164-bit filesystem support is not enabled.  The larger fields afforded by this feature enable full-strength checksumming.  Pass -O 64bit to rectify.
2Creating filesystem with 524288 1k blocks and 32768 inodes
3Superblock backups stored on blocks:
4	8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
5
6Allocating group tables:      done
7Writing inode tables:      done
8Creating journal (16384 blocks): done
9Writing superblocks and filesystem accounting information:      done
10
11Pass 1: Checking inodes, blocks, and sizes
12Pass 2: Checking directory structure
13Pass 3: Checking directory connectivity
14Pass 4: Checking reference counts
15Pass 5: Checking group summary information
16test_filesys: 11/32768 files (0.0% non-contiguous), 27050/524288 blocks
17Exit status is 0
18Journal features:         (none)
19debugfs write journal
20Journal features:         journal_incompat_revoke journal_checksum_v3
21debugfs: logdump -c
22Journal starts at block 1, transaction 1
23Found expected sequence 1, type 1 (descriptor block) at block 1
24Found expected sequence 1, type 1 (descriptor block) at block 64
25Found expected sequence 1, type 1 (descriptor block) at block 127
26Found expected sequence 1, type 1 (descriptor block) at block 190
27Found expected sequence 1, type 1 (descriptor block) at block 253
28Found expected sequence 1, type 1 (descriptor block) at block 316
29Found expected sequence 1, type 1 (descriptor block) at block 379
30Found expected sequence 1, type 1 (descriptor block) at block 442
31Found expected sequence 1, type 1 (descriptor block) at block 505
32Found expected sequence 1, type 1 (descriptor block) at block 568
33Found expected sequence 1, type 1 (descriptor block) at block 631
34Found expected sequence 1, type 1 (descriptor block) at block 694
35Found expected sequence 1, type 1 (descriptor block) at block 757
36Found expected sequence 1, type 1 (descriptor block) at block 820
37Found expected sequence 1, type 1 (descriptor block) at block 883
38Found expected sequence 1, type 1 (descriptor block) at block 946
39Found expected sequence 1, type 1 (descriptor block) at block 1009
40Found expected sequence 1, type 1 (descriptor block) at block 1072
41Found expected sequence 1, type 1 (descriptor block) at block 1135
42Found expected sequence 1, type 1 (descriptor block) at block 1198
43Found expected sequence 1, type 1 (descriptor block) at block 1261
44Found expected sequence 1, type 1 (descriptor block) at block 1324
45Found expected sequence 1, type 1 (descriptor block) at block 1387
46Found expected sequence 1, type 1 (descriptor block) at block 1450
47Found expected sequence 1, type 1 (descriptor block) at block 1513
48Found expected sequence 1, type 1 (descriptor block) at block 1576
49Found expected sequence 1, type 1 (descriptor block) at block 1639
50Found expected sequence 1, type 1 (descriptor block) at block 1702
51Found expected sequence 1, type 1 (descriptor block) at block 1765
52Found expected sequence 1, type 1 (descriptor block) at block 1828
53Found expected sequence 1, type 1 (descriptor block) at block 1891
54Found expected sequence 1, type 1 (descriptor block) at block 1954
55Found expected sequence 1, type 1 (descriptor block) at block 2017
56Found expected sequence 1, type 1 (descriptor block) at block 2080
57Found expected sequence 1, type 1 (descriptor block) at block 2143
58Found expected sequence 1, type 1 (descriptor block) at block 2206
59Found expected sequence 1, type 1 (descriptor block) at block 2269
60Found expected sequence 1, type 1 (descriptor block) at block 2332
61Found expected sequence 1, type 1 (descriptor block) at block 2395
62Found expected sequence 1, type 1 (descriptor block) at block 2458
63Found expected sequence 1, type 1 (descriptor block) at block 2521
64Found expected sequence 1, type 1 (descriptor block) at block 2584
65Found expected sequence 1, type 1 (descriptor block) at block 2647
66Found expected sequence 1, type 1 (descriptor block) at block 2710
67Found expected sequence 1, type 1 (descriptor block) at block 2773
68Found expected sequence 1, type 1 (descriptor block) at block 2836
69Found expected sequence 1, type 1 (descriptor block) at block 2899
70Found expected sequence 1, type 1 (descriptor block) at block 2962
71Found expected sequence 1, type 1 (descriptor block) at block 3025
72Found expected sequence 1, type 1 (descriptor block) at block 3088
73Found expected sequence 1, type 1 (descriptor block) at block 3151
74Found expected sequence 1, type 1 (descriptor block) at block 3214
75Found expected sequence 1, type 1 (descriptor block) at block 3277
76Found expected sequence 1, type 1 (descriptor block) at block 3340
77Found expected sequence 1, type 1 (descriptor block) at block 3403
78Found expected sequence 1, type 1 (descriptor block) at block 3466
79Found expected sequence 1, type 1 (descriptor block) at block 3529
80Found expected sequence 1, type 1 (descriptor block) at block 3592
81Found expected sequence 1, type 1 (descriptor block) at block 3655
82Found expected sequence 1, type 1 (descriptor block) at block 3718
83Found expected sequence 1, type 1 (descriptor block) at block 3781
84Found expected sequence 1, type 1 (descriptor block) at block 3844
85Found expected sequence 1, type 1 (descriptor block) at block 3907
86Found expected sequence 1, type 1 (descriptor block) at block 3970
87Found expected sequence 1, type 1 (descriptor block) at block 4033
88Found expected sequence 1, type 1 (descriptor block) at block 4096
89Found expected sequence 1, type 1 (descriptor block) at block 4159
90Found expected sequence 1, type 2 (commit block) at block 4165
91Found expected sequence 2, type 5 (revoke table) at block 4166
92Found expected sequence 2, type 5 (revoke table) at block 4167
93Found expected sequence 2, type 5 (revoke table) at block 4168
94Found expected sequence 2, type 5 (revoke table) at block 4169
95Found expected sequence 2, type 5 (revoke table) at block 4170
96Found expected sequence 2, type 5 (revoke table) at block 4171
97Found expected sequence 2, type 5 (revoke table) at block 4172
98Found expected sequence 2, type 5 (revoke table) at block 4173
99Found expected sequence 2, type 5 (revoke table) at block 4174
100Found expected sequence 2, type 5 (revoke table) at block 4175
101Found expected sequence 2, type 5 (revoke table) at block 4176
102Found expected sequence 2, type 5 (revoke table) at block 4177
103Found expected sequence 2, type 5 (revoke table) at block 4178
104Found expected sequence 2, type 5 (revoke table) at block 4179
105Found expected sequence 2, type 5 (revoke table) at block 4180
106Found expected sequence 2, type 5 (revoke table) at block 4181
107Found expected sequence 2, type 5 (revoke table) at block 4182
108Found expected sequence 2, type 2 (commit block) at block 4183
109No magic number at block 4184: end of journal.
110test_filesys: recovering journal
111Pass 1: Checking inodes, blocks, and sizes
112Pass 2: Checking directory structure
113Pass 3: Checking directory connectivity
114Pass 4: Checking reference counts
115Pass 5: Checking group summary information
116test_filesys: 11/32768 files (0.0% non-contiguous), 27050/524288 blocks
117Exit status is 0
118