linux-kernel - Re: [PATCH blktests v1] nvme/040: Free loop back resources

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Date:   Thu, 15 Jun 2023 02:30:46 +0000
From:   Shinichiro Kawasaki <shinichiro.kawasaki@....com>
To:     Daniel Wagner <dwagner@...e.de>
CC:     "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Shin'ichiro Kawasaki <shinichiro@...tmail.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Hannes Reinecke <hare@...e.de>
Subject: Re: [PATCH blktests v1] nvme/040: Free loop back resources

On Jun 14, 2023 / 13:27, Daniel Wagner wrote:
> On Wed, Jun 14, 2023 at 11:13:18AM +0000, Shinichiro Kawasaki wrote:
> > On Jun 12, 2023 / 16:29, Daniel Wagner wrote:
> > > The tests does not cleanup all resources after it has finished. This
> > > leads to rm not being able to remove the TMPDIR cleanly:
> > > 
> > >   + rm -rf blktests/results/tmpdir.nvme.040.m2J
> > >   rm: cannot remove 'blktests/results/tmpdir.nvme.040.m2J': Directory not empty
> > > 
> > > Signed-off-by: Daniel Wagner <dwagner@...e.de>
> > 
> > Hi Daniel, thanks for the patch. It looks good to me. Now the test case leaves a
> > loop device. This patch avoids it. Good.
> > 
> > Question, I do not observe the rm command failure in my test environments. Do
> > you have insight why you were able to find the failure?
> 
> I am running the tests inside a VM and I am sharing a part of my host filesystem
> via NFS which contain the blktests. If I understood it correctly, the NFS server
> is behaving slightly differently here. I can't observe it either with xfs or
> btrfs.

I see, the NFS sounds triggering the failure. I've applied the patch. Thanks!