pml/cm: check for request comp. before completing bsend. #6862
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
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 <[email protected]> (cherry picked from commit open-mpi/ompi@3285325)
|
Refs #6860 |
hppritcha
approved these changes
Aug 10, 2019
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
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 [email protected]
(cherry picked from commit 3285325)