{"action":"opened","issue":{"url":"https://api.github.com/repos/JuliaLang/julia/issues/10514","labels_url":"https://api.github.com/repos/JuliaLang/julia/issues/10514/labels{/name}","comments_url":"https://api.github.com/repos/JuliaLang/julia/issues/10514/comments","events_url":"https://api.github.com/repos/JuliaLang/julia/issues/10514/events","html_url":"https://github.com/JuliaLang/julia/issues/10514","id":61179713,"number":10514,"title":"Backtrace test failure in OS X 10.10 with LLVM development branch","user":{"login":"samuelpowell","id":6370657,"avatar_url":"https://avatars.githubusercontent.com/u/6370657?v=3","gravatar_id":"","url":"https://api.github.com/users/samuelpowell","html_url":"https://github.com/samuelpowell","followers_url":"https://api.github.com/users/samuelpowell/followers","following_url":"https://api.github.com/users/samuelpowell/following{/other_user}","gists_url":"https://api.github.com/users/samuelpowell/gists{/gist_id}","starred_url":"https://api.github.com/users/samuelpowell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/samuelpowell/subscriptions","organizations_url":"https://api.github.com/users/samuelpowell/orgs","repos_url":"https://api.github.com/users/samuelpowell/repos","events_url":"https://api.github.com/users/samuelpowell/events{/privacy}","received_events_url":"https://api.github.com/users/samuelpowell/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-03-13T18:41:50Z","updated_at":"2015-03-13T18:41:50Z","closed_at":null,"body":"Building master with the Make.user specified by @Keno for https://github.com/Keno/Cxx.jl (which uses the development version of LLVM) causes the following test failure under OS X 10.10 (but not Ubuntu 14.04.2):\r\n\r\n```\r\nexception on 5: ERROR: LoadError: test failed: have_backtrace\r\n in expression: have_backtrace\r\nwhile loading backtrace.jl, in expression starting on line 12\r\n\tFrom worker 2:\t in  15.15 seconds\r\n\tFrom worker 4:\t     * sorting              in 116.84 seconds\r\n\tFrom worker 3:\t     * subarray             in 639.08 seconds\r\nERROR: LoadError: LoadError: test failed: have_backtrace\r\n in expression: have_backtrace\r\nwhile loading backtrace.jl, in expression starting on line 12\r\nwhile loading /Users/samuelpowell/Documents/julia/test/runtests.jl, in expression starting on line 3\r\n\r\n\tFrom worker 5:\t     * backtrace           WARNING: Forcibly interrupting busy workers\r\n```\r\n\r\nExecuting the contents of the test at the julia prompt results in the following output\r\n\r\n```\r\njulia> bt = backtrace()\r\n1-element Array{Ptr{Void},1}:\r\n Ptr{Void} @0x0000000105ab78be\r\n\r\njulia> ccall(:jl_lookup_code_address, Any, (Ptr{Void},), bt)\r\n(symbol(\"???\"),symbol(\"???\"),13241376768,true,13241376768)\r\n```\r\n\r\nwhere the test asserts that the fourth element of the tuple returned from ```ccall``` be ```false```."}}