[openib-general] RFC fix for userspace rdma cm crashes

[Steve Wise]

On Thu, 2007-01-04 at 14:13 -0800, Sean Hefty wrote:
> > Does this affect kernel rdma cm users too in some way?  If not, then
> > perhaps the place to fix it is in userspace.
> 
> This doesn't affect the kernel rdma_cm.  The fix can either go into the rdma_ucm 
> (not rdma_cm), or librdmacm, either of which limit the impact to userspace 
> clients only.
> 
> Here's one issue with putting the fix in the librdmacm: there's no guarantee 
> that a multi-threaded client will process the event for a new connection before 
> the reject.  This makes me lean toward implementing the fix in the kernel, where 
> the events are serialized.

That sounds reasonable.