{"action":"closed","issue":{"url":"https://api.github.com/repos/google/autofdo/issues/50","repository_url":"https://api.github.com/repos/google/autofdo","labels_url":"https://api.github.com/repos/google/autofdo/issues/50/labels{/name}","comments_url":"https://api.github.com/repos/google/autofdo/issues/50/comments","events_url":"https://api.github.com/repos/google/autofdo/issues/50/events","html_url":"https://github.com/google/autofdo/issues/50","id":247156856,"number":50,"title":"sample_merger: Unable to map MMAP2 event!","user":{"login":"marksantaniello","id":8750931,"avatar_url":"https://avatars1.githubusercontent.com/u/8750931?v=4","gravatar_id":"","url":"https://api.github.com/users/marksantaniello","html_url":"https://github.com/marksantaniello","followers_url":"https://api.github.com/users/marksantaniello/followers","following_url":"https://api.github.com/users/marksantaniello/following{/other_user}","gists_url":"https://api.github.com/users/marksantaniello/gists{/gist_id}","starred_url":"https://api.github.com/users/marksantaniello/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marksantaniello/subscriptions","organizations_url":"https://api.github.com/users/marksantaniello/orgs","repos_url":"https://api.github.com/users/marksantaniello/repos","events_url":"https://api.github.com/users/marksantaniello/events{/privacy}","received_events_url":"https://api.github.com/users/marksantaniello/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2017-08-01T18:17:37Z","updated_at":"2018-04-16T01:09:10Z","closed_at":"2018-04-16T01:09:10Z","author_association":"CONTRIBUTOR","body":"I sometimes see the following problem with sample_merger.  Often I can just take a new perf collection and this will go away.  I will try to get a small repro for this. \r\n\r\n```\r\nE0801 10:19:00.549764 1907491 address_mapper.cc:148] Could not find space to map addr=7fd94e205000 with size 206000\r\nF0801 10:19:00.550119 1907491 perf_parser.cc:151] Check failed: MapMmapEvent(&event.mmap2, i) Unable to map MMAP2 event!\r\n\r\n*** Check failure stack trace: ***\r\n    @           0x452f55  google::LogMessage::Flush()\r\n    @           0x4537c1  google::LogMessageFatal::~LogMessageFatal()\r\n    @           0x44c0a0  quipper::PerfParser::ProcessEvents()\r\n    @           0x44c713  quipper::PerfParser::ParseRawEvents()\r\n    @           0x42726a  autofdo::PerfDataSampleReader::Append()\r\n    @           0x4269b4  autofdo::SampleReader::ReadAndSetTotalCount()\r\n    @           0x41c8fc  autofdo::ProfileCreator::ReadSample()\r\n    @           0x41d055  autofdo::MergeSample()\r\n    @           0x408b67  main\r\n    @     0x7f2d20e6a0f6  __libc_start_main\r\n    @           0x409e9d  (unknown)\r\n    @              (nil)  (unknown)\r\n```"}}
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