{"action":"created","issue":{"url":"https://api.github.com/repos/open-mpi/ompi/issues/5083","repository_url":"https://api.github.com/repos/open-mpi/ompi","labels_url":"https://api.github.com/repos/open-mpi/ompi/issues/5083/labels{/name}","comments_url":"https://api.github.com/repos/open-mpi/ompi/issues/5083/comments","events_url":"https://api.github.com/repos/open-mpi/ompi/issues/5083/events","html_url":"https://github.com/open-mpi/ompi/issues/5083","id":315963892,"number":5083,"title":"UCX SEGV in 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managers:\r\n* Brian Barrett, Amazon Web Services.\r\n\r\nv3.1.0 is the fall 2017 release.","creator":{"login":"hppritcha","id":7818666,"avatar_url":"https://avatars1.githubusercontent.com/u/7818666?v=4","gravatar_id":"","url":"https://api.github.com/users/hppritcha","html_url":"https://github.com/hppritcha","followers_url":"https://api.github.com/users/hppritcha/followers","following_url":"https://api.github.com/users/hppritcha/following{/other_user}","gists_url":"https://api.github.com/users/hppritcha/gists{/gist_id}","starred_url":"https://api.github.com/users/hppritcha/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hppritcha/subscriptions","organizations_url":"https://api.github.com/users/hppritcha/orgs","repos_url":"https://api.github.com/users/hppritcha/repos","events_url":"https://api.github.com/users/hppritcha/events{/privacy}","received_events_url":"https://api.github.com/users/hppritcha/received_events","type":"User","site_admin":false},"open_issues":1,"closed_issues":121,"state":"open","created_at":"2017-03-07T17:30:57Z","updated_at":"2018-05-03T01:32:23Z","due_on":"2018-01-31T08:00:00Z","closed_at":null},"comments":9,"created_at":"2018-04-19T17:07:11Z","updated_at":"2018-05-03T01:34:07Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"@xinzhao3 @jladd-mlnx\r\nmany IBM tests on v3.1.x and on master have been failing for a number of weeks with a runtime segv due to the OSC UCX component.\r\n\r\nI believe this should be easy to reproduce, though I'm not sure where the argument to the 'flavor' is coming from.\r\n\r\nI think we should either block v3.1.x or disable the ucx osc component for the v3.1.x until we figure this out, due to how easy it is to his this issue.\r\n\r\n```\r\naint: osc_ucx_component.c:246: int mem_map(void **, size_t, ucp_mem_h *, ompi_osc_ucx_module_t *,\r\nint): Assertion `flavor == 2 || flavor == 1' failed.\r\n[c656f6n05:122836] *** Process received signal ***\r\n[c656f6n05:122836] Signal: Aborted (6)\r\n[c656f6n05:122836] Signal code:  (-6)\r\n[c656f6n05:122836] [ 0] [0x3fff9fcd0478]\r\n[c656f6n05:122836] [ 1] aint: osc_ucx_component.c:246: int mem_map(void **, size_t, ucp_mem_h *,\r\nompi_osc_ucx_module_t *, int): Assertion `flavor == 2 || flavor == 1' failed.\r\n[c656f6n05:122835] *** Process received signal ***\r\n[c656f6n05:122835] Signal: Aborted (6)\r\n[c656f6n05:122835] Signal code:  (-6)\r\n[c656f6n05:122835] [ 0] [0x3fffa46f0478]\r\n[c656f6n05:122835] [ 1] /lib64/libc.so.6(abort+0x280)[0x3fff9f530d70]\r\n[c656f6n05:122836] [ 2] /lib64/libc.so.6(abort+0x280)[0x3fffa3f50d70]\r\n[c656f6n05:122835] [ 2] /lib64/libc.so.6(+0x348a4)[0x3fff9f5248a4]\r\n[c656f6n05:122836] [ 3] /lib64/libc.so.6(+0x348a4)[0x3fffa3f448a4]\r\n[c656f6n05:122835] [ 3] /lib64/libc.so.6(__assert_fail+0x64)[0x3fff9f524994]\r\n[c656f6n05:122836] [ 4] /lib64/libc.so.6(__assert_fail+0x64)[0x3fffa3f44994\r\n```"},"comment":{"url":"https://api.github.com/repos/open-mpi/ompi/issues/comments/386169799","html_url":"https://github.com/open-mpi/ompi/issues/5083#issuecomment-386169799","issue_url":"https://api.github.com/repos/open-mpi/ompi/issues/5083","id":386169799,"user":{"login":"bwbarrett","id":15623965,"avatar_url":"https://avatars1.githubusercontent.com/u/15623965?v=4","gravatar_id":"","url":"https://api.github.com/users/bwbarrett","html_url":"https://github.com/bwbarrett","followers_url":"https://api.github.com/users/bwbarrett/followers","following_url":"https://api.github.com/users/bwbarrett/following{/other_user}","gists_url":"https://api.github.com/users/bwbarrett/gists{/gist_id}","starred_url":"https://api.github.com/users/bwbarrett/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bwbarrett/subscriptions","organizations_url":"https://api.github.com/users/bwbarrett/orgs","repos_url":"https://api.github.com/users/bwbarrett/repos","events_url":"https://api.github.com/users/bwbarrett/events{/privacy}","received_events_url":"https://api.github.com/users/bwbarrett/received_events","type":"User","site_admin":false},"created_at":"2018-05-03T01:34:07Z","updated_at":"2018-05-03T01:34:07Z","author_association":"OWNER","body":"removed blocker label; it appears we've minimized the damage on this one with https://github.com/open-mpi/ompi/pull/5135 and https://github.com/open-mpi/ompi/pull/5139, but not completely eliminated it.  So leaving the ticket open until we run the problem to ground."}}
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