{"action":"created","issue":{"url":"https://api.github.com/repos/mapsforge/vtm/issues/139","repository_url":"https://api.github.com/repos/mapsforge/vtm","labels_url":"https://api.github.com/repos/mapsforge/vtm/issues/139/labels{/name}","comments_url":"https://api.github.com/repos/mapsforge/vtm/issues/139/comments","events_url":"https://api.github.com/repos/mapsforge/vtm/issues/139/events","html_url":"https://github.com/mapsforge/vtm/issues/139","id":171663080,"number":139,"title":"Intel Graphics crash","user":{"login":"devemux86","id":3484020,"avatar_url":"https://avatars.githubusercontent.com/u/3484020?v=3","gravatar_id":"","url":"https://api.github.com/users/devemux86","html_url":"https://github.com/devemux86","followers_url":"https://api.github.com/users/devemux86/followers","following_url":"https://api.github.com/users/devemux86/following{/other_user}","gists_url":"https://api.github.com/users/devemux86/gists{/gist_id}","starred_url":"https://api.github.com/users/devemux86/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/devemux86/subscriptions","organizations_url":"https://api.github.com/users/devemux86/orgs","repos_url":"https://api.github.com/users/devemux86/repos","events_url":"https://api.github.com/users/devemux86/events{/privacy}","received_events_url":"https://api.github.com/users/devemux86/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/mapsforge/vtm/labels/bug","name":"bug","color":"ee0701"}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/mapsforge/vtm/milestones/1","html_url":"https://github.com/mapsforge/vtm/milestones/0.6.0","labels_url":"https://api.github.com/repos/mapsforge/vtm/milestones/1/labels","id":1831770,"number":1,"title":"0.6.0","description":"","creator":{"login":"devemux86","id":3484020,"avatar_url":"https://avatars.githubusercontent.com/u/3484020?v=3","gravatar_id":"","url":"https://api.github.com/users/devemux86","html_url":"https://github.com/devemux86","followers_url":"https://api.github.com/users/devemux86/followers","following_url":"https://api.github.com/users/devemux86/following{/other_user}","gists_url":"https://api.github.com/users/devemux86/gists{/gist_id}","starred_url":"https://api.github.com/users/devemux86/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/devemux86/subscriptions","organizations_url":"https://api.github.com/users/devemux86/orgs","repos_url":"https://api.github.com/users/devemux86/repos","events_url":"https://api.github.com/users/devemux86/events{/privacy}","received_events_url":"https://api.github.com/users/devemux86/received_events","type":"User","site_admin":false},"open_issues":1,"closed_issues":98,"state":"open","created_at":"2016-06-16T09:51:45Z","updated_at":"2016-08-19T08:41:49Z","due_on":null,"closed_at":null},"comments":10,"created_at":"2016-08-17T13:53:14Z","updated_at":"2016-08-19T09:40:54Z","closed_at":"2016-08-19T08:18:21Z","body":"I updated recently some machines with Ubuntu from 14.04 to 16.04.\r\nVTM now does not work at all on both desktop and on Android emulator with Intel graphics.\r\nPreviously it worked fine. The cpu / graphics tested are `Sandy Bridge` and `Haswell`.\r\n\r\nOn desktop the application freezes the pc for a while and then crashes with the following:\r\n`intel_do_flush_locked failed: Input/output error`\r\nOn Android the same behavior, at the end the whole emulator crashes.\r\n\r\nI tried the various samples we have in repository (even with newer `Mesa` driver).\r\nThe simple ones like the Bezier work, but the complex ones like the map do not.\r\n\r\nNote that OpenGL at machines works fine, also on Android emulator.\r\nIt seems something in our implementation / shaders causes now all the mess.\r\n\r\n@hjanetzek any hints where to start looking?"},"comment":{"url":"https://api.github.com/repos/mapsforge/vtm/issues/comments/240974557","html_url":"https://github.com/mapsforge/vtm/issues/139#issuecomment-240974557","issue_url":"https://api.github.com/repos/mapsforge/vtm/issues/139","id":240974557,"user":{"login":"hjanetzek","id":1747,"avatar_url":"https://avatars.githubusercontent.com/u/1747?v=3","gravatar_id":"","url":"https://api.github.com/users/hjanetzek","html_url":"https://github.com/hjanetzek","followers_url":"https://api.github.com/users/hjanetzek/followers","following_url":"https://api.github.com/users/hjanetzek/following{/other_user}","gists_url":"https://api.github.com/users/hjanetzek/gists{/gist_id}","starred_url":"https://api.github.com/users/hjanetzek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hjanetzek/subscriptions","organizations_url":"https://api.github.com/users/hjanetzek/orgs","repos_url":"https://api.github.com/users/hjanetzek/repos","events_url":"https://api.github.com/users/hjanetzek/events{/privacy}","received_events_url":"https://api.github.com/users/hjanetzek/received_events","type":"User","site_admin":false},"created_at":"2016-08-19T09:40:54Z","updated_at":"2016-08-19T09:40:54Z","body":"I could rather imagine that the modulus evaluate to -0.0 (https://www.opengl.org/sdk/docs/man/html/mod.xhtml) which is then considered != 0.0. Just curious, could you try:\r\n```if (mod(vertex.x, 2.0) == 0.0 || mod(vertex.x, 2.0) == -0.0)``` ?\r\n\r\n "}}
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