{"action":"created","issue":{"url":"https://api.github.com/repos/mozilla/rr/issues/1779","repository_url":"https://api.github.com/repos/mozilla/rr","labels_url":"https://api.github.com/repos/mozilla/rr/issues/1779/labels{/name}","comments_url":"https://api.github.com/repos/mozilla/rr/issues/1779/comments","events_url":"https://api.github.com/repos/mozilla/rr/issues/1779/events","html_url":"https://github.com/mozilla/rr/issues/1779","id":173575665,"number":1779,"title":"Assertion failure in Linux 4.7.2","user":{"login":"yan12125","id":1937689,"avatar_url":"https://avatars.githubusercontent.com/u/1937689?v=3","gravatar_id":"","url":"https://api.github.com/users/yan12125","html_url":"https://github.com/yan12125","followers_url":"https://api.github.com/users/yan12125/followers","following_url":"https://api.github.com/users/yan12125/following{/other_user}","gists_url":"https://api.github.com/users/yan12125/gists{/gist_id}","starred_url":"https://api.github.com/users/yan12125/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yan12125/subscriptions","organizations_url":"https://api.github.com/users/yan12125/orgs","repos_url":"https://api.github.com/users/yan12125/repos","events_url":"https://api.github.com/users/yan12125/events{/privacy}","received_events_url":"https://api.github.com/users/yan12125/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"rocallahan","id":296135,"avatar_url":"https://avatars.githubusercontent.com/u/296135?v=3","gravatar_id":"","url":"https://api.github.com/users/rocallahan","html_url":"https://github.com/rocallahan","followers_url":"https://api.github.com/users/rocallahan/followers","following_url":"https://api.github.com/users/rocallahan/following{/other_user}","gists_url":"https://api.github.com/users/rocallahan/gists{/gist_id}","starred_url":"https://api.github.com/users/rocallahan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rocallahan/subscriptions","organizations_url":"https://api.github.com/users/rocallahan/orgs","repos_url":"https://api.github.com/users/rocallahan/repos","events_url":"https://api.github.com/users/rocallahan/events{/privacy}","received_events_url":"https://api.github.com/users/rocallahan/received_events","type":"User","site_admin":false},"assignees":[{"login":"rocallahan","id":296135,"avatar_url":"https://avatars.githubusercontent.com/u/296135?v=3","gravatar_id":"","url":"https://api.github.com/users/rocallahan","html_url":"https://github.com/rocallahan","followers_url":"https://api.github.com/users/rocallahan/followers","following_url":"https://api.github.com/users/rocallahan/following{/other_user}","gists_url":"https://api.github.com/users/rocallahan/gists{/gist_id}","starred_url":"https://api.github.com/users/rocallahan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rocallahan/subscriptions","organizations_url":"https://api.github.com/users/rocallahan/orgs","repos_url":"https://api.github.com/users/rocallahan/repos","events_url":"https://api.github.com/users/rocallahan/events{/privacy}","received_events_url":"https://api.github.com/users/rocallahan/received_events","type":"User","site_admin":false}],"milestone":null,"comments":6,"created_at":"2016-08-27T03:45:24Z","updated_at":"2016-08-27T04:10:50Z","closed_at":null,"body":"I'm trying rr with mozilla-central. Here's the error I got:\r\n```\r\n$ ./mach run --debugger=rr\r\n0:00.13 /home/yen/tmp/rr/bin/rr /home/yen/tmp/mozilla-central-win/obj-x86_64-pc-linux-gnu/dist/bin/firefox -no-remote -profile /home/yen/tmp/mozilla-central-win/obj-x86_64-pc-linux-gnu/tmp/scratch_user\r\nrr: Saving execution to trace directory `/home/yen/.local/share/rr/firefox-1'.\r\n[FATAL /home/yen/tmp/rr/src/record_syscall.cc:3882:rec_process_syscall_arch() errno: SUCCESS] \r\n (task 10146 (rec:10146) at time 2575)\r\n -> Assertion `t->regs().syscall_result_signed() == -syscall_state.expect_errno' failed to hold. Expected EINVAL for 'madvise' but got result 0 (errno SUCCESS); unknown madvise(8)\r\nLaunch gdb with \r\n  gdb '-l' '-1' '-ex' 'target extended-remote :10146' /home/yen/tmp/mozilla-central-win/obj-x86_64-pc-linux-gnu/dist/bin/firefox\r\n```\r\nI have tried w/o sudo. The error message is the same.\r\n\r\nEnvironment:\r\n* Arch Linux x86_64\r\n* Linux kernel 4.7.2\r\n* GCC 6.1.1 (actually GCC's commit c8454ab1. Arch constantly bumps GCC to the latest commit)"},"comment":{"url":"https://api.github.com/repos/mozilla/rr/issues/comments/242894603","html_url":"https://github.com/mozilla/rr/issues/1779#issuecomment-242894603","issue_url":"https://api.github.com/repos/mozilla/rr/issues/1779","id":242894603,"user":{"login":"rocallahan","id":296135,"avatar_url":"https://avatars.githubusercontent.com/u/296135?v=3","gravatar_id":"","url":"https://api.github.com/users/rocallahan","html_url":"https://github.com/rocallahan","followers_url":"https://api.github.com/users/rocallahan/followers","following_url":"https://api.github.com/users/rocallahan/following{/other_user}","gists_url":"https://api.github.com/users/rocallahan/gists{/gist_id}","starred_url":"https://api.github.com/users/rocallahan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rocallahan/subscriptions","organizations_url":"https://api.github.com/users/rocallahan/orgs","repos_url":"https://api.github.com/users/rocallahan/repos","events_url":"https://api.github.com/users/rocallahan/events{/privacy}","received_events_url":"https://api.github.com/users/rocallahan/received_events","type":"User","site_admin":false},"created_at":"2016-08-27T04:10:50Z","updated_at":"2016-08-27T04:10:50Z","body":"Only if it leaks address space already."}}
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