Greeting,

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

commit: 09d40ccb5bf450e6ffb2f0bdac7d3a1ff4eb1917 ("[PATCH 3/5] btrfs: Convert compression description strings into system flags.")
url: https://github.com/0day-ci/linux/commits/Li-Zhang/btrfs-Cleanup-BTRFS_INODE_NOCOMPRESS-usage-and-extend/20220116-165237
base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
patch link: https://lore.kernel.org/linux-btrfs/1642323009-1953-1-git-send-email-zhanglikernel@gmail.com

in testcase: xfstests
version: xfstests-x86_64-972d710-1_20220117
with following parameters:

	disk: 6HDD
	fs: btrfs
	test: btrfs-group-04
	ucode: 0x28

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: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz 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>

2022-01-18 21:31:27 export TEST_DIR=/fs/sda1
2022-01-18 21:31:27 export TEST_DEV=/dev/sda1
2022-01-18 21:31:27 export FSTYP=btrfs
2022-01-18 21:31:27 export SCRATCH_MNT=/fs/scratch
2022-01-18 21:31:27 mkdir /fs/scratch -p
2022-01-18 21:31:27 export SCRATCH_DEV_POOL="/dev/sda2 /dev/sda3 /dev/sda4 /dev/sda5 /dev/sda6"
2022-01-18 21:31:27 sed "s:^:btrfs/:" //lkp/benchmarks/xfstests/tests/btrfs-group-04
2022-01-18 21:31:27 ./check btrfs/040 btrfs/041 btrfs/042 btrfs/043 btrfs/044 btrfs/045 btrfs/046 btrfs/047 btrfs/048 btrfs/049
FSTYP         -- btrfs
PLATFORM      -- Linux/x86_64 lkp-hsw-d01 5.16.0-rc8-00129-g09d40ccb5bf4 #1 SMP Wed Jan 19 04:47:51 CST 2022
MKFS_OPTIONS  -- /dev/sda2
MOUNT_OPTIONS -- /dev/sda2 /fs/scratch

btrfs/040	 2s
btrfs/041	 2s
btrfs/042	 4s
btrfs/043	 1s
btrfs/044	 2s
btrfs/045	 2s
btrfs/046	 9s
btrfs/047	 1s
btrfs/048	- output mismatch (see /lkp/benchmarks/xfstests/results//btrfs/048.out.bad)
    --- tests/btrfs/048.out	2022-01-17 16:52:03.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//btrfs/048.out.bad	2022-01-18 21:31:55.278101334 +0000
    @@ -35,17 +35,11 @@
     ***
     compression=lzo
     ***
    -compression=lzo
     ***
    -compression=lzo
     ***
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/btrfs/048.out /lkp/benchmarks/xfstests/results//btrfs/048.out.bad'  to see the entire diff)
btrfs/049	 13s
Ran: btrfs/040 btrfs/041 btrfs/042 btrfs/043 btrfs/044 btrfs/045 btrfs/046 btrfs/047 btrfs/048 btrfs/049
Failures: btrfs/048
Failed 1 of 10 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.



---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang