Re: [PATCHSET 0/3] fstests: refactor ext4-specific code

[Zorro Lang <zlang@redhat.com>]

On Tue, Aug 02, 2022 at 09:21:40PM -0700, Darrick J. Wong wrote:
> Hi all,
> 
> This series aims to make it so that fstests can install device mapper
> filters for external log devices.  Before we can do that, however, we
> need to change fstests to pass the device path of the jbd2 device to
> mount and mkfs.  Before we can do /that/, refactor all the ext4-specific
> code out of common/rc into a separate common/ext4 file.
> 
> If you're going to start using this mess, you probably ought to just
> pull from my git trees, which are linked below.
> 
> This is an extraordinary way to destroy everything.  Enjoy!
> Comments and questions are, as always, welcome.
> 
> --D
> 
> fstests git tree:
> https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=refactor-ext4-helpers
> ---

Hi Darrick,

There're 3 failures[1] if test ext4 with external logdev, after merging this
patchset.
The g/629 is always failed with or without this patchset, it fails if test
with external logdev.
The g/250 and g/252 fail due to _scratch_mkfs_sized doesn't use common ext4
mkfs helper, so can't deal with SCRATCH_LOGDEV well.

Thanks,
Zorro

[1]
SECTION       -- logdev
FSTYP         -- ext4
PLATFORM      -- Linux/x86_64 hp-dl380pg8-01 5.19.0-0.rc2.21.fc37.x86_64+debug #1 SMP PREEMPT_DYNAMIC Mon Jun 13 14:55:18 UTC 2022
MKFS_OPTIONS  -- -F -J device=/dev/loop0 /dev/sda3
MOUNT_OPTIONS -- -o acl,user_xattr -o context=system_u:object_r:root_t:s0 -o journal_path=/dev/loop0 /dev/sda3 /mnt/scratch

generic/250 2s ... - output mismatch (see /root/git/xfstests/results//logdev/generic/250.out.bad)
    --- tests/generic/250.out   2022-04-29 23:07:23.262498285 +0800
    +++ /root/git/xfstests/results//logdev/generic/250.out.bad  2022-08-06 22:26:45.179294149 +0800
    @@ -1,9 +1,19 @@
     QA output created by 250
     Format and mount
    +umount: /mnt/scratch: not mounted.
    +mount: /mnt/scratch: wrong fs type, bad option, bad superblock on /dev/mapper/error-test, missing codepage or helper program, or other error.
    +       dmesg(1) may have more information after failed mount system call.
     Create the original files
    +umount: /mnt/scratch: not mounted.
    ...
    (Run 'diff -u /root/git/xfstests/tests/generic/250.out /root/git/xfstests/results//logdev/generic/250.out.bad'  to see the entire diff)
generic/252 2s ... - output mismatch (see /root/git/xfstests/results//logdev/generic/252.out.bad)
    --- tests/generic/252.out   2022-04-29 23:07:23.264498308 +0800
    +++ /root/git/xfstests/results//logdev/generic/252.out.bad  2022-08-06 22:26:48.495330525 +0800
    @@ -1,10 +1,19 @@
     QA output created by 252
     Format and mount
    +umount: /mnt/scratch: not mounted.
    +mount: /mnt/scratch: wrong fs type, bad option, bad superblock on /dev/mapper/error-test, missing codepage or helper program, or other error.
    +       dmesg(1) may have more information after failed mount system call.
     Create the original files
    +umount: /mnt/scratch: not mounted.
    ...
    (Run 'diff -u /root/git/xfstests/tests/generic/252.out /root/git/xfstests/results//logdev/generic/252.out.bad'  to see the entire diff)
generic/629 3s ... - output mismatch (see /root/git/xfstests/results//logdev/generic/629.out.bad)
    --- tests/generic/629.out   2022-04-29 23:07:23.545501491 +0800
    +++ /root/git/xfstests/results//logdev/generic/629.out.bad  2022-08-06 22:26:50.810355920 +0800
    @@ -1,4 +1,5 @@
     QA output created by 629
    +mke2fs 1.46.5 (30-Dec-2021)
     test o_sync write
     310f146ce52077fcd3308dcbe7632bb2  SCRATCH_MNT/0
     test unaligned copy range o_sync
    ...
    (Run 'diff -u /root/git/xfstests/tests/generic/629.out /root/git/xfstests/results//logdev/generic/629.out.bad'  to see the entire diff)
Ran: generic/250 generic/252 generic/629
Failures: generic/250 generic/252 generic/629
Failed 3 of 3 tests


>  common/config |    4 +
>  common/ext4   |  176 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  common/rc     |  177 ++-------------------------------------------------------
>  common/xfs    |   23 +++++++
>  4 files changed, 208 insertions(+), 172 deletions(-)
>  create mode 100644 common/ext4
>