Re: [PATCH v4 2/2] loop: use vfs_getattr_nosec for accurate file size

[kernel test robot <oliver.sang@intel.com>]

Hello,

kernel test robot noticed "xfstests.generic.563.fail" on:

commit: fb455b8a6ac932603a8c0dbb787f8330b0924834 ("[PATCH v4 2/2] loop: use vfs_getattr_nosec for accurate file size")
url: https://github.com/intel-lab-lkp/linux/commits/Rajeev-Mishra/loop-use-vfs_getattr_nosec-for-accurate-file-size/20250815-031401
base: https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-next
patch link: https://lore.kernel.org/all/20250814191004.60340-2-rajeevm@hpe.com/
patch subject: [PATCH v4 2/2] loop: use vfs_getattr_nosec for accurate file size

in testcase: xfstests
version: xfstests-x86_64-e1e4a0ea-1_20250714
with following parameters:

	disk: 4HDD
	fs: ext4
	test: generic-563



config: x86_64-rhel-9.4-func
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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202508200409.b2459c02-lkp@intel.com

2025-08-17 21:02:18 export TEST_DIR=/fs/sda1
2025-08-17 21:02:18 export TEST_DEV=/dev/sda1
2025-08-17 21:02:18 export FSTYP=ext4
2025-08-17 21:02:18 export SCRATCH_MNT=/fs/scratch
2025-08-17 21:02:18 mkdir /fs/scratch -p
2025-08-17 21:02:18 export SCRATCH_DEV=/dev/sda4
2025-08-17 21:02:18 echo generic/563
2025-08-17 21:02:18 ./check -E tests/exclude/ext4 generic/563
FSTYP         -- ext4
PLATFORM      -- Linux/x86_64 lkp-skl-d03 6.17.0-rc1-00020-gfb455b8a6ac9 #1 SMP PREEMPT_DYNAMIC Mon Aug 18 03:05:49 CST 2025
MKFS_OPTIONS  -- -F /dev/sda4
MOUNT_OPTIONS -- -o acl,user_xattr /dev/sda4 /fs/scratch

generic/563       [failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//generic/563.out.bad)
    --- tests/generic/563.out	2025-07-14 17:48:52.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//generic/563.out.bad	2025-08-17 21:02:31.367411171 +0000
    @@ -1,14 +1 @@
     QA output created by 563
    -read/write
    -read is in range
    -write is in range
    -write -> read/write
    -read is in range
    -write is in range
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/563.out /lkp/benchmarks/xfstests/results//generic/563.out.bad'  to see the entire diff)
Ran: generic/563
Failures: generic/563
Failed 1 of 1 tests




The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250820/202508200409.b2459c02-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki