diff mbox

_test_generic_punch: Extend $testfile's size to work with 64k block.

Message ID 3326777.u9YeDIQiYF@localhost.localdomain (mailing list archive)
State New, archived
Headers show

Commit Message

Chandan Rajendra Aug. 8, 2013, 6:10 a.m. UTC 
From cf6e1fc3a8d7806a97055b5f483cf50f58c8294f Mon Sep 17 00:00:00 2001
From: chandan <chandan@linux.vnet.ibm.com>
Date: Thu, 8 Aug 2013 11:33:10 +0530
Subject: [PATCH] _test_generic_punch: Extend $testfile's size to work with 64k
 block.

The current script does not work with 64k block size. This patch fixes it
by creating a larger $testfile.

Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
---
 common/punch          | 119 +++++++------
 tests/generic/255.out | 476 +++++++++++++++++++++++++-------------------------
 tests/xfs/242.out     | 118 ++++++-------
 tests/xfs/252.out     | 476 +++++++++++++++++++++++++-------------------------
 4 files changed, 594 insertions(+), 595 deletions(-)

Comments

Dave Chinner Aug. 12, 2013, 1:11 a.m. UTC | #1 
On Thu, Aug 08, 2013 at 11:40:04AM +0530, chandan wrote:
> From cf6e1fc3a8d7806a97055b5f483cf50f58c8294f Mon Sep 17 00:00:00 2001
> From: chandan <chandan@linux.vnet.ibm.com>
> Date: Thu, 8 Aug 2013 11:33:10 +0530
> Subject: [PATCH] _test_generic_punch: Extend $testfile's size to work with 64k
>  block.
> 
> The current script does not work with 64k block size. This patch fixes it
> by creating a larger $testfile.

I can see why we might want to support such a configuration, but the
changes being made defeat the purpose of the sizes chosen for this
test.

That is, most people testing are using 4k block size filesystems,
and the sizes are selected such that single blocks are being
manipulated by the test. it's looking for corner/edge case problems,
and changing the code to now use chunks of 64k changes all the edge
cases being tested.

Indeed, even the new bmap output is likely to cause problems in that
small block size filesystems are no guaranteed to allocate
contiguous blocks linearly. This is another reason that 4k was
chosen as the size of the regions.

So, to do this properly, I'd suggest that the code needs to scale
the offset/size of the IO being done by the filesystem block size,
not use a fixed size. Using a filter on the bmap output to handle
the different block ranges will ensure everything works correctly
from a golden output POV, except for one thing - the md5sum.

The md5sum of the file is used for integrity checking and will
change as the block size changes. I haven't thought about a way to
avoid his problem yet but we do need some form of integrity check
to ensure all filesystems are ending up with the correct contents in
the files.

In the interim, if all you want to do is stop a test failure on your
power machines, then either add a "_requires_le_4k_blocksize" check
to avoid running the test on problematic filesystems or specifically
create the fileystem being tested with a 4k block size...

Cheers,

Dave.
Chandan Rajendra Aug. 13, 2013, 3:58 p.m. UTC | #2 
Hello Dave,

> So, to do this properly, I'd suggest that the code needs to scale
> the offset/size of the IO being done by the filesystem block size,
> not use a fixed size. Using a filter on the bmap output to handle
> the different block ranges will ensure everything works correctly
> from a golden output POV, except for one thing - the md5sum.
> 
Yes, we did try the approach of using variable block size and scaling
the offset values in the filter function. But we got stuck
working with md5sum (since we would need two sets of md5sums (with and
without '-k' option) per block size). As suggested, I will be
reposting the patch to use "_requires_le_4k_blocksize".

chandan

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diff mbox

Patch

diff --git a/common/punch b/common/punch
index d8f73d0..e6f0b2a 100644
--- a/common/punch
+++ b/common/punch
@@ -316,8 +316,8 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -326,9 +326,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 320k" $sync_cmd \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -337,9 +337,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 20k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 320k" \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -348,9 +348,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 8k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 128k 128k" $sync_cmd \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -359,9 +359,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 8k 8k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 128k 128k" \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -370,9 +370,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 8k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 128k" $sync_cmd \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -381,10 +381,10 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 8k" $sync_cmd \
-		-c "$alloc_cmd 8k 8k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 128k" $sync_cmd \
+		-c "$alloc_cmd 128k 128k" \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -393,9 +393,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 8k" \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 128k" \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -404,10 +404,10 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 8k" \
-		-c "pwrite 8k 8k" $sync_cmd \
-		-c "$zero_cmd 4k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 128k" \
+		-c "pwrite 128k 128k" $sync_cmd \
+		-c "$zero_cmd 64k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -416,9 +416,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 4k" $sync_cmd \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 128k 64k" $sync_cmd \
+		-c "$zero_cmd 64k 192k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -427,12 +427,12 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 20k" \
-		-c "pwrite 0 8k" \
-		-c "pwrite 12k 8k" $sync_cmd \
-		-c "$punch_cmd 8k 4k" \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 320k" \
+		-c "pwrite 0 128k" \
+		-c "pwrite 192k 128k" $sync_cmd \
+		-c "$punch_cmd 128k 64k" \
+		-c "$zero_cmd 64k 192k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -441,10 +441,10 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 20k" \
-		-c "pwrite 8k 4k" $sync_cmd \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 320k" \
+		-c "pwrite 128k 64k" $sync_cmd \
+		-c "$zero_cmd 64k 192k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -453,20 +453,20 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "$alloc_cmd 0 20k" \
-		-c "pwrite 0k 8k" $sync_cmd \
-		-c "pwrite 12k 8k" -c "fsync" \
-		-c "$zero_cmd 4k 12k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "$alloc_cmd 0 320k" \
+		-c "pwrite 0k 128k" $sync_cmd \
+		-c "pwrite 192k 128k" -c "fsync" \
+		-c "$zero_cmd 64k 192k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
 
