diff --git a/252.out b/252.out
index 930c924..fcfd121 100644
--- a/252.out
+++ b/252.out
@@ -1,239 +1,307 @@
 QA output created by 252
 	1. into a hole
+daa100df6e6711906b61c9ab5aa16032
 	2. into allocated space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	3. into unwritten space
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: unwritten
+2: [24..39]: extent
+daa100df6e6711906b61c9ab5aa16032
 	4. hole -> data
 0: [0..23]: hole
-1: [24..31]: data
+1: [24..31]: extent
 2: [32..39]: hole
+cc63069677939f69a6e8f68cae6a6dac
 	5. hole -> unwritten
 0: [0..23]: hole
-1: [24..31]: unwritten
+1: [24..31]: extent
 2: [32..39]: hole
+daa100df6e6711906b61c9ab5aa16032
 	6. data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..39]: hole
+1b3779878366498b28c702ef88c4a773
 	7. data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..31]: unwritten
+2: [24..31]: extent
 3: [32..39]: hole
+1b3779878366498b28c702ef88c4a773
 	8. unwritten -> hole
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..39]: hole
+daa100df6e6711906b61c9ab5aa16032
 	9. unwritten -> data
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..31]: data
+2: [24..31]: extent
 3: [32..39]: hole
+cc63069677939f69a6e8f68cae6a6dac
 	10. hole -> data -> hole
+daa100df6e6711906b61c9ab5aa16032
 	11. data -> hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	12. unwritten -> data -> unwritten
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: unwritten
+2: [32..39]: extent
+daa100df6e6711906b61c9ab5aa16032
 	13. data -> unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	14. data -> hole @ EOF
-0: [0..23]: data
+0: [0..23]: extent
 1: [24..39]: hole
+e1f024eedd27ea6b1c3e9b841c850404
 	15. data -> hole @ 0
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	16. data -> cache cold ->hole
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	17. data -> hole in single block file
-0: [0..7]: data
+0: [0..7]: extent
+13535fd4d496bf0b74bb2335aa4d1b31
 	1. into a hole
+daa100df6e6711906b61c9ab5aa16032
 	2. into allocated space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	3. into unwritten space
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: unwritten
+2: [24..39]: extent
+daa100df6e6711906b61c9ab5aa16032
 	4. hole -> data
 0: [0..23]: hole
-1: [24..31]: data
+1: [24..31]: extent
 2: [32..39]: hole
+cc63069677939f69a6e8f68cae6a6dac
 	5. hole -> unwritten
 0: [0..23]: hole
-1: [24..31]: unwritten
+1: [24..31]: extent
 2: [32..39]: hole
+daa100df6e6711906b61c9ab5aa16032
 	6. data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..39]: hole
+1b3779878366498b28c702ef88c4a773
 	7. data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..31]: unwritten
+2: [24..31]: extent
 3: [32..39]: hole
+1b3779878366498b28c702ef88c4a773
 	8. unwritten -> hole
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..39]: hole
+daa100df6e6711906b61c9ab5aa16032
 	9. unwritten -> data
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..31]: data
+2: [24..31]: extent
 3: [32..39]: hole
+cc63069677939f69a6e8f68cae6a6dac
 	10. hole -> data -> hole
+daa100df6e6711906b61c9ab5aa16032
 	11. data -> hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	12. unwritten -> data -> unwritten
-0: [0..7]: unwritten
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: unwritten
+2: [32..39]: extent
+daa100df6e6711906b61c9ab5aa16032
 	13. data -> unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	14. data -> hole @ EOF
-0: [0..23]: data
+0: [0..23]: extent
 1: [24..39]: hole
+e1f024eedd27ea6b1c3e9b841c850404
 	15. data -> hole @ 0
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	16. data -> cache cold ->hole
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	17. data -> hole in single block file
-0: [0..7]: data
+0: [0..7]: extent
+13535fd4d496bf0b74bb2335aa4d1b31
 	1. into a hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..39]: hole
+5a58e46082be047d0f13bee7974015b9
 	2. into allocated space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	3. into unwritten space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	4. hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	5. hole -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	6. data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	7. data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	8. unwritten -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	9. unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	10. hole -> data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	11. data -> hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	12. unwritten -> data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	13. data -> unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	14. data -> hole @ EOF
-0: [0..23]: data
+0: [0..23]: extent
 1: [24..39]: hole
+e1f024eedd27ea6b1c3e9b841c850404
 	15. data -> hole @ 0
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	16. data -> cache cold ->hole
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	17. data -> hole in single block file
-0: [0..7]: data
+0: [0..7]: extent
+13535fd4d496bf0b74bb2335aa4d1b31
 	1. into a hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..39]: hole
+5a58e46082be047d0f13bee7974015b9
 	2. into allocated space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	3. into unwritten space
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	4. hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	5. hole -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	6. data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	7. data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	8. unwritten -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	9. unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..23]: hole
-2: [24..39]: data
+2: [24..39]: extent
+cc58a7417c2d7763adc45b6fcd3fa024
 	10. hole -> data -> hole
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	11. data -> hole -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	12. unwritten -> data -> unwritten
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	13. data -> unwritten -> data
-0: [0..7]: data
+0: [0..7]: extent
 1: [8..31]: hole
-2: [32..39]: data
+2: [32..39]: extent
+f6aeca13ec49e5b266cd1c913cd726e3
 	14. data -> hole @ EOF
-0: [0..23]: data
+0: [0..23]: extent
 1: [24..39]: hole
+e1f024eedd27ea6b1c3e9b841c850404
 	15. data -> hole @ 0
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	16. data -> cache cold ->hole
 0: [0..15]: hole
-1: [16..39]: data
+1: [16..39]: extent
+eecb7aa303d121835de05028751d301c
 	17. data -> hole in single block file
-0: [0..7]: data
+0: [0..7]: extent
+13535fd4d496bf0b74bb2335aa4d1b31
