QA output created by 226
Testing write against COW file
wrote 131072/131072 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
pwrite: Resource temporarily unavailable
File data after write attempt:
0000000 ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab
*
0131072

Testing write against extent shared across snapshots
wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Create a snapshot of 'SCRATCH_MNT' in 'SCRATCH_MNT/snap'
wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
pwrite: Resource temporarily unavailable
File data after write attempt:
0000000 ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab
*
0065536 cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd
*
0131072

Testing write against shared extent through reflink
wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
linked 65536/65536 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
pwrite: Resource temporarily unavailable
File data after write attempt:
0000000 ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab
*
0065536 cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd
*
0131072

Testing write against prealloc extent at eof
wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
File after write:
0000000 ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab ab
*
0065536 cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd
*
0131072

Testing writes against ranges with holes
wrote 65536/65536 bytes at offset 0
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 196608
XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
pwrite: Resource temporarily unavailable
pwrite: Resource temporarily unavailable
File data after write attempt:
0000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
0065536 cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd cd
*
0131072 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
0196608 ef ef ef ef ef ef ef ef ef ef ef ef ef ef ef ef
*
0262144