Re: [PATCH 2/2] overlay/04{1,3,4}: enable xino feature

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On Tue, Apr 24, 2018 at 10:48 PM, Eryu Guan <guaneryu@xxxxxxxxx> wrote:
> On Wed, Apr 18, 2018 at 05:16:58PM +0300, Amir Goldstein wrote:
>> These tests check for constant inode number on copy up with nonsamefs
>> layer configuration. This problem is fixes only when opting-in with the
>> xino=on mount option, so let the tests enable the mount option on new
>> kernels and notrun on old kernels.
>>
>> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
>> ---
>>  tests/overlay/041 | 15 +++++++++++----
>>  tests/overlay/043 | 13 ++++++++++---
>>  tests/overlay/044 | 15 +++++++++++----
>>  3 files changed, 32 insertions(+), 11 deletions(-)
>>
>> diff --git a/tests/overlay/041 b/tests/overlay/041
>> index 4e72348..9de61f7 100755
>> --- a/tests/overlay/041
>> +++ b/tests/overlay/041
>> @@ -70,7 +70,14 @@ _scratch_mkfs
>>  upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
>>  workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
>>
>> -_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir
>> +# enabling xino in this test requires that base filesystem inode numbers will
>> +# not use bit 63 in inode number of the test files, because bit 63 is used by
>> +# overlayfs to indicate the layer. Let's just assume that this is true for all
>> +# tested filesystems and if we are wrong, the test may fail
>> +_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o xino=on ||
>> +     _notrun "mount overlay with xino failed"
>> +_check_scratch_fs_option "xino" || \
>> +     _notrun "faild to enable xino"
>>
>>  test_dir=$SCRATCH_MNT/test_dir/
>>
>> @@ -171,7 +178,7 @@ subdir_d=$($here/src/t_dir_type $pure_lower_dir $pure_lower_subdir_st_ino)
>>  _scratch_unmount
>>
>>  # check overlayfs
>> -_overlay_check_scratch_dirs $lowerdir $upperdir $workdir
>> +_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o xino=on
>>
>>  # Verify pure lower residing in dir which has another lower layer
>>  middir=$OVL_BASE_TEST_DIR/$seq-ovl-mid
>> @@ -189,7 +196,7 @@ _scratch_mkfs
>>  upperdir=$OVL_BASE_SCRATCH_MNT/ovl-upper
>>  workdir=$OVL_BASE_SCRATCH_MNT/ovl-work
>>
>> -_overlay_scratch_mount_dirs $middir:$lowerdir $upperdir $workdir
>> +_overlay_scratch_mount_dirs $middir:$lowerdir $upperdir $workdir -o xino=on
>>
>>  # Copy up test_dir
>>  touch $test_dir/test_file
>> @@ -212,7 +219,7 @@ subdir_d=$($here/src/t_dir_type $pure_lower_dir $pure_lower_subdir_st_ino)
>>       echo "Pure lower in dir which has another lower layer: Invalid d_ino reported for subdir"
>>
>>  # check overlayfs
>> -_overlay_check_scratch_dirs "$middir:$lowerdir" $upperdir $workdir
>> +_overlay_check_scratch_dirs "$middir:$lowerdir" $upperdir $workdir -o xino=on
>
> 041 fails the fsck.overlay check, but I think that's a different issue.

Right. Will look into that.

>
> *** fsck.overlay output ***
> fsck.overlay:[Error]: Faile to resolve upperdir:/mnt/scratch/ovl-upper:No such file or directory
> Please specify correct lowerdirs and upperdir!
>
> Usage:
>         fsck.overlay [-o lowerdir=<lowers>,upperdir=<upper>,workdir=<work>] [-pnyvhV]
>
> Options:
> -o,                       specify underlying directories of overlayfs
>                           multiple lower directories use ':' as separator
> -p,                       automatic repair (no questions)
> -n,                       make no changes to the filesystem
> -y,                       assume "yes" to all questions
> -v, --verbose             print more messages of overlayfs
> -h, --help                display this usage of overlayfs
> -V, --version             display version information
> *** end fsck.overlay output
>
>>
>>  echo "Silence is golden"
>>  status=0
>> diff --git a/tests/overlay/043 b/tests/overlay/043
>> index 46df686..66771c0 100755
>> --- a/tests/overlay/043
>> +++ b/tests/overlay/043
>> @@ -83,7 +83,14 @@ _scratch_mkfs >>$seqres.full 2>&1
>>  upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
>>  workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
>>
>> -_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir
>> +# enabling xino in this test requires that base filesystem inode numbers will
>> +# not use bit 63 in inode number of the test files, because bit 63 is used by
>> +# overlayfs to indicate the layer. Let's just assume that this is true for all
>> +# tested filesystems and if we are wrong, the test may fail
>> +_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o xino=on || \
>> +     _notrun "mount overlay with xino failed"
>> +_check_scratch_fs_option "xino" || \
>> +     _notrun "faild to enable xino"
>
> 043 still fails for me, kernel is v4.17-rc2
>
> [root@fedoravm xfstests]# diff -u tests/overlay/043.out /root/workspace/xfstests/results//xfs_4k/overlay/043.out.bad
> --- tests/overlay/043.out       2018-02-25 15:15:00.135387405 +0800
> +++ /root/workspace/xfstests/results//xfs_4k/overlay/043.out.bad        2018-04-25 13:44:24.378262790 +0800
> @@ -1,2 +1,11 @@
>  QA output created by 043
> +--- /tmp/29215.after_copyup    2018-04-25 13:44:23.888271267 +0800
> ++++ /tmp/29215.after_move      2018-04-25 13:44:24.115267339 +0800
> +@@ -1,4 +1,4 @@
> +-9223372036888371331 dir
> ++50333121 dir
> + 9223372036871553155 file
> + 9223372036871553156 symlink
> + 9223372036871553157 chrdev
> +dir not found by ino 9223372036888371331 (from /tmp/29215.after_copyup)
>  Silence is golden
>
> I used ext4 as underlying filesystem, but xfs failed too.


It's a test bug. missing _require_scratch_feature redirect_dir
Like was added to the original 017 test.
Will send a patch.

Thanks,
Amir.
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