Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
MIME-Version: 1.0
References: <20190923003846.GB15734@shao2-debian> <871rw7l9dv.fsf@rpws.prws.suse.cz>
 <20190923153908.GA379@dell5510>
In-Reply-To: <20190923153908.GA379@dell5510>
From:   Andy Lutomirski <luto@kernel.org>
Date:   Mon, 23 Sep 2019 11:10:41 -0700
Message-ID: <CALCETrWCQyh=QkLU-Zcy7ijb8butWGddvPiuaPuu0-tLd+ur-w@mail.gmail.com>
Subject: Re: [LTP] 12abeb544d: ltp.read_all_dev.fail
To:     Petr Vorel <pvorel@suse.cz>
Cc:     Richard Palethorpe <rpalethorpe@suse.de>, ltp@lists.linux.it,
        Andy Lutomirski <luto@kernel.org>, LKP <lkp@01.org>,
        LKML <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Sep 23, 2019 at 8:39 AM Petr Vorel <pvorel@suse.cz> wrote:
>
> Hi,
>
> > > FYI, we noticed the following commit (built with gcc-7):
>
> > > commit: 12abeb544d548f55f56323fc6e5e6c0fb74f58e1 ("horrible test hack")
> > > https://kernel.googlesource.com/pub/scm/linux/kernel/git/luto/linux.git random/kill-it
>
> ...
> > > tst_test.c:1108: INFO: Timeout per run is 0h 05m 00s
> > > Test timeouted, sending SIGKILL!
> > > tst_test.c:1148: INFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
> > > tst_test.c:1149: BROK: Test killed! (timeout?)
>
> > So perhaps this is caused by reads of /dev/random hanging?
>
> > At any rate,
> > I suppose this is intended to deliberately break something, so we can
> > ignore it.
> Yep, I'd ignore it, [1] really looks like the commit description "horrible test hack" :)
>

Indeed.  I should have pushed this to my not-for-automated-testing tree.

--Andy