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Date:   Mon, 11 Nov 2019 23:56:58 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Jan Stancek <jstancek@...hat.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        LTP List <ltp@...ts.linux.it>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org, chrubis <chrubis@...e.cz>,
        open list <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Mark Brown <broonie@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        lkft-triage@...ts.linaro.org,
        linux-ext4 <linux-ext4@...r.kernel.org>,
        "Theodore Ts'o" <tytso@....edu>
Subject: Re: LTP: diotest4.c:476: read to read-only space. returns 0: Success

On Mon, 11 Nov 2019 at 16:09, Jan Stancek <jstancek@...hat.com> wrote:
>
>
> ----- Original Message -----
> > Is this a new test?
>
> No, it's not new.
>
> > If not why was this never reported?  Sounds like
> > we should add this test case to xfstests.
>
> I'm guessing not that many users still run 32bit kernels.
> Naresh' setup is using ext4, so I assume he noticed only
> after recent changes in linux-next wrt. directio and ext4.

That's true.
Started noticing recently from Linux next-20191107 kernel on i386 and arm32.

Steps to reproduce:
./runltp -f dio -d /mounted-ext4-drive

- Naresh

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