On the basis of the results given in http://webkit-test-results.appspot.com/dashboards/flakiness_dashboard.html#showAllRuns=true&showExpectations=true&revision=165805&tests=svg%2Fdom%2Fsvg-root-lengths.html it should be noted that the test is flaky for EFL port. All recent GTK test are PASS. Both Apple Win 7 (debug and release tests) show all PASS results except for one TIMEOUT result.
Closing this bug because the EFL port has been removed from trunk. If you feel this bug applies to a different upstream WebKit port and was closed in error, please either update the title and reopen the bug, or leave a comment to request this.