linux-kernel - Re: linux-next 0112 tree breaks fs DAX

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Date:   Mon, 16 Jan 2017 21:45:43 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Xiong Zhou <xzhou@...hat.com>
Cc:     linux-nvdimm@...1.01.org, dave.jiang@...el.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-next@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: linux-next 0112 tree breaks fs DAX

Hi Xiong,

Just cc'ing Andrew.

On Mon, 16 Jan 2017 17:29:16 +0800 Xiong Zhou <xzhou@...hat.com> wrote:
>
> On Fri, Jan 13, 2017 at 06:16:41PM +0800, Xiong Zhou wrote:
> > Hi,
> > 
> > These cases "hang" when testing with -o dax mount option:
> > xfstests generic/030 generic/34{0,4,5,6} generic/198
> > (maybe more)
> > 
> > The test programme holetest or aiodio keep running for a
> > long time. It's killable, but it seems never return.
> > 
> > With both ext4 and xfs as fs.
> > 
> > Without -o dax mount option, cases pass in seconds.
> > 
> > 0111 tree passed the tests.
> > 
> > sh-4.2# git log --oneline next-20170111..next-20170112 fs/dax.c
> > 0c9a7909dd13 mm, dax: change pmd_fault() to take only vmf parameter
> > f8dbc198d4ea mm, dax: make pmd_fault() and friends be the same as fault()  
> 
> 0112 tree with above 2 commits reverted pass the tests.

-- 
Cheers,
Stephen Rothwell