ZTS: snapshot/snapshot_002_pos

[behlendorf]

System information

Type	Version/Name
Distribution Name	FreeBSD
Distribution Version	13.2
Kernel Version
Architecture	x86_64
OpenZFS Version	zfs-2.1.99-1903-g6b6aaf6dc

Describe the problem you're observing

Occasional failures of the snapshot/snapshot_002_pos on FreeBSD 13.2 in the CI.

Describe how to reproduce the problem

This test case usually passes but has been observed to occasionally fail on FreeBSD.

Include any warning/errors/backtraces from the system logs

From http://build.zfsonlinux.org/builders/FreeBSD%20stable%2F13%20amd64%20%28TEST%29/builds/8514/steps/shell_4/logs/summary

Test: /usr/local/share/zfs/zfs-tests/tests/functional/snapshot/snapshot_002_pos (run as root) [00:00] [FAIL]
19:46:23.79 ASSERTION: Verify an archive of a file system is identical to  an archive of its snapshot.
19:46:23.80 NOTE: Create files in the zfs filesystem...
19:46:23.80 SUCCESS: file_write -o create -f /mnt/testdir/file1 -b 8192 -c 20 -d 0
19:46:23.80 SUCCESS: file_write -o create -f /mnt/testdir/file2 -b 8192 -c 20 -d 0
19:46:23.80 SUCCESS: file_write -o create -f /mnt/testdir/file3 -b 8192 -c 20 -d 0
19:46:23.81 SUCCESS: file_write -o create -f /mnt/testdir/file4 -b 8192 -c 20 -d 0
19:46:23.81 SUCCESS: file_write -o create -f /mnt/testdir/file5 -b 8192 -c 20 -d 0
19:46:23.81 SUCCESS: file_write -o create -f /mnt/testdir/file6 -b 8192 -c 20 -d 0
19:46:23.82 SUCCESS: file_write -o create -f /mnt/testdir/file7 -b 8192 -c 20 -d 0
19:46:23.82 SUCCESS: file_write -o create -f /mnt/testdir/file8 -b 8192 -c 20 -d 0
19:46:23.82 SUCCESS: file_write -o create -f /mnt/testdir/file9 -b 8192 -c 20 -d 0
19:46:23.83 SUCCESS: file_write -o create -f /mnt/testdir/file10 -b 8192 -c 20 -d 0
19:46:23.83 SUCCESS: file_write -o create -f /mnt/testdir/file11 -b 8192 -c 20 -d 0
19:46:23.83 SUCCESS: file_write -o create -f /mnt/testdir/file12 -b 8192 -c 20 -d 0
19:46:23.84 SUCCESS: file_write -o create -f /mnt/testdir/file13 -b 8192 -c 20 -d 0
19:46:23.84 SUCCESS: file_write -o create -f /mnt/testdir/file14 -b 8192 -c 20 -d 0
19:46:23.84 SUCCESS: file_write -o create -f /mnt/testdir/file15 -b 8192 -c 20 -d 0
19:46:23.85 SUCCESS: file_write -o create -f /mnt/testdir/file16 -b 8192 -c 20 -d 0
19:46:23.85 SUCCESS: file_write -o create -f /mnt/testdir/file17 -b 8192 -c 20 -d 0
19:46:23.85 SUCCESS: file_write -o create -f /mnt/testdir/file18 -b 8192 -c 20 -d 0
19:46:23.85 SUCCESS: file_write -o create -f /mnt/testdir/file19 -b 8192 -c 20 -d 0
19:46:23.86 SUCCESS: file_write -o create -f /mnt/testdir/file20 -b 8192 -c 20 -d 0
19:46:23.86 NOTE: Create a tarball from /mnt/testdir contents...
19:46:23.86 SUCCESS: cd /mnt/testdir
19:46:23.89 SUCCESS: tar cf /tmp/zfstests_snapshot_002.Mrpx5c/original.tar .
19:46:23.89 SUCCESS: cd //var/tmp/test_results/20230505T161358
19:46:23.89 NOTE: Create a snapshot and mount it...
19:46:23.96 SUCCESS: zfs snapshot testpool/testfs@testsnap
19:46:23.96 NOTE: Remove all of the original files...
19:46:23.96 SUCCESS: rm -f /mnt/testdir/file1 /mnt/testdir/file10 /mnt/testdir/file11 /mnt/testdir/file12 /mnt/testdir/file13 /mnt/testdir/file14 /mnt/testdir/file15 /mnt/testdir/file16 /mnt/testdir/file17 /mnt/testdir/file18 /mnt/testdir/file19 /mnt/testdir/file2 /mnt/testdir/file20 /mnt/testdir/file3 /mnt/testdir/file4 /mnt/testdir/file5 /mnt/testdir/file6 /mnt/testdir/file7 /mnt/testdir/file8 /mnt/testdir/file9
19:46:23.96 NOTE: Create tarball of snapshot...
19:46:23.97 SUCCESS: cd /mnt/testdir/.zfs/snapshot/testsnap
19:46:23.97 SUCCESS: tar cf /tmp/zfstests_snapshot_002.Mrpx5c/snapshot.tar .
19:46:23.98 SUCCESS: cd /var/tmp/test_results/20230505T161358
19:46:23.98 SUCCESS: mkdir /mnt/testdir/original /mnt/testdir/snapshot
19:46:23.98 SUCCESS: cd /mnt/testdir/original
19:46:23.99 SUCCESS: tar xf /tmp/zfstests_snapshot_002.Mrpx5c/original.tar
19:46:23.99 SUCCESS: cd /mnt/testdir/snapshot
19:46:24.00 SUCCESS: tar xf /tmp/zfstests_snapshot_002.Mrpx5c/snapshot.tar
19:46:24.00 SUCCESS: cd /var/tmp/test_results/20230505T161358
19:46:24.00 NOTE: This rsync package does not support --crtimes (-N).
19:46:24.05 .d..t....... ./
19:46:24.05 ERROR: directory_diff /mnt/testdir/original /mnt/testdir/snapshot exited 1

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