Re: linux-next 0112 tree breaks fs DAX

[Dave Jiang]

On 01/16/2017 03:45 AM, Stephen Rothwell wrote:
> Hi Xiong,
> 
> Just cc'ing Andrew.
> 
> On Mon, 16 Jan 2017 17:29:16 +0800 Xiong Zhou <xzhou@xxxxxxxxxx> 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.
> 

Thanks. I will debug.