Hello, kernel test robot noticed "xfstests.generic.645.fail" on: commit: b4291c7fd9e550b91b10c3d7787b9bf5be38de67 ("fs/mnt_idmapping.c: Return -EINVAL when no map is written") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master d37e1e4c52bc60578969f391fb81f947c3e83118] in testcase: xfstests version: xfstests-x86_64-c46ca4d1-1_20240205 with following parameters: disk: 4HDD fs: f2fs test: generic-645 compiler: gcc-12 test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-lkp/202402191416.17ec9160-oliver.sang@xxxxxxxxx 2024-02-17 15:04:19 export TEST_DIR=/fs/sda1 2024-02-17 15:04:19 export TEST_DEV=/dev/sda1 2024-02-17 15:04:19 export FSTYP=f2fs 2024-02-17 15:04:19 export SCRATCH_MNT=/fs/scratch 2024-02-17 15:04:19 mkdir /fs/scratch -p 2024-02-17 15:04:19 export SCRATCH_DEV=/dev/sda4 2024-02-17 15:04:19 export MKFS_OPTIONS=-f 2024-02-17 15:04:19 echo generic/645 2024-02-17 15:04:19 ./check generic/645 FSTYP -- f2fs PLATFORM -- Linux/x86_64 lkp-skl-d03 6.8.0-rc1-00033-gb4291c7fd9e5 #1 SMP PREEMPT_DYNAMIC Sat Feb 17 22:11:35 CST 2024 MKFS_OPTIONS -- -f /dev/sda4 MOUNT_OPTIONS -- -o acl,user_xattr /dev/sda4 /fs/scratch generic/645 [failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//generic/645.out.bad) --- tests/generic/645.out 2024-02-05 17:37:40.000000000 +0000 +++ /lkp/benchmarks/xfstests/results//generic/645.out.bad 2024-02-17 15:07:42.613312168 +0000 @@ -1,2 +1,4 @@ QA output created by 645 Silence is golden +idmapped-mounts.c: 6671: nested_userns - Invalid argument - failure: sys_mount_setattr +vfstest.c: 2418: run_test - Invalid argument - failure: test that nested user namespaces behave correctly when attached to idmapped mounts ... (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/645.out /lkp/benchmarks/xfstests/results//generic/645.out.bad' to see the entire diff) Ran: generic/645 Failures: generic/645 Failed 1 of 1 tests The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240219/202402191416.17ec9160-oliver.sang@xxxxxxxxx -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki