Greeting, FYI, we noticed the following commit (built with gcc-9): commit: d5e848fd0c38ce88ca6d534c790c553369ba1c9b ("fs/f2fs: Remove f2fs_copy_page()") https://github.com/weiny2/linux-kernel.git lm-kmap-memcpy-2020-11-23 in testcase: xfstests version: xfstests-x86_64-d41dcbd-1_20201116 with following parameters: disk: 4HDD fs: f2fs test: generic-group-05 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: 8 threads Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 16G 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(a)intel.com&gt; 2021-04-27 13:23:02 export TEST_DIR=/fs/sda1 2021-04-27 13:23:02 export TEST_DEV=/dev/sda1 2021-04-27 13:23:02 export FSTYP=f2fs 2021-04-27 13:23:02 export SCRATCH_MNT=/fs/scratch 2021-04-27 13:23:02 mkdir /fs/scratch -p 2021-04-27 13:23:02 export SCRATCH_DEV=/dev/sda4 2021-04-27 13:23:02 export MKFS_OPTIONS=-f 2021-04-27 13:23:02 sed "s:^:generic/:" //lkp/benchmarks/xfstests/tests/generic-group-05 2021-04-27 13:23:02 ./check generic/100 generic/101 generic/102 generic/103 generic/104 generic/105 generic/106 generic/107 generic/108 generic/109 generic/110 generic/111 generic/112 generic/113 generic/114 generic/115 generic/116 generic/117 generic/118 generic/119 FSTYP -- f2fs PLATFORM -- Linux/x86_64 lkp-ivb-d01 5.10.0-rc2-00012-gd5e848fd0c38 #1 SMP Thu Nov 26 12:42:09 CST 2020 MKFS_OPTIONS -- -f /dev/sda4 MOUNT_OPTIONS -- -o acl,user_xattr /dev/sda4 /fs/scratch generic/100 11s generic/101 7s generic/102 4s generic/103 - output mismatch (see /lkp/benchmarks/xfstests/results//generic/103.out.bad) --- tests/generic/103.out 2020-11-16 06:09:57.000000000 +0000 +++ /lkp/benchmarks/xfstests/results//generic/103.out.bad 2021-04-27 13:23:44.459753561 +0000 @@ -1,2 +1,3 @@ QA output created by 103 +fallocate: No space left on device Silence is golden. ... (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/103.out /lkp/benchmarks/xfstests/results//generic/103.out.bad' to see the entire diff) generic/104 7s generic/105 6s generic/106 7s generic/107 6s generic/108 3s generic/109 8s generic/110 [not run] Reflink not supported by test filesystem type: f2fs generic/111 [not run] Reflink not supported by test filesystem type: f2fs generic/112 [failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//generic/112.out.bad) --- tests/generic/112.out 2020-11-16 06:09:57.000000000 +0000 +++ /lkp/benchmarks/xfstests/results//generic/112.out.bad 2021-04-27 13:24:26.128752421 +0000 @@ -4,15 +4,4 @@ ----------------------------------------------- fsx.0 : -A -d -N numops -S 0 ----------------------------------------------- - ------------------------------------------------ -fsx.1 : -A -d -N numops -S 0 -x ------------------------------------------------ ... (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/112.out /lkp/benchmarks/xfstests/results//generic/112.out.bad' to see the entire diff) generic/113 176s generic/114 10s generic/115 [not run] Reflink not supported by test filesystem type: f2fs generic/116 [not run] Reflink not supported by test filesystem type: f2fs generic/117 11s generic/118 [not run] Reflink not supported by test filesystem type: f2fs generic/119 [not run] Reflink not supported by test filesystem type: f2fs Ran: generic/100 generic/101 generic/102 generic/103 generic/104 generic/105 generic/106 generic/107 generic/108 generic/109 generic/110 generic/111 generic/112 generic/113 generic/114 generic/115 generic/116 generic/117 generic/118 generic/119 Not run: generic/110 generic/111 generic/115 generic/116 generic/118 generic/119 Failures: generic/103 generic/112 Failed 2 of 20 tests To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Thanks, Oliver Sang