{"action":"closed","issue":{"url":"https://api.github.com/repos/chregu/hhvm-newrelic-ext/issues/13","labels_url":"https://api.github.com/repos/chregu/hhvm-newrelic-ext/issues/13/labels{/name}","comments_url":"https://api.github.com/repos/chregu/hhvm-newrelic-ext/issues/13/comments","events_url":"https://api.github.com/repos/chregu/hhvm-newrelic-ext/issues/13/events","html_url":"https://github.com/chregu/hhvm-newrelic-ext/issues/13","id":44058652,"number":13,"title":"deadlocks and core dumps while testing with n concurrent requests","user":{"login":"archibaldhaddock","id":6589911,"avatar_url":"https://avatars.githubusercontent.com/u/6589911?v=3","gravatar_id":"","url":"https://api.github.com/users/archibaldhaddock","html_url":"https://github.com/archibaldhaddock","followers_url":"https://api.github.com/users/archibaldhaddock/followers","following_url":"https://api.github.com/users/archibaldhaddock/following{/other_user}","gists_url":"https://api.github.com/users/archibaldhaddock/gists{/gist_id}","starred_url":"https://api.github.com/users/archibaldhaddock/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/archibaldhaddock/subscriptions","organizations_url":"https://api.github.com/users/archibaldhaddock/orgs","repos_url":"https://api.github.com/users/archibaldhaddock/repos","events_url":"https://api.github.com/users/archibaldhaddock/events{/privacy}","received_events_url":"https://api.github.com/users/archibaldhaddock/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2014-09-26T13:03:34Z","updated_at":"2015-01-13T07:45:46Z","closed_at":"2015-01-13T07:45:46Z","body":"Hello,\r\n\r\nWell, everything is in the subject ! ;-) When I use your extension with only one concurrent request, everything works fine. When I try to send 2 concurrent requests ((I use siege --concurrent=2 --reps=5 on every link of my site), the test ends quickly : hhvm comes to a deadlock or crashes. I use a debug version of hhvm, but the call stack shown in the various core dumps won't help me : seg faults happen  in various memory management calls (new(), free, in jmalloc or stdlib).\r\nI have seen fatal error in hhvm's memory control asserts too (debug mode asserts).\r\nHave you had any problems of this kind ?\r\nCould the newrelic extension make thread-unsafe accesses to  hhvm memory management ?\r\n\r\nWhen I comment newrelic conf in the hdf file, everything is ok again.\r\n\r\nThanks for your great work !\r\n\r\n"}}