Created attachment 299536 [details] Crash log LayoutTest media/modern-media-controls/placard-support/placard-support-pip.html is a flaky crash https://build.webkit.org/results/Apple%20Sierra%20Release%20WK1%20(Tests)/r211036%20(3012)/results.html https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=media/modern-media-controls/placard-support/placard-support-pip.html
<rdar://problem/30144915>
This appears to be limited to Sierra Release WK1. Marked test as flaky in http://trac.webkit.org/projects/webkit/changeset/211056
Committed r211426: <http://trac.webkit.org/changeset/211426>