Jeff Squyres wrote:
On Feb 5, 2010, at 4:14 PM, Jason Gunthorpe wrote:
Well, I think you are right. This kind of change seems appropriate to
me for mainline, but OFED/RHEL should carry a responsibility to manage
an identified incompatibility, either patch their kernel, patch their
OMPI, or publish an errata. That is the role of a distribution.
RHEL has said, multiple times, that they rely on OpenFabrics to do the Right
Thing. They don't do a lot of testing, validating, etc.
Sounds like this is taken care for now anyhow, Sean's patch to remove
it for iwarp since it doesn't work today with any iwarp drivers does
obscure the problem.. But it does seem like rdma_cm mode for IB
networks will still be broken in OMPI with the new kernels.
Correct.
So why not back off putting this in the kernel that's coming out now now now?
Why not put it in *next* kernel? (or even better, the one after that)
Is there a rush / need to have this in *now*?
There is still some inconsistency here. Sean, you claimed binds to
127.0.0.1 succeed in ofed-1.4 for IB devices. If so, then folks running
IB/openmpi/rdmacm should be seeing issues. We need to dig a little more...
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