While running with "misc-next" btrfs-devel branch #uname -a Linux ip-172-31-32-199.us-west-2.compute.internal 4.15.0-rc2 #1 SMP Tue Dec 5 10:21:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux bash-4.4# ./check tests/btrfs/151 FSTYP -- btrfs PLATFORM -- Linux/x86_64 ip-172-31-32-199 4.15.0-rc2 MKFS_OPTIONS -- /dev/xvdc MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/xvdc /mnt/scratch btrfs/151 - output mismatch (see /home/fedora/xfstests/results//btrfs/151.out.bad) --- tests/btrfs/151.out 2017-12-05 11:30:22.314933870 +0000 +++ /home/fedora/xfstests/results//btrfs/151.out.bad 2017-12-05 12:21:17.617150406 +0000 @@ -1,2 +1 @@ QA output created by 151 -Data, RAID1 ... (Run 'diff -u tests/btrfs/151.out /home/fedora/xfstests/results//btrfs/151.out.bad' to see the entire diff) Ran: btrfs/151 Failures: btrfs/151 Failed 1 of 1 tests Logs: https://github.com/Lakshmipathi/btrfsqa/tree/master/results/results_2017-12-05_12:14
It does not fail on my setups with updated fstests and kernel 4.16 (rc5). There were several other failing tests fixed just by updating fstests so I suppose this was one of them. Feel free to reopen if you still reproduce the failure.