[ofa-general] IBV_WC_STATUS status set as 135

[Bharath Ramesh]

* Roland Dreier (rdreier at cisco.com) wrote:
>  > I am getting this error every single time when I poll the CQ, with
>  > IBV_WC_STATUS set to 135. The vendor error code is also set to the same
>  > value of 135. I am trying to perform a RDMA Write operation. My WR is
>  > setup as follows.
> 
> I don't see any way that the libmthca code could set wc.status to
> 135.  Are you sure that the poll operation is succeeding?  What is the
> return value from ibv_poll_cq()?

The return value of ibv_poll_cq was always 1.
> 
> Do you have a complete test case that you could post, which I could
> build and run?  It sounds like this is very reproducible, but it's
> hard to debug from just the piece you posted.

I think the problem that was my SRQ buffer was hitting low watermark and
before I could post additional buffers to the SRQ my QP was going into
an error state, a race condition that I had missed.

Thanks,

Bharath
> 
>  - R.
> 

---
Bharath Ramesh       <bramesh at vt.edu>       http://people.cs.vt.edu/~bramesh