v3.0.x: pml/cm: check for request comp. before completing bsend. #7059
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Turns out there are edge cases where an MTL's isend method may end up marking a send request complete prior to returning to the CM code. The would end up causing problems in the bsend path since the ompi_request_complete would end up getting invoked a second time on this request. This ended up causing segfaults, etc. in ompi_request_complete . Signed-off-by: Howard Pritchard <howardp@lanl.gov> (cherry picked from commit 3285325)
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@hppritcha This one was missed on the v3.0.x branch. Please review. |
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hppritcha
approved these changes
Oct 9, 2019
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Turns out there are edge cases where an MTL's isend
method may end up marking a send request complete prior
to returning to the CM code. The would end up causing
problems in the bsend path since the ompi_request_complete
would end up getting invoked a second time on this request.
This ended up causing segfaults, etc. in ompi_request_complete .
Signed-off-by: Howard Pritchard howardp@lanl.gov
(cherry picked from commit 3285325)