log =LDEV bsize=XXX blocks=XXX
realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX
-Writing 512 bytes at 1 Tb (direct=false)
-wrote 512/512 bytes at offset 1099511627776
-Saving block map to 071.full
-Reading 512 bytes at 1 Tb (direct=false)
-read 512/512 bytes at offset 1099511627776
-
-Writing 512 bytes at 1 Tb minus 1 byte (direct=false)
-wrote 512/512 bytes at offset 1099511627775
-Saving block map to 071.full
-Reading 512 bytes at 1 Tb minus 1 byte (direct=false)
-read 512/512 bytes at offset 1099511627775
-
-Writing 512 bytes at 1 Tb minus 1 FSB (direct=false)
-wrote 512/512 bytes at offset 1099511623680
-Saving block map to 071.full
-Reading 512 bytes at 1 Tb minus 1 FSB (direct=false)
-read 512/512 bytes at offset 1099511623680
-
-Writing 4096 bytes at 1 Tb (direct=true)
-wrote 512/512 bytes at offset 1099511627776
-Saving block map to 071.full
-Reading 4096 bytes at 1 Tb (direct=true)
-read 512/4096 bytes at offset 1099511627776
-
-Writing 4096 bytes at 1 Tb minus 1 FSB (direct=true)
-wrote 512/512 bytes at offset 1099511627775
-Saving block map to 071.full
-Reading 4096 bytes at 1 Tb minus 1 FSB (direct=true)
-read 513/4096 bytes at offset 1099511627775
+Writing 512 bytes, offset is +0 (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 512 bytes (direct=false)
+read 512/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1 byte (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 512 bytes (direct=false)
+read 512/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1FSB (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 512 bytes (direct=false)
+read 512/512 bytes at offset <OFFSET>
+
+Writing 1 bytes, offset is minus 1FSB (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 1 bytes (direct=false)
+read 1/1 bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is +0 (direct=true)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 1FSB bytes (direct=true)
+read 512/1FSB bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is minus 1FSB (direct=true)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 1FSB bytes (direct=true)
+read 513/1FSB bytes at offset <OFFSET>
+
+=== Iterating, 2 remains
+
+
+Writing 512 bytes, offset is +0 (direct=false)
+pwrite64: File too large
+Reading 512 bytes (direct=false)
+read 0/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1 byte (direct=false)
+pwrite64: File too large
+Reading 512 bytes (direct=false)
+read 0/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1FSB (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 512 bytes (direct=false)
+read 512/512 bytes at offset <OFFSET>
+
+Writing 1 bytes, offset is minus 1FSB (direct=false)
+wrote 512/512 bytes at offset <OFFSET>
+Reading 1 bytes (direct=false)
+read 1/1 bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is +0 (direct=true)
+pwrite64: File too large
+Reading 1FSB bytes (direct=true)
+read 0/1FSB bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is minus 1FSB (direct=true)
+pwrite64: File too large
+Reading 1FSB bytes (direct=true)
+read 0/1FSB bytes at offset <OFFSET>
+
+=== Iterating, 1 remains
+
+
+Writing 512 bytes, offset is +0 (direct=false)
+pwrite64: File too large
+Reading 512 bytes (direct=false)
+read 0/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1 byte (direct=false)
+pwrite64: File too large
+Reading 512 bytes (direct=false)
+read 0/512 bytes at offset <OFFSET>
+
+Writing 512 bytes, offset is minus 1FSB (direct=false)
+pwrite64: File too large
+Reading 512 bytes (direct=false)
+read 0/512 bytes at offset <OFFSET>
+
+Writing 1 bytes, offset is minus 1FSB (direct=false)
+pwrite64: File too large
+Reading 1 bytes (direct=false)
+read 0/1 bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is +0 (direct=true)
+pwrite64: File too large
+Reading 1FSB bytes (direct=true)
+read 0/1FSB bytes at offset <OFFSET>
+
+Writing 1FSB bytes, offset is minus 1FSB (direct=true)
+pwrite64: File too large
+Reading 1FSB bytes (direct=true)
+read 0/1FSB bytes at offset <OFFSET>
+
+=== Iterating, 0 remains
+