Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 72b90c090b2c1863bd9c8fd99571790ea61e714a ("ext4: fix i_version handling in ext4")
https://git.kernel.org/cgit/linux/kernel/git/jlayton/linux.git iversion

in testcase: xfstests
version: xfstests-x86_64-c1144bf-1_20220808
with following parameters:

	disk: 4HDD
	fs: ext4
	test: generic-group-16
	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 (Ivy Bridge) with 8G memory

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


generic/324       [failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//generic/324.out.bad)
     --- tests/generic/324.out	2022-08-08 17:00:46.000000000 +0000
     +++ /lkp/benchmarks/xfstests/results//generic/324.out.bad	2022-08-21 19:43:01.504119003 +0000
     @@ -22,2509 +22,5 @@
      XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
      Before: in_range(10, 40)
      After: in_range(1, -1)
     -Defragment file with 250 * 2 fragments
     -wrote 1234/1234 bytes at offset 0
     -XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
     -wrote 1234/1234 bytes at offset 123400
     ...
     (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/324.out /lkp/benchmarks/xfstests/results//generic/324.out.bad'  to see the entire diff)


=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/disk/fs/test/ucode:
   lkp-ivb-d02/xfstests/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/4HDD/ext4/generic-group-16/0x21

commit:
   97dd7d414f1e20 ("xfs: don't bump the i_version on an atime update in xfs_vn_update_time")
   72b90c090b2c18 ("ext4: fix i_version handling in ext4")

97dd7d414f1e20f8 72b90c090b2c1863bd9c8fd9957
---------------- ---------------------------
        fail:runs  %reproduction    fail:runs
            |             |             |
            :6          100%           6:6     xfstests.generic.324.fail


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


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