From b68cffa20b6d0a69b33f8b9ec49dbd3512c5bf8c Mon Sep 17 00:00:00 2001 From: Martin Kronbichler Date: Wed, 8 Mar 2017 10:36:43 +0100 Subject: [PATCH] Add changelog --- doc/news/changes/minor/20170308MartinKronbichler | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 doc/news/changes/minor/20170308MartinKronbichler diff --git a/doc/news/changes/minor/20170308MartinKronbichler b/doc/news/changes/minor/20170308MartinKronbichler new file mode 100644 index 0000000000..3ddad5327b --- /dev/null +++ b/doc/news/changes/minor/20170308MartinKronbichler @@ -0,0 +1,10 @@ +Changed: The parallel triangulation classes parallel::shared::Triangulation +and parallel::distributed::Triangulation used to duplicate the MPI +communicator given to the constructor, which could lead to access-after-free +problems in Trilinos data structures based on this communicator that stayed +alive longer than the Triangulation. The new implementation simply uses the +MPI communicator provided by the user and thus avoids these problems. It is +the user's responsibility to make sure MPI_Comm_free is only called when all +data structures initialized with it are deleted. +
+(Martin Kronbichler, 2017/03/08) -- 2.39.5