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[1.15.x] segfault in IOV GPU recv #9514
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Can UCX_PROTO_ENABLE=y be used as a workaround? |
I guess I could set it in the environment before initializing ucp inside MPICH, but it seems pretty hacky. Is there a better way to control the behavior programmatically? |
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Describe the bug
Segfault when receiving an IOV datatype using GPU device memory.
Steps to Reproduce
Output:
Setup and versions
Linux pmrs-gpu-240-01.cels.anl.gov 3.10.0-957.27.2.el7.x86_64 #1 SMP Mon Jul 29 17:46:05 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Additional information (depending on the issue)
There is no segfault if using
UCX_PROTO_ENABLE=y
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