Re: [BUG BISECT] NFSv4 client fails on Flush Journal to Persistent Storage

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> On Jul 26, 2018, at 4:46 AM, Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
> 
> On 25 July 2018 at 16:31, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
>> 
>> 
>>> On Jul 25, 2018, at 9:27 AM, Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>>> 
>>> On 18 June 2018 at 18:20, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
>>>> 
>>>> The extra serialization appears to have a reproducible performance
>>>> impact on RDMA, which no longer takes the reserve_lock when allocating
>>>> a slot.
>>>> 
>>>> I could put an xprt_alloc_xid call in xprt_alloc_slot, but that would
>>>> only work for socket-based transports. Would it be OK if RDMA had its
>>>> own XID allocation mechanism?
>>> 
>>> Hi,
>>> 
>>> On recent next the issue appeared again. My boards with NFSv4 root
>>> timeout on 80% of boots. This time my NFS server is faster - Pi3 B+
>>> :).
>>> 
>>> Is this know? Should I start long bisect or maybe you can point me to
>>> possible causes?
>> 
>> Hi Krzysztof, I don't know of any recent changes. Bisecting would be
>> a good place to start.
> 
> Hi,
> 
> That was my mistake because of missing part of NFS server
> configuration on new board. I tested again recent releases and current
> linux-next and everything works fine.
> 
> Sorry for the noise.

Thanks for the update.


--
Chuck Lever



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