{"action":"created","issue":{"url":"https://api.github.com/repos/idaholab/moose/issues/4966","labels_url":"https://api.github.com/repos/idaholab/moose/issues/4966/labels{/name}","comments_url":"https://api.github.com/repos/idaholab/moose/issues/4966/comments","events_url":"https://api.github.com/repos/idaholab/moose/issues/4966/events","html_url":"https://github.com/idaholab/moose/issues/4966","id":69961946,"number":4966,"title":"Simple diffusion with QUAD8 and one uniform refinement fails after updating libmesh to 4775923","user":{"login":"jwpeterson","id":1775907,"avatar_url":"https://avatars.githubusercontent.com/u/1775907?v=3","gravatar_id":"","url":"https://api.github.com/users/jwpeterson","html_url":"https://github.com/jwpeterson","followers_url":"https://api.github.com/users/jwpeterson/followers","following_url":"https://api.github.com/users/jwpeterson/following{/other_user}","gists_url":"https://api.github.com/users/jwpeterson/gists{/gist_id}","starred_url":"https://api.github.com/users/jwpeterson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jwpeterson/subscriptions","organizations_url":"https://api.github.com/users/jwpeterson/orgs","repos_url":"https://api.github.com/users/jwpeterson/repos","events_url":"https://api.github.com/users/jwpeterson/events{/privacy}","received_events_url":"https://api.github.com/users/jwpeterson/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/idaholab/moose/labels/C:%20libMesh","name":"C: libMesh","color":"0052cc"},{"url":"https://api.github.com/repos/idaholab/moose/labels/P:%20normal","name":"P: normal","color":"ededed"},{"url":"https://api.github.com/repos/idaholab/moose/labels/T:%20defect","name":"T: defect","color":"e11d21"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":14,"created_at":"2015-04-21T21:53:26Z","updated_at":"2015-04-22T16:46:39Z","closed_at":null,"body":"To replicate:  add\r\n```\r\nelem_type = QUAD8\r\nuniform_refine = 1\r\n```\r\nto the [Mesh] block, and\r\n```\r\norder = SECOND\r\nfamily = LAGRANGE\r\n```\r\nto the u-variable section of `test/tests/kernels/simple_diffusion/simple_diffusion.i`.  What's really weird to me about this error is that we call a function on a `RemoteElem` on a serial program running in serial!  @roystgnr it looks like we are down in `System::init_data()`, would this have anything to do with the refactored system projection code?  The same test works fine either *without* uniform refinement or using `QUAD9` elements.\r\n\r\n```\r\nStack frames: 19\r\n0: 0   libmesh_opt.0.dylib                 0x0000000108028965 libMesh::print_trace(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) + 1237\r\n1: 1   libmesh_opt.0.dylib                 0x0000000108026f39 libMesh::MacroFunctions::report_error(char const*, int, char const*, char const*) + 329\r\n2: 2   libmesh_opt.0.dylib                 0x00000001081ea7d6 libMesh::RemoteElem::n_nodes() const + 38\r\n3: 3   libmesh_opt.0.dylib                 0x0000000107fdc70b libMesh::DofMap::dof_indices(libMesh::Elem const*, std::__1::vector<unsigned int, std::__1::allocator<unsigned int> >&) const + 651\r\n4: 4   libmesh_opt.0.dylib                 0x0000000107fdab98 libMesh::DofMap::add_neighbors_to_send_list(libMesh::MeshBase&) + 2424\r\n5: 5   libmesh_opt.0.dylib                 0x0000000107fd903b libMesh::DofMap::distribute_dofs(libMesh::MeshBase&) + 1787\r\n6: 6   libmesh_opt.0.dylib                 0x0000000108476655 libMesh::System::init_data() + 149\r\n7: 7   libmesh_opt.0.dylib                 0x0000000108469be5 libMesh::ImplicitSystem::init_data() + 21\r\n8: 8   libmesh_opt.0.dylib                 0x00000001084aa9f3 libMesh::TransientSystem<libMesh::NonlinearImplicitSystem>::init_data() + 19\r\n9: 9   libmesh_opt.0.dylib                 0x0000000108476588 libMesh::System::init() + 40\r\n10: 10  libmesh_opt.0.dylib                 0x000000010844b552 libMesh::EquationSystems::init() + 786\r\n11: 11  libmoose-opt.0.dylib                0x00000001077f2e02 FEProblem::init() + 866\r\n12: 12  libmoose-opt.0.dylib                0x0000000107703789 ActionWarehouse::executeActionsWithAction(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 313\r\n13: 13  libmoose-opt.0.dylib                0x0000000107703602 ActionWarehouse::executeAllActions() + 274\r\n14: 14  libmoose-opt.0.dylib                0x000000010789c062 MooseApp::runInputFile() + 210\r\n15: 15  libmoose-opt.0.dylib                0x000000010789d168 MooseApp::run() + 24\r\n16: 16  moose_test-opt                      0x0000000107432571 main + 113\r\n17: 17  libdyld.dylib                       0x00007fff975805c9 start + 1\r\n18: 18  ???                                 0x0000000000000003 0x0 + 3\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/idaholab/moose/issues/comments/95260714","html_url":"https://github.com/idaholab/moose/issues/4966#issuecomment-95260714","issue_url":"https://api.github.com/repos/idaholab/moose/issues/4966","id":95260714,"user":{"login":"roystgnr","id":2367346,"avatar_url":"https://avatars.githubusercontent.com/u/2367346?v=3","gravatar_id":"","url":"https://api.github.com/users/roystgnr","html_url":"https://github.com/roystgnr","followers_url":"https://api.github.com/users/roystgnr/followers","following_url":"https://api.github.com/users/roystgnr/following{/other_user}","gists_url":"https://api.github.com/users/roystgnr/gists{/gist_id}","starred_url":"https://api.github.com/users/roystgnr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/roystgnr/subscriptions","organizations_url":"https://api.github.com/users/roystgnr/orgs","repos_url":"https://api.github.com/users/roystgnr/repos","events_url":"https://api.github.com/users/roystgnr/events{/privacy}","received_events_url":"https://api.github.com/users/roystgnr/received_events","type":"User","site_admin":false},"created_at":"2015-04-22T16:46:39Z","updated_at":"2015-04-22T16:46:39Z","body":"Oh, hell.  My plan isn't going to be so simple for Hex20 or anything else with a Quad8 side, because in that case the missing-node-in-the-parent-center might instead be any one of several missing-nodes-in-the-parent-sides, and there needs to be some way for the overridden bracketing_nodes() to figure out which."}}