 	echo "	14. data -> hole @ EOF"
 	rm -f $testfile
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 12k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 320k" $sync_cmd \
+		-c "$zero_cmd 192k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -475,9 +475,9 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 0k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 320k" $sync_cmd \
+		-c "$zero_cmd 0k 128k" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
 	_md5_checksum $testfile
@@ -489,12 +489,12 @@  _test_generic_punch()
 	else
 		cp $testfile $testfile.2
 	fi
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 8k 12k" -c "fsync" $testfile.2 \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 128k 192k" -c "fsync" $testfile.2 \
 		> /dev/null
-	$XFS_IO_PROG -f -c "truncate 20k" \
-		-c "pwrite 0 20k" $sync_cmd \
-		-c "$zero_cmd 0k 8k" \
+	$XFS_IO_PROG -f -c "truncate 320k" \
+		-c "pwrite 0 320k" $sync_cmd \
+		-c "$zero_cmd 0k 128k" \
 		-c "fadvise -d" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	diff $testfile $testfile.2
@@ -506,9 +506,8 @@  _test_generic_punch()
 	if [ "$remove_testfile" ]; then
 		rm -f $testfile
 	fi
-	block_size=`stat -f $TEST_DEV | grep "Block size" | cut -d " " -f3`
-	$XFS_IO_PROG -f -c "truncate $block_size" \
-		-c "pwrite 0 $block_size" $sync_cmd \
+	$XFS_IO_PROG -f -c "truncate 64k" \
+		-c "pwrite 0 64k" $sync_cmd \
 		-c "$zero_cmd 128 128" \
 		-c "$map_cmd -v" $testfile | $filter_cmd
 	[ $? -ne 0 ] && die_now
diff --git a/tests/generic/255.out b/tests/generic/255.out
index 2ce882b..5aa1ce1 100644
--- a/tests/generic/255.out
+++ b/tests/generic/255.out
@@ -1,307 +1,307 @@ 
 QA output created by 255
 	1. into a hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	2. into allocated space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+1aca77e2188f52a62674fe8a873bdaba
 	4. hole -> data
-0: [0..23]: hole
-1: [24..31]: extent
-2: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..383]: hole
+1: [384..511]: extent
+2: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	5. hole -> unwritten
-0: [0..23]: hole
-1: [24..31]: extent
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..383]: hole
+1: [384..511]: extent
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	6. data -> hole
-0: [0..7]: extent
-1: [8..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: extent
+1: [128..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	7. data -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..31]: extent
-3: [32..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..511]: extent
+3: [512..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	8. unwritten -> hole
-0: [0..7]: extent
-1: [8..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	9. unwritten -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..31]: extent
-3: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..511]: extent
+3: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	10. hole -> data -> hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	11. data -> hole -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+1aca77e2188f52a62674fe8a873bdaba
 	13. data -> unwritten -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: extent
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: extent
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: extent
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: extent
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	2. into allocated space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+1aca77e2188f52a62674fe8a873bdaba
 	4. hole -> data
-0: [0..23]: hole
-1: [24..31]: extent
-2: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..383]: hole
+1: [384..511]: extent
+2: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	5. hole -> unwritten
-0: [0..23]: hole
-1: [24..31]: extent
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..383]: hole
+1: [384..511]: extent
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	6. data -> hole
-0: [0..7]: extent
-1: [8..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: extent
+1: [128..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	7. data -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..31]: extent
-3: [32..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..511]: extent
+3: [512..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	8. unwritten -> hole
-0: [0..7]: extent
-1: [8..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	9. unwritten -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..31]: extent
-3: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..511]: extent
+3: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	10. hole -> data -> hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	11. data -> hole -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+1aca77e2188f52a62674fe8a873bdaba
 	13. data -> unwritten -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: extent
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: extent
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: extent
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: extent
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-0: [0..7]: extent
-1: [8..39]: hole
-5a58e46082be047d0f13bee7974015b9
+0: [0..127]: extent
+1: [128..639]: hole
+4c4016ef1838c07e9cf59da9c77d017f
 	2. into allocated space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	4. hole -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	5. hole -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	6. data -> hole
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	7. data -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	8. unwritten -> hole
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	9. unwritten -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	10. hole -> data -> hole
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	11. data -> hole -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	13. data -> unwritten -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: extent
