124929 (+0), Inode bitmap at 124930 (+1)
+  Inode table at 124931-124938 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 124939-125952
+  Free inodes: 7809-7872
+Group 123: (Blocks 125953-126976)
+  Block bitmap at 125953 (+0), Inode bitmap at 125954 (+1)
+  Inode table at 125955-125962 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 125963-126976
+  Free inodes: 7873-7936
+Group 124: (Blocks 126977-128000)
+  Block bitmap at 126977 (+0), Inode bitmap at 126978 (+1)
+  Inode table at 126979-126986 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 126987-128000
+  Free inodes: 7937-8000
+Group 125: (Blocks 128001-129024)
+  Backup superblock at 128001, Group descriptors at 128002-128017
+  Reserved GDT blocks at 128018-128273
+  Block bitmap at 128274 (+273), Inode bitmap at 128275 (+274)
+  Inode table at 128276-128283 (+275)
+  741 free blocks, 64 free inodes, 0 directories
+  Free blocks: 128284-129024
+  Free inodes: 8001-8064
+Group 126: (Blocks 129025-130048)
+  Block bitmap at 129025 (+0), Inode bitmap at 129026 (+1)
+  Inode table at 129027-129034 (+2)
+  1014 free blocks, 64 free inodes, 0 directories
+  Free blocks: 129035-130048
+  Free inodes: 8065-8128
+Group 127: (Blocks 130049-131071)
+  Block bitmap at 130049 (+0), Inode bitmap at 130050 (+1)
+  Inode table at 130051-130058 (+2)
+  1013 free blocks, 64 free inodes, 0 directories
+  Free blocks: 130059-131071
+  Free inodes: 8129-8192
diff --git a/tests/m_desc_size_128/script b/tests/m_desc_size_128/script
new file mode 100644
index 0000000..de3def9
--- /dev/null
+++ b/tests/m_desc_size_128/script
@@ -0,0 +1,4 @@ 
+DESCRIPTION="enable 128-byte group descriptor on mkfs"
+FS_SIZE=131072
+MKE2FS_OPTS="-b 1024 -O 64bit,extents -g 1024 -N 8192 -E desc_size=128"
+. $cmd_dir/run_mke2fs