{"id":2458,"date":"2016-05-18T05:26:56","date_gmt":"2016-05-18T09:26:56","guid":{"rendered":"http:\/\/local.brightwhiz\/?p=2458"},"modified":"2016-05-18T05:26:56","modified_gmt":"2016-05-18T09:26:56","slug":"rr-4-2-0-update-released","status":"publish","type":"post","link":"http:\/\/local.brightwhiz\/rr-4-2-0-update-released\/","title":{"rendered":"A new Update of rr 4.2.0 Record and Replay is Out"},"content":{"rendered":"<p>Mozilla has announced the release of rr 4.2.0. The name does not say much but rr is an open source record and replay tool.<\/p>\n<p>Basically, this is a lightweight tool for recording and replaying the execution of applications. Something like what debugging tools do. It measures and sets trees of processes and threads alike.<!--more--><\/p>\n<h2>What&#8217;s new in rr 4.2.0<\/h2>\n<p>First off there are several improvements and bug fixes especially related to Ubuntu 14.04 and 15.10. There is a new mode added to catch hard-to-reproduce bugs called chaos.<\/p>\n<p>Logging can now be turned on dynamically or via an environment variable. Syscall support has now been expanded. Developers can now use kernel ftrace while debugging rr itself.<\/p>\n<p>For these and more you can <a href=\"http:\/\/rr-project.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">find out more about this debugging tool here<\/a> and you can <a href=\"https:\/\/github.com\/mozilla\/rr\" target=\"_blank\" rel=\"noopener noreferrer\">get the source code here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mozilla has announced the release of rr 4.2.0. The name does not say much but rr is an open source record and replay tool. Basically, this is a lightweight tool&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2459,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[184,433,449,471,512,543,544,591],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>rr 4.2.0 Record and Replay Tool now Available<\/title>\n<meta name=\"description\" content=\"rr 4.2.0 update released as the newest bug fix version of the open source lightweight record and replay debugging tool from Mozilla\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/local.brightwhiz\/rr-4-2-0-update-released\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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