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From: Paul Richards <paul.richards@gmail.com>
Date: Wed, 2 May 2018 20:45:41 +0100
Message-ID: <CAMoswegro+xDfdnr_KPqwVSSWxYD8qTsA9b9dkE=4tCFYZaWOw@mail.gmail.com>
Subject: Re: fs/btrfs/ctree.h:1559 warnings
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Patrik Lundquist <patrik.lundquist@gmail.com>, linux-btrfs@vger.kernel.org
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On 2 May 2018 at 20:43, Paul Richards <paul.richards@gmail.com> wrote:
> The issue I have now is that the filesystem cannot be unmounted.
> "umount" reports "target is busy", but I cannot find anything relevant
> with "lsof" or "fuser" (this is a very quiet home NAS).  Is this
> something related to the resize?
>

Oh please ignore me.  I forgot to unmount "/storage/.snapshots" before
"/storage".

Everything looks fine.