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References: <20210212162416.2756937-1-almaz.alexandrovich@paragon-software.com>
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From:   Hanabishi Recca <irecca.kun@gmail.com>
Date:   Sun, 14 Feb 2021 00:00:26 +0500
Message-ID: <CAOehnrMK_9uP5j+QCF2qy_08yJEr_u9TEPwJJFogXQCeNFm6Gg@mail.gmail.com>
Subject: Re: [PATCH v21 00/10] NTFS read-write driver GPL implementation by
 Paragon Software
To:     Oleksandr Natalenko <oleksandr@natalenko.name>
Cc:     Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
        linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk,
        linux-kernel@vger.kernel.org, pali@kernel.org, dsterba@suse.cz,
        aaptel@suse.com, willy@infradead.org, rdunlap@infradead.org,
        joe@perches.com, mark@harmstone.com, nborisov@suse.com,
        linux-ntfs-dev@lists.sourceforge.net, anton@tuxera.com,
        dan.carpenter@oracle.com, hch@lst.de, ebiggers@kernel.org,
        andy.lavr@gmail.com, kasep pisan <babam.yes@gmail.com>
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On Sat, Feb 13, 2021 at 2:27 AM Oleksandr Natalenko
<oleksandr@natalenko.name> wrote:

> Hanabishi, babam (both in Cc), here [2] you've reported some issues with
> accessing some files and with hidden attributes. You may reply to this
> email of mine with detailed description of your issues, and maybe
> developers will answer you.

There is strange files access issue since v18 update. Some random
files on partition became inaccessible, can't be read or even deleted.
For example:

# ls -la
ls: cannot access 'NlsStrings.js': No such file or directory
total 176
drwxrwxrwx 1 root root  4096 Oct 20 10:41 .
drwxrwxrwx 1 root root 12288 Oct 20 10:42 ..
-rwxrwxrwx 1 root root  8230 Oct 19 17:02 Layer.js < this file is ok
-????????? ? ?    ?        ?            ? NlsStrings.js < this file is
inaccessible
...

To reproduce the issue try to mount a NTFS partition with deep
structure and large files amout. Then run on it some recursive file
command, e.g. 'du -sh', it will list all access errors.
Can't say what exactly causes it. Filesystem itself is not damaged,
when mounting it via ntfs-3g, ntfs3 <18 or in Windows it works
normally. The files is not damaged and chkdsk report no errors.