{"action":"opened","issue":{"url":"https://api.github.com/repos/mozilla/rr/issues/1767","repository_url":"https://api.github.com/repos/mozilla/rr","labels_url":"https://api.github.com/repos/mozilla/rr/issues/1767/labels{/name}","comments_url":"https://api.github.com/repos/mozilla/rr/issues/1767/comments","events_url":"https://api.github.com/repos/mozilla/rr/issues/1767/events","html_url":"https://github.com/mozilla/rr/issues/1767","id":169907570,"number":1767,"title":"assertion in handle_desched_event()","user":{"login":"skochinsky","id":9051055,"avatar_url":"https://avatars.githubusercontent.com/u/9051055?v=3","gravatar_id":"","url":"https://api.github.com/users/skochinsky","html_url":"https://github.com/skochinsky","followers_url":"https://api.github.com/users/skochinsky/followers","following_url":"https://api.github.com/users/skochinsky/following{/other_user}","gists_url":"https://api.github.com/users/skochinsky/gists{/gist_id}","starred_url":"https://api.github.com/users/skochinsky/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/skochinsky/subscriptions","organizations_url":"https://api.github.com/users/skochinsky/orgs","repos_url":"https://api.github.com/users/skochinsky/repos","events_url":"https://api.github.com/users/skochinsky/events{/privacy}","received_events_url":"https://api.github.com/users/skochinsky/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-08-08T12:07:35Z","updated_at":"2016-08-08T12:07:35Z","closed_at":null,"body":"\r\nWhile recording a program I sometimes hit this assert:\r\n\r\n```\r\n[FATAL /home/igor/rr/rr/src/record_signal.cc:321:handle_desched_event() errno: SUCCESS] \r\n (task 18704 (rec:18704) at time 588922)\r\n -> Assertion `sig' failed to hold. expected stop-signal, got 0x80057f (GROUP-STOP-SIGTRAP)\r\nLaunch gdb with \r\n  gdb '-l' '-1' '-ex' 'target extended-remote :18704' <binary-path>\r\n```\r\n\r\nAfter attaching gdb as directed, I get only this:\r\n```\r\n(gdb) bt\r\n#0  0x7000000e in _start () from /lib/ld-linux.so.2\r\n\r\n```\r\n*once* I've hit it by pressing Ctrl-Z to detach `rr` then `bg` to move it to background, but I was not able to reproduce it that way again. The last time it occurred while `rr` was running normally in foreground.\r\n\r\nHere are the few last events from `rr dump`: https://gist.github.com/skochinsky/6cd55c768f99e08d45b11041940d9562"}}
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