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: extent
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: extent
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: extent
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-0: [0..7]: extent
-1: [8..39]: hole
-5a58e46082be047d0f13bee7974015b9
+0: [0..127]: extent
+1: [128..639]: hole
+4c4016ef1838c07e9cf59da9c77d017f
 	2. into allocated space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	4. hole -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	5. hole -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	6. data -> hole
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	7. data -> unwritten
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	8. unwritten -> hole
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	9. unwritten -> data
-0: [0..7]: extent
-1: [8..23]: hole
-2: [24..39]: extent
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: extent
+1: [128..383]: hole
+2: [384..639]: extent
+2f7a72b9ca9923b610514a11a45a80c9
 	10. hole -> data -> hole
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	11. data -> hole -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	13. data -> unwritten -> data
-0: [0..7]: extent
-1: [8..31]: hole
-2: [32..39]: extent
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: extent
+1: [128..511]: hole
+2: [512..639]: extent
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: extent
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: extent
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: extent
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: extent
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: extent
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: extent
+27b1998d7d1907fb55376ff286f3f506
diff --git a/tests/xfs/242.out b/tests/xfs/242.out
index 72026a3..11531d4 100644
--- a/tests/xfs/242.out
+++ b/tests/xfs/242.out
@@ -1,77 +1,77 @@ 
 QA output created by 242
 	1. into a hole
-0: [0..7]: hole
-1: [8..23]: unwritten
-2: [24..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: hole
+1: [128..383]: unwritten
+2: [384..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	2. into allocated space
-0: [0..7]: data
-1: [8..23]: unwritten
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: unwritten
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	4. hole -> data
-0: [0..7]: hole
-1: [8..23]: unwritten
-2: [24..31]: data
-3: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..127]: hole
+1: [128..383]: unwritten
+2: [384..511]: data
+3: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	5. hole -> unwritten
-0: [0..7]: hole
-1: [8..31]: unwritten
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: hole
+1: [128..511]: unwritten
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	6. data -> hole
-0: [0..7]: data
-1: [8..23]: unwritten
-2: [24..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..383]: unwritten
+2: [384..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	7. data -> unwritten
-0: [0..7]: data
-1: [8..31]: unwritten
-2: [32..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..511]: unwritten
+2: [512..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	8. unwritten -> hole
-0: [0..23]: unwritten
-1: [24..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..383]: unwritten
+1: [384..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	9. unwritten -> data
-0: [0..23]: unwritten
-1: [24..31]: data
-2: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..383]: unwritten
+1: [384..511]: data
+2: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	10. hole -> data -> hole
-0: [0..7]: hole
-1: [8..31]: unwritten
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: hole
+1: [128..511]: unwritten
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	11. data -> hole -> data
-0: [0..7]: data
-1: [8..31]: unwritten
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: unwritten
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	13. data -> unwritten -> data
-0: [0..7]: data
-1: [8..31]: unwritten
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: unwritten
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: data
-1: [24..39]: unwritten
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: data
+1: [384..639]: unwritten
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: unwritten
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: unwritten
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: unwritten
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: unwritten
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: data
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: data
+27b1998d7d1907fb55376ff286f3f506
diff --git a/tests/xfs/252.out b/tests/xfs/252.out
index 3caf9d6..ba37288 100644
--- a/tests/xfs/252.out
+++ b/tests/xfs/252.out
@@ -1,307 +1,307 @@ 
 QA output created by 252
 	1. into a hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	2. into allocated space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: unwritten
-1: [8..23]: hole
-2: [24..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..383]: hole
+2: [384..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	4. hole -> data
-0: [0..23]: hole
-1: [24..31]: data
-2: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..383]: hole
+1: [384..511]: data
+2: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	5. hole -> unwritten
-0: [0..23]: hole
-1: [24..31]: unwritten
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..383]: hole
+1: [384..511]: unwritten
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	6. data -> hole
-0: [0..7]: data
-1: [8..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	7. data -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..31]: unwritten
-3: [32..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..511]: unwritten
+3: [512..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	8. unwritten -> hole
-0: [0..7]: unwritten
