[openib-general] [PATCH] RE: regression in ofed 1.2

[Steve Wise]

On Wed, 2007-01-31 at 13:55 -0800, Sean Hefty wrote:
> Steve Wise wrote:
> > Should this be a problem for OFED 1.2?  I would think the ABI for all
> > backports should be the same, so it wouldn't be a problem.  Is this
> > true?  I'm assuming all backported UCMA modules would have the same
> > ABI.  
> 
> This is a problem for anyone that tries to use a newer version of the librdamcm 
> (like an OFED 1.2 version) with an older kernel (e.g. 2.6.20).  As you pointed 
> out, the issue is that the kernel rdma_cm crashes if rdma_init_qp_attr() is 
> called before the user calls rdma_connect().  The problem affects both IB and 
> iWarp.  The latest changes to the librdmacm exposed this bug, but the latest 
> kernel multicast code also fixed it.
> 

Fixed it for IB maybe, but not for iWarp, right?

> As far as I know, only ABI 3 has been released anywhere.  ABI 4 is only 
> available from my git tree.  This problem will occur on any code based on ABI 3 
> or older code snapshots of ABI 4.
> 
> Hopefully this makes sense.

So OFED 1.2 will be ABI 3, right?

Sorry if I'm being dense...