[openib-general] RFC fix for userspace rdma cm crashes
Steve Wise
swise at opengridcomputing.com
Thu Jan 4 14:59:57 PST 2007
On Thu, 2007-01-04 at 14:42 -0800, Sean Hefty wrote:
> > I'm not as familiar with all the corner cases in IB-specific
> > connection establishment, but if there is no user context
> > is there really a need to forward the event to userspace
> > as long as the reject is not forgotten?
>
> In this specific case, probably not. And that's our current work-around for
> DAPL / Intel MPI, but mainly because it was easy to implement. I just hesitate
> to discard events, but if problem doesn't pertain to iWarp, and only occurs in a
> very specific case for IB, the simple solution may be the best.
>
This can happen in iWARP too I think. Discarding the event and failing
the subsequent rdma_accept() is ok IMO.
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