r189373 <http://trac.webkit.org/r189373> added 4 new tests. This tests timeout on the GTK port since they were added: Regressions: Unexpected timeouts (4) inspector/console/addInspectedNode.html [ Timeout ] inspector/console/clearMessages.html [ Timeout ] inspector/console/messageRepeatCountUpdated.html [ Timeout ] inspector/console/messagesCleared.html [ Timeout ]
bug 148569 may be related
Indeed, all the inspector tests timeout on the GTK port :\ *** This bug has been marked as a duplicate of bug 148569 ***