{"action":"created","issue":{"url":"https://api.github.com/repos/golang/go/issues/9120","labels_url":"https://api.github.com/repos/golang/go/issues/9120/labels{/name}","comments_url":"https://api.github.com/repos/golang/go/issues/9120/comments","events_url":"https://api.github.com/repos/golang/go/issues/9120/events","html_url":"https://github.com/golang/go/issues/9120","id":51289121,"number":9120,"title":"runtime: remove implementation restriction on channel element size","user":{"login":"bradfitz","id":2621,"avatar_url":"https://avatars.githubusercontent.com/u/2621?v=3","gravatar_id":"","url":"https://api.github.com/users/bradfitz","html_url":"https://github.com/bradfitz","followers_url":"https://api.github.com/users/bradfitz/followers","following_url":"https://api.github.com/users/bradfitz/following{/other_user}","gists_url":"https://api.github.com/users/bradfitz/gists{/gist_id}","starred_url":"https://api.github.com/users/bradfitz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bradfitz/subscriptions","organizations_url":"https://api.github.com/users/bradfitz/orgs","repos_url":"https://api.github.com/users/bradfitz/repos","events_url":"https://api.github.com/users/bradfitz/events{/privacy}","received_events_url":"https://api.github.com/users/bradfitz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/golang/go/milestones/6","html_url":"https://github.com/golang/go/milestones/Unplanned","labels_url":"https://api.github.com/repos/golang/go/milestones/6/labels","id":1055141,"number":6,"title":"Unplanned","description":"No plan to fix in any specific release.\r\n","creator":{"login":"rsc","id":104030,"avatar_url":"https://avatars.githubusercontent.com/u/104030?v=3","gravatar_id":"","url":"https://api.github.com/users/rsc","html_url":"https://github.com/rsc","followers_url":"https://api.github.com/users/rsc/followers","following_url":"https://api.github.com/users/rsc/following{/other_user}","gists_url":"https://api.github.com/users/rsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsc/subscriptions","organizations_url":"https://api.github.com/users/rsc/orgs","repos_url":"https://api.github.com/users/rsc/repos","events_url":"https://api.github.com/users/rsc/events{/privacy}","received_events_url":"https://api.github.com/users/rsc/received_events","type":"User","site_admin":false},"open_issues":875,"closed_issues":36,"state":"open","created_at":"2015-04-06T20:47:19Z","updated_at":"2015-06-08T06:07:28Z","due_on":"2099-12-31T05:00:00Z","closed_at":null},"comments":13,"created_at":"2014-11-17T23:30:02Z","updated_at":"2015-06-08T06:07:28Z","closed_at":null,"body":"<pre>It appears that gc and the runtime currently disable channel elements to be over 64kB:\n\n    <a href=\"http://play.golang.org/p/_aVWt-qiud\">http://play.golang.org/p/_aVWt-qiud</a>\n\nBut I see nothing about this (allowed?) implementation restriction in the spec, despite\nthe spec calling out a number of other implementation-allowed restrictions.</pre>"},"comment":{"url":"https://api.github.com/repos/golang/go/issues/comments/109875243","html_url":"https://github.com/golang/go/issues/9120#issuecomment-109875243","issue_url":"https://api.github.com/repos/golang/go/issues/9120","id":109875243,"user":{"login":"rsc","id":104030,"avatar_url":"https://avatars.githubusercontent.com/u/104030?v=3","gravatar_id":"","url":"https://api.github.com/users/rsc","html_url":"https://github.com/rsc","followers_url":"https://api.github.com/users/rsc/followers","following_url":"https://api.github.com/users/rsc/following{/other_user}","gists_url":"https://api.github.com/users/rsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsc/subscriptions","organizations_url":"https://api.github.com/users/rsc/orgs","repos_url":"https://api.github.com/users/rsc/repos","events_url":"https://api.github.com/users/rsc/events{/privacy}","received_events_url":"https://api.github.com/users/rsc/received_events","type":"User","site_admin":false},"created_at":"2015-06-08T06:07:28Z","updated_at":"2015-06-08T06:07:28Z","body":"The 64 kB limit turns out to be central to a fix for a late GC bug in the Go 1.5 release. I'm going to take advantage of this 64 kB limit to fix that bug. We can try to remove the limit (with a different fix) in 1.6."}}