Re: [PATCH v2 2/3] ext4: fix the parsing of empty string mount parameters

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hi, Luis Henriques,

we noticed in
it was mentioned this patch is for "ext4/053 fstest failure",
however, in our tests, 053 can pass on parent but fail on this commit.

12dbddcebcb8e fs_parser: add helper to define parameters with string and flag types
2de45c422fe6a ext4: fix the parsing of empty string mount parameters

12dbddcebcb8e3e1 2de45c422fe6ae4f64d35df99cd
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :6          100%           6:6

not sure if there is a xfstests patch works with this patch? Thanks!

below report just FYI.


kernel test robot noticed "" on:

commit: 2de45c422fe6ae4f64d35df99cdaf2c6fee2a5ac ("[PATCH v2 2/3] ext4: fix the parsing of empty string mount parameters")
base: dev
patch link:
patch subject: [PATCH v2 2/3] ext4: fix the parsing of empty string mount parameters

in testcase: xfstests
version: xfstests-x86_64-9b6df9a0-1_20240318
with following parameters:

	disk: 4HDD
	fs: ext4
	test: ext4-053

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:

2024-03-22 09:38:10 export TEST_DIR=/fs/sdb1
2024-03-22 09:38:10 export TEST_DEV=/dev/sdb1
2024-03-22 09:38:10 export FSTYP=ext4
2024-03-22 09:38:10 export SCRATCH_MNT=/fs/scratch
2024-03-22 09:38:10 mkdir /fs/scratch -p
2024-03-22 09:38:10 export SCRATCH_DEV=/dev/sdb4
2024-03-22 09:38:10 echo ext4/053
2024-03-22 09:38:10 ./check -E tests/exclude/ext4 ext4/053
FSTYP         -- ext4
PLATFORM      -- Linux/x86_64 lkp-skl-d05 6.8.0-rc3-00019-g2de45c422fe6 #1 SMP PREEMPT_DYNAMIC Sat Mar 16 03:20:13 CST 2024
MKFS_OPTIONS  -- -F /dev/sdb4
MOUNT_OPTIONS -- -o acl,user_xattr /dev/sdb4 /fs/scratch

ext4/053       [failed, exit status 1]- output mismatch (see /lkp/benchmarks/xfstests/results//ext4/053.out.bad)
    --- tests/ext4/053.out	2024-03-18 16:30:59.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//ext4/053.out.bad	2024-03-22 09:44:06.379217460 +0000
    @@ -1,2 +1,3 @@
     QA output created by 053
     Silence is golden.
    +SHOULD FAIL mounting ext4 "test_dummy_encryption=" (mount unexpectedly succeeded) FAILED
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/ext4/053.out /lkp/benchmarks/xfstests/results//ext4/053.out.bad'  to see the entire diff)
Ran: ext4/053
Failures: ext4/053
Failed 1 of 1 tests

The kernel config and materials to reproduce are available at:

0-DAY CI Kernel Test Service

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