Tom Talpey wrote:
quoted text
> At 06:56 AM 4/27/2009, Celine Bourde wrote:
>   
>> Thanks for the explanation.
>> Let me know if you have additional information.
>>
>> We have a contact at Mellanox. I will contact him.
>>
>> Thanks,
>>
>> Céline.
>>
>> Vu Pham wrote:
>>     
>>> Celine,
>>>
>>> I'm seeing mlx4 in the log so it is connectX.
>>>
>>> nfsrdma does not work with any official connectX' fw release 2.6.0 
>>> because of fast registering work request problems between nfsrdma and 
>>> the firmware.
>>>       
>
> There is a very simple workaround if you don't have the latest mlx4 firmware.
>
> Just set the client to use the all-physical memory registration mode. This will
> avoid making unsupported reregistration requests, which the firmware advertised.
>
> Before mounting, enter (as root)
>
> 	sysctl -w sunrpc.rdma_memreg_strategy = 6
>
> The client should work properly after this.
>
> If you do have access to the fixed firmware, I recommend using the default
> setting (5) as it provides greater safety on the client.
>
> Tom.
>
>   


This work around only work for client side. On the server side we don't 
have option to switch the memory option

-vu
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