ports/openmpi
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pml/cm: check for request comp. before completing bsend.

Просмотр исходного кода 
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>
Этот коммит содержится в:
Howard Pritchard 2017-11-25 19:33:27 -07:00
родитель e88767866e
Коммит 3285325884
1 изменённых файлов: 27 добавлений и 24 удалений
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7
ompi/mca/pml/cm/pml_cm_sendreq.h
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@ -10,7 +10,7 @@
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2006 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* Copyright (c) 2015-2017 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
@ -401,9 +401,12 @@ do {
if(OMPI_SUCCESS == ret && \
sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
sendreq->req_send.req_base.req_ompi.req_status.MPI_ERROR = 0; \
if(!REQUEST_COMPLETE(&sendreq->req_send.req_base.req_ompi)) { \
/* request may have already been marked complete by the MTL */ \
ompi_request_complete(&(sendreq)->req_send.req_base.req_ompi, true); \
} \
} \
} \
} while (0)
/*
@ -423,7 +426,7 @@ do {
} \
\
if( !REQUEST_COMPLETE(&sendreq->req_send.req_base.req_ompi)) { \
/* Should only be called for long messages (maybe synchronous) */ \
/* the request may have already been marked complete by the MTL */ \
ompi_request_complete(&(sendreq->req_send.req_base.req_ompi), true); \
} \
sendreq->req_send.req_base.req_pml_complete = true; \