sync_file_range02 from ubuntu_ltp_syscalls failed with XFS on 4.4

[Po-Hsu Lin]

Test failed xfs filesystem:
    tst_test.c:1278: INFO: Testing on xfs
    tst_mkfs.c:90: INFO: Formatting /dev/loop0 with xfs opts='' extra opts=''
    tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
    sync_file_range02.c:71: PASS: Sync equals write
    sync_file_range02.c:74: FAIL: Sync inside of write: Synced 25165824, expected 16777216
    sync_file_range02.c:71: PASS: Sync overlaps with write

 startup='Mon Nov 18 08:59:23 2019'
 tst_device.c:238: INFO: Using test device LTP_DEV='/dev/loop0'
 tst_supported_fs_types.c:59: INFO: Kernel supports ext2
 tst_supported_fs_types.c:43: INFO: mkfs.ext2 does exist
 tst_supported_fs_types.c:59: INFO: Kernel supports ext3
 tst_supported_fs_types.c:43: INFO: mkfs.ext3 does exist
 tst_supported_fs_types.c:59: INFO: Kernel supports ext4
 tst_supported_fs_types.c:43: INFO: mkfs.ext4 does exist
 tst_supported_fs_types.c:59: INFO: Kernel supports xfs
 tst_supported_fs_types.c:43: INFO: mkfs.xfs does exist
 tst_supported_fs_types.c:59: INFO: Kernel supports btrfs
 tst_supported_fs_types.c:39: INFO: mkfs.btrfs does not exist
 tst_supported_fs_types.c:59: INFO: Kernel supports vfat
 tst_supported_fs_types.c:43: INFO: mkfs.vfat does exist
 tst_supported_fs_types.c:82: INFO: Filesystem exfat is not supported
 tst_test.c:1278: INFO: Testing on ext2
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext2 opts='' extra opts=''
 mke2fs 1.42.9 (4-Feb-2014)
 tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:71: PASS: Sync inside of write
 sync_file_range02.c:71: PASS: Sync overlaps with write
 tst_test.c:1278: INFO: Testing on ext3
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext3 opts='' extra opts=''
 mke2fs 1.42.9 (4-Feb-2014)
 tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:71: PASS: Sync inside of write
 sync_file_range02.c:71: PASS: Sync overlaps with write
 tst_test.c:1278: INFO: Testing on ext4
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with ext4 opts='' extra opts=''
 mke2fs 1.42.9 (4-Feb-2014)
 tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:71: PASS: Sync inside of write
 sync_file_range02.c:71: PASS: Sync overlaps with write
 tst_test.c:1278: INFO: Testing on xfs
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with xfs opts='' extra opts=''
 tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:74: FAIL: Sync inside of write: Synced 25165824, expected 16777216
 sync_file_range02.c:71: PASS: Sync overlaps with write
 tst_test.c:1278: INFO: Testing on vfat
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with vfat opts='' extra opts=''
 tst_test.c:1217: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:111: INFO: Pre-filling file
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:71: PASS: Sync inside of write
 sync_file_range02.c:71: PASS: Sync overlaps with write

 Summary:
 passed 14
 failed 1
 skipped 0
 warnings 0
 tag=sync_file_range02 stime=1574067563 dur=4 exit=exited stat=1 core=no cu=0 cs=57

[Po-Hsu Lin (cypressyew)]

Spotted on X-kvm 4.4.0
Failed on XFS as well.

[Po-Hsu Lin (cypressyew)]

Passed with X/T 4.4
 tst_mkfs.c:90: INFO: Formatting /dev/loop0 with xfs opts='' extra opts=''
 tst_test.c:1229: INFO: Timeout per run is 0h 05m 00s
 sync_file_range02.c:71: PASS: Sync equals write
 sync_file_range02.c:71: PASS: Sync inside of write
 sync_file_range02.c:71: PASS: Sync overlaps with write

Closing this bug.