On Tue, 2006-06-13 at 14:36 -0700, Sean Hefty wrote: > >> Er...no. It will lose this event. Depending on the event...the carnage > >> varies. We'll take a look at this. > >> > > > >This behavior is consistent with the Infiniband CM (see > >drivers/infiniband/core/cm.c function cm_recv_handler()). But I think > >we should at least log an error because a lost event will usually stall > >the rdma connection. > > I believe that there's a difference here. For the Infiniband CM, an > allocation > error behaves the same as if the received MAD were lost or dropped. Since > MADs > are unreliable anyway, it's not so much that an IB CM event gets lost, as it > doesn't ever occur. A remote CM should retry the send, which hopefully allows > the connection to make forward progress. >
hmm. Ok. I see. I misunderstood the code in cm_recv_handler(). Tom and I have been talking about what we can do to not drop the event. Stay tuned. Steve. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
