Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 1fc3f2c3c928c88654d4716af5cc4dee07b3a1c4 ("xfs: only free posteof blocks on first close")
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git vectorized-scrub

in testcase: xfstests
version: xfstests-x86_64-1de1db8-1_20220217
with following parameters:

	disk: 4HDD
	fs: xfs
	test: xfs-group-52
	ucode: 0x21

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 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@intel.com>

2022-03-21 01:10:37 export TEST_DIR=/fs/sda1
2022-03-21 01:10:37 export TEST_DEV=/dev/sda1
2022-03-21 01:10:37 export FSTYP=xfs
2022-03-21 01:10:37 export SCRATCH_MNT=/fs/scratch
2022-03-21 01:10:37 mkdir /fs/scratch -p
2022-03-21 01:10:37 export SCRATCH_DEV=/dev/sda4
2022-03-21 01:10:37 export SCRATCH_LOGDEV=/dev/sda2
2022-03-21 01:10:37 export SCRATCH_XFS_LIST_METADATA_FIELDS=u3.sfdir3.hdr.parent.i4
2022-03-21 01:10:37 export SCRATCH_XFS_LIST_FUZZ_VERBS=random
2022-03-21 01:10:37 sed "s:^:xfs/:" //lkp/benchmarks/xfstests/tests/xfs-group-52
2022-03-21 01:10:37 ./check xfs/520 xfs/522 xfs/523 xfs/524 xfs/525 xfs/526 xfs/527 xfs/529
FSTYP         -- xfs (debug)
PLATFORM      -- Linux/x86_64 lkp-ivb-d05 5.17.0-rc8-00340-g1fc3f2c3c928 #1 SMP Mon Mar 21 07:17:57 CST 2022
MKFS_OPTIONS  -- -f /dev/sda4
MOUNT_OPTIONS -- /dev/sda4 /fs/scratch

xfs/520	 2s
xfs/522	[not run] need configuration file support in mkfs.xfs
xfs/523	[not run] need configuration file support in mkfs.xfs
xfs/524	[not run] need configuration file support in mkfs.xfs
xfs/525	[not run] need configuration file support in mkfs.xfs
xfs/526	[not run] need configuration file support in mkfs.xfs
xfs/527	 3s
xfs/529	[failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//xfs/529.out.bad)
    --- tests/xfs/529.out	2022-02-17 11:55:00.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//xfs/529.out.bad	2022-03-21 01:10:52.253667459 +0000
    @@ -4,21 +4,4 @@
     Inject reduce_max_iextents error tag
     Create fragmented file
     Verify $testfile's extent count
    -Disable reduce_max_iextents error tag
    -* Fallocate unwritten extents
    -Inject reduce_max_iextents error tag
    -Fallocate fragmented file
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/xfs/529.out /lkp/benchmarks/xfstests/results//xfs/529.out.bad'  to see the entire diff)
Ran: xfs/520 xfs/522 xfs/523 xfs/524 xfs/525 xfs/526 xfs/527 xfs/529
Not run: xfs/522 xfs/523 xfs/524 xfs/525 xfs/526
Failures: xfs/529
Failed 1 of 8 tests




To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



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https://01.org/lkp