FYI, we noticed the following commit: commit: 7614f2cdaf96a30c5d0ec725ab2525140bebc7ec ("statx: Add a system call to make enhanced file info available") git://internal_merge_and_test_tree devel-catchup-201612150816 in testcase: xfstests with following parameters: disk: 4HDD fs: f2fs test: generic-quick1 test-description: xfstests is a regression test suite for xfs and other files ystems. test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git on test machine: 4 threads Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz with 6G memory caused below changes: 2016-12-24 00:45:32 export TEST_DIR=/fs/sda5 2016-12-24 00:45:32 export TEST_DEV=/dev/sda5 2016-12-24 00:45:32 export FSTYP=f2fs 2016-12-24 00:45:32 export SCRATCH_MNT=/fs/scratch 2016-12-24 00:45:32 mkdir /fs/scratch -p 2016-12-24 00:45:32 export SCRATCH_DEV=/dev/sda8 2016-12-24 00:45:32 ./check generic/001 generic/002 generic/003 generic/004 generic/005 generic/006 generic/007 generic/008 generic/009 generic/011 generic/012 generic/014 generic/015 generic/015 generic/016 generic/018 generic/020 generic/021 generic/022 generic/023 generic/024 generic/025 generic/026 generic/028 generic/029 generic/030 generic/031 generic/032 generic/033 generic/034 generic/035 generic/036 generic/037 generic/039 generic/040 generic/041 generic/042 generic/043 generic/044 generic/045 generic/046 generic/047 generic/048 generic/049 generic/050 generic/051 generic/052 generic/052 generic/053 generic/054 generic/054 generic/055 generic/055 generic/056 generic/057 generic/058 generic/059 generic/060 generic/061 generic/062 generic/064 generic/065 generic/066 generic/067 generic/069 generic/071 generic/072 generic/073 generic/077 generic/078 generic/079 generic/080 generic/082 generic/084 generic/085 generic/086 generic/087 FSTYP -- f2fs PLATFORM -- Linux/x86_64 snb-drag 4.9.0-00001-g7614f2c MKFS_OPTIONS -- /dev/sda8 MOUNT_OPTIONS -- -o acl,user_xattr /dev/sda8 /fs/scratch generic/001 - output mismatch (see /lkp/benchmarks/xfstests/results//generic/001.out.bad) --- tests/generic/001.out 2016-11-10 09:18:29.000000000 +0800 +++ /lkp/benchmarks/xfstests/results//generic/001.out.bad 2016-12-24 00:45:37.065656027 +0800 @@ -1,9 +1,14 @@ QA output created by 001 cleanup setup .................................... -iter 1 chain ... check .................................... -iter 2 chain ... check .................................... -iter 3 chain ... check .................................... -iter 4 chain ... check .................................... ... (Run 'diff -u tests/generic/001.out /lkp/benchmarks/xfstests/results//generic/001.out.bad' to see the entire diff) generic/002 0s generic/003 - output mismatch (see /lkp/benchmarks/xfstests/results//generic/003.out.bad) --- tests/generic/003.out 2016-11-10 09:18:29.000000000 +0800 +++ /lkp/benchmarks/xfstests/results//generic/003.out.bad 2016-12-24 00:45:54.126657270 +0800 @@ -1,2 +1,4 @@ QA output created by 003 +ERROR: access time has changed for dir in read-only filesystem +ERROR: access time has changed for file in read-only filesystem Silence is golden ... (Run 'diff -u tests/generic/003.out /lkp/benchmarks/xfstests/results//generic/003.out.bad' to see the entire diff) generic/004 1s generic/005 0s To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Thanks, Xiaolong