{"action":"created","issue":{"url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/16","labels_url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/16/labels{/name}","comments_url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/16/comments","events_url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/16/events","html_url":"https://github.com/IntelLabs/ParallelAccelerator.jl/issues/16","id":114933581,"number":16,"title":"Intermittent segfault in opt-flow","user":{"login":"lkuper","id":535218,"avatar_url":"https://avatars.githubusercontent.com/u/535218?v=3","gravatar_id":"","url":"https://api.github.com/users/lkuper","html_url":"https://github.com/lkuper","followers_url":"https://api.github.com/users/lkuper/followers","following_url":"https://api.github.com/users/lkuper/following{/other_user}","gists_url":"https://api.github.com/users/lkuper/gists{/gist_id}","starred_url":"https://api.github.com/users/lkuper/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lkuper/subscriptions","organizations_url":"https://api.github.com/users/lkuper/orgs","repos_url":"https://api.github.com/users/lkuper/repos","events_url":"https://api.github.com/users/lkuper/events{/privacy}","received_events_url":"https://api.github.com/users/lkuper/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-11-03T23:22:34Z","updated_at":"2015-11-05T19:44:17Z","closed_at":null,"body":"I'm intermittently seeing this error:\r\n\r\n```\r\njulia> include(\"examples/opt-flow/opt-flow.jl\")\r\nnframes = 2\r\nfilenames = UTF8String[\"small_001.dat\",\"small_002.dat\"]\r\nchecksums = Float32[80751.555f0,80818.22f0]\r\nImage size: 584x388\r\nSELFPRIMED 26.040181867\r\n\r\nsignal (11): Segmentation fault\r\nwriteFlo at /home/lkuper/.julia/v0.4/ParallelAccelerator/examples/opt-flow/image.jl:132\r\nmain at /home/lkuper/.julia/v0.4/ParallelAccelerator/examples/opt-flow/opt-flow.jl:223\r\njlcall_main_21594 at  (unknown line)\r\njl_apply_generic at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\nunknown function (ip: 0x7fd479744293)\r\nunknown function (ip: 0x7fd4797436d1)\r\nunknown function (ip: 0x7fd479758758)\r\nunknown function (ip: 0x7fd479759449)\r\njl_load at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\ninclude at ./boot.jl:261\r\njl_apply_generic at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\ninclude_from_node1 at ./loading.jl:304\r\njl_apply_generic at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\nunknown function (ip: 0x7fd479744293)\r\nunknown function (ip: 0x7fd4797436d1)\r\nunknown function (ip: 0x7fd479758758)\r\njl_toplevel_eval_in at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\neval_user_input at REPL.jl:62\r\njlcall_eval_user_input_21252 at  (unknown line)\r\njl_apply_generic at /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so (unknown line)\r\nanonymous at REPL.jl:92\r\nunknown function (ip: 0x7fd47974ae18)\r\nunknown function (ip: (nil))\r\nSegmentation fault (core dumped)\r\n```\r\n\r\nLine 132 of opt-flow/image.jl is [a call to Base.write()](https://github.com/IntelLabs/ParallelAccelerator.jl/blob/49c4b9bd07b1a7f890d4ac79f6c14de273e370d1/examples/opt-flow/image.jl#L132).  This is against Julia 0.4.0 release on Ubuntu.  I see memory usage increase while I'm running but I don't run out of memory before it crashes."},"comment":{"url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/comments/154169571","html_url":"https://github.com/IntelLabs/ParallelAccelerator.jl/issues/16#issuecomment-154169571","issue_url":"https://api.github.com/repos/IntelLabs/ParallelAccelerator.jl/issues/16","id":154169571,"user":{"login":"lkuper","id":535218,"avatar_url":"https://avatars.githubusercontent.com/u/535218?v=3","gravatar_id":"","url":"https://api.github.com/users/lkuper","html_url":"https://github.com/lkuper","followers_url":"https://api.github.com/users/lkuper/followers","following_url":"https://api.github.com/users/lkuper/following{/other_user}","gists_url":"https://api.github.com/users/lkuper/gists{/gist_id}","starred_url":"https://api.github.com/users/lkuper/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lkuper/subscriptions","organizations_url":"https://api.github.com/users/lkuper/orgs","repos_url":"https://api.github.com/users/lkuper/repos","events_url":"https://api.github.com/users/lkuper/events{/privacy}","received_events_url":"https://api.github.com/users/lkuper/received_events","type":"User","site_admin":false},"created_at":"2015-11-05T19:44:17Z","updated_at":"2015-11-05T19:44:17Z","body":"Nothing new to report, just noting that this is still happening and it worries me. I'll try to investigate later. https://travis-ci.org/IntelLabs/ParallelAccelerator.jl/jobs/89505881#L287"}}