[openib-general] [PATCH] librdmacm/examples/rping.c

[amith rajith mamidala]

Hi,

With the latest rping code (Revision: 8055) I am still able to see this
race condition.

server side:

[@k62-oib examples]$ ./rping -s -vV -C10 -S26 -a 0.0.0.0 -p 9997
server ping data: rdma-ping-0: ABCDEFGHIJKL
server ping data: rdma-ping-1: BCDEFGHIJKLM
server ping data: rdma-ping-2: CDEFGHIJKLMN
server ping data: rdma-ping-3: DEFGHIJKLMNO
server ping data: rdma-ping-4: EFGHIJKLMNOP
server ping data: rdma-ping-5: FGHIJKLMNOPQ
server ping data: rdma-ping-6: GHIJKLMNOPQR
server ping data: rdma-ping-7: HIJKLMNOPQRS
server ping data: rdma-ping-8: IJKLMNOPQRST
server ping data: rdma-ping-9: JKLMNOPQRSTU
server DISCONNECT EVENT...
wait for RDMA_READ_ADV state 9
cq completion failed status 5

Client side:

[@k63-oib examples]$ ./rping -c -vV -C10 -S26 -a 192.168.111.66 -p 9997
ping data: rdma-ping-0: ABCDEFGHIJKL
ping data: rdma-ping-1: BCDEFGHIJKLM
ping data: rdma-ping-2: CDEFGHIJKLMN
ping data: rdma-ping-3: DEFGHIJKLMNO
ping data: rdma-ping-4: EFGHIJKLMNOP
ping data: rdma-ping-5: FGHIJKLMNOPQ
ping data: rdma-ping-6: GHIJKLMNOPQR
ping data: rdma-ping-7: HIJKLMNOPQRS
ping data: rdma-ping-8: IJKLMNOPQRST
ping data: rdma-ping-9: JKLMNOPQRSTU
cq completion failed status 5
client DISCONNECT EVENT...


Thanks,
Amith


On Tue, 13 Jun 2006, Steve Wise wrote:

> Thanks, applied.
>
> iwarp branch: r7964
> trunk: r7966
>
>
> On Tue, 2006-06-13 at 11:24 -0500, Boyd R. Faulkner wrote:
> > This patch resolves a race condition between the receipt of
> > a connection established event and a receive completion from
> > the client.  The server no longer goes to connected state but
> > merely waits for the READ_ADV state to begin its looping.  This
> > keeps the server from going back to CONNECTED from the later
> > states if the connection established event comes in after the
> > receive completion (i.e. the loop starts).
> >
> > Signed-off-by: Boyd Faulkner <faulkner at opengridcomputing.com>
>
>
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