[rds-devel] FW: RDS -- RDMA out of order

[Tang, Changqing]

One more question. Process A sends a RDS_RDMA_MAP control message with RDS_RDMA_USE_ONCE flags, this message pins the buffer, and sends the cookie to destination process B.  Then the IB connection between the nodes is broken because of other reason, when RDS takes the connection down, what does RDS do with the pin MR made by process A?  does process A need to call setsockopt() to free the MR ? after process A clears process B from its communication, A continues to its job.

--CQ

-----Original Message-----
From: Andy Grover [mailto:andy.grover at oracle.com]
Sent: Wednesday, May 05, 2010 8:44 PM
To: Tang, Changqing
Cc: RDS Devel
Subject: Re: [rds-devel] FW: RDS -- RDMA out of order

On 05/05/2010 05:38 AM, Tang, Changqing wrote:
> Andy, Normally I see completion notification with remote error, then
> a lot of dropped notifications. But sometimes during normal run, I
> see a couple dropped notifications only. Do You have explanation why
> there is only dropped notification without a leading error
> notification ?

What messages in dmesg are you seeing along with both cases?

Regards -- Andy