[ofa-general] message is received but sender report error.

[Dotan Barak]

If you are not connecting the QPs using CM, maybe you have a sync problem?
one side (the sender) is in RTS and the other side isn't in RTR
(or a sync problem when closing the connection)

Dotan

Tang, Changqing wrote:
> The timeout is 18 (~1sec), and retry is 7 (max).
>
> The error only occurs 1% of runs, sometimes I run the same hello_world code in a loop, and caught it after 1500 runs. So I don't think it is a cable issue(but I have not checked the port error counter).
>
> --CQ
>
>   
>> -----Original Message-----
>> From: Dotan Barak [mailto:dotanb at dev.mellanox.co.il]
>> Sent: Sunday, October 28, 2007 2:48 AM
>> To: Tang, Changqing
>> Cc: Sean Hefty; Roland Dreier; general at lists.openfabrics.org
>> Subject: Re: [ofa-general] message is received but sender
>> report error.
>>
>> Hi.
>>
>> Maybe you should increase your timeout/retry count for your
>> application?
>> can you check the ports error counters (using perfquery)
>> maybe you have bad cables in your subnet ....
>>
>> Dotan
>>
>> Tang, Changqing wrote:
>>     
>>> This is Verbs layer code, no IB CM is used.
>>>
>>> --CQ
>>>
>>>
>>>       
>>>> -----Original Message-----
>>>> From: Sean Hefty [mailto:sean.hefty at intel.com]
>>>> Sent: Thursday, October 25, 2007 12:38 PM
>>>> To: Tang, Changqing; Roland Dreier
>>>> Cc: general at lists.openfabrics.org
>>>> Subject: RE: [ofa-general] message is received but sender report
>>>> error.
>>>>
>>>>
>>>>         
>>>>> If this is the case, how would we fix the problem ? It's
>>>>>
>>>>>           
>>>> hard for us to
>>>>
>>>>         
>>>>> delay to destroy the QP, because we don't know how long to delay.
>>>>> The other way is to do something from the driver, or firmware.
>>>>>
>>>>>           
>>>> Do you disconnect the QPs using the IB CM?
>>>>
>>>> - Sean
>>>>
>>>>
>>>>         
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>>>       
>>     
>
>