From: "Theodore Y. Ts'o" Subject: Re: [PATCH v4 1/2] dax: dax_layout_busy_page() warn on !exceptional Date: Mon, 13 Aug 2018 08:46:02 -0400 Message-ID: <20180813124602.GA26513@thunk.org> References: <20180710191031.17919-1-ross.zwisler@linux.intel.com> <20180710191031.17919-2-ross.zwisler@linux.intel.com> <6ca60cf6-f1dc-27d5-fb79-7547aea39dfa@redhat.com> <20180810203349.GH627@thunk.org> <20180811021053.GB14368@thunk.org> <20180813101252.GC8927@quack2.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: sandeen-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, "Darrick J. Wong" , linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, Dave Chinner , Lukas Czerner , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig To: Jan Kara Return-path: Content-Disposition: inline In-Reply-To: <20180813101252.GC8927-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" List-Id: linux-ext4.vger.kernel.org On Mon, Aug 13, 2018 at 12:12:52PM +0200, Jan Kara wrote: > > The generic/081 regression appears to be a device-mapper issue... > > I'll see if this reproduces for me. Doesn't seem to be related to the DAX > patches you caary though. It does seem to be a DAX-specific failure though. > > The generic/344 failure seems to be caused by a WARNING triggered in > > the nvdimm code: > > OK, apparently this is nothing new for you as generic/344 fails for you > even with 3.17. But it should not :). I'll try to see if I can reproduce > this in my test setup during more test runs (I don't remember seeing it > during occasional runs I do) and debug it further. Thanks! In case it wasn't clear, I wasn't planning on letting these failures prevent the patches from going upstream. As you say, the generic/081 failure looks unrelated to ext4, and the generic/344 isn't a regression. - Ted