-1: [8..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	9. unwritten -> data
-0: [0..7]: unwritten
-1: [8..23]: hole
-2: [24..31]: data
-3: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..127]: unwritten
+1: [128..383]: hole
+2: [384..511]: data
+3: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	10. hole -> data -> hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	11. data -> hole -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: unwritten
-1: [8..31]: hole
-2: [32..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..511]: hole
+2: [512..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	13. data -> unwritten -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: data
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: data
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: data
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: data
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	2. into allocated space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: unwritten
-1: [8..23]: hole
-2: [24..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..383]: hole
+2: [384..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	4. hole -> data
-0: [0..23]: hole
-1: [24..31]: data
-2: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..383]: hole
+1: [384..511]: data
+2: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	5. hole -> unwritten
-0: [0..23]: hole
-1: [24..31]: unwritten
-2: [32..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..383]: hole
+1: [384..511]: unwritten
+2: [512..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	6. data -> hole
-0: [0..7]: data
-1: [8..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	7. data -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..31]: unwritten
-3: [32..39]: hole
-1b3779878366498b28c702ef88c4a773
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..511]: unwritten
+3: [512..639]: hole
+3976e5cc0b8a47c4cdc9e0211635f568
 	8. unwritten -> hole
-0: [0..7]: unwritten
-1: [8..39]: hole
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..639]: hole
+1aca77e2188f52a62674fe8a873bdaba
 	9. unwritten -> data
-0: [0..7]: unwritten
-1: [8..23]: hole
-2: [24..31]: data
-3: [32..39]: hole
-cc63069677939f69a6e8f68cae6a6dac
+0: [0..127]: unwritten
+1: [128..383]: hole
+2: [384..511]: data
+3: [512..639]: hole
+286aad7ca07b2256f0f2bb8e608ff63d
 	10. hole -> data -> hole
-daa100df6e6711906b61c9ab5aa16032
+1aca77e2188f52a62674fe8a873bdaba
 	11. data -> hole -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: unwritten
-1: [8..31]: hole
-2: [32..39]: unwritten
-daa100df6e6711906b61c9ab5aa16032
+0: [0..127]: unwritten
+1: [128..511]: hole
+2: [512..639]: unwritten
+1aca77e2188f52a62674fe8a873bdaba
 	13. data -> unwritten -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: data
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: data
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: data
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: data
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-0: [0..7]: data
-1: [8..39]: hole
-5a58e46082be047d0f13bee7974015b9
+0: [0..127]: data
+1: [128..639]: hole
+4c4016ef1838c07e9cf59da9c77d017f
 	2. into allocated space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	4. hole -> data
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	5. hole -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	6. data -> hole
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	7. data -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	8. unwritten -> hole
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	9. unwritten -> data
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	10. hole -> data -> hole
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	11. data -> hole -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	13. data -> unwritten -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: data
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: data
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: data
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: data
+27b1998d7d1907fb55376ff286f3f506
 	1. into a hole
-0: [0..7]: data
-1: [8..39]: hole
-5a58e46082be047d0f13bee7974015b9
+0: [0..127]: data
+1: [128..639]: hole
+4c4016ef1838c07e9cf59da9c77d017f
 	2. into allocated space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	3. into unwritten space
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	4. hole -> data
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	5. hole -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	6. data -> hole
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	7. data -> unwritten
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	8. unwritten -> hole
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	9. unwritten -> data
-0: [0..7]: data
-1: [8..23]: hole
-2: [24..39]: data
-cc58a7417c2d7763adc45b6fcd3fa024
+0: [0..127]: data
+1: [128..383]: hole
+2: [384..639]: data
+2f7a72b9ca9923b610514a11a45a80c9
 	10. hole -> data -> hole
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	11. data -> hole -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	12. unwritten -> data -> unwritten
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	13. data -> unwritten -> data
-0: [0..7]: data
-1: [8..31]: hole
-2: [32..39]: data
-f6aeca13ec49e5b266cd1c913cd726e3
+0: [0..127]: data
+1: [128..511]: hole
+2: [512..639]: data
+0bcfc7652751f8fe46381240ccadd9d7
 	14. data -> hole @ EOF
-0: [0..23]: data
-1: [24..39]: hole
-e1f024eedd27ea6b1c3e9b841c850404
+0: [0..383]: data
+1: [384..639]: hole
+eb591f549edabba2b21f80ce4deed8a9
 	15. data -> hole @ 0
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	16. data -> cache cold ->hole
-0: [0..15]: hole
-1: [16..39]: data
-eecb7aa303d121835de05028751d301c
+0: [0..255]: hole
+1: [256..639]: data
+b0c249edb75ce5b52136864d879cde83
 	17. data -> hole in single block file
-0: [0..7]: data
-13535fd4d496bf0b74bb2335aa4d1b31
+0: [0..127]: data
+27b1998d7d1907fb55376ff286f3f506