Created attachment 391929 [details] crash log fast/canvas/webgl/canvas-webgl-page-cache.html Description: This test is flaky crashing on Mac. It appears to have a regression point at r256910. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fcanvas%2Fwebgl%2Fcanvas-webgl-page-cache.html&flavor=wk1&limit=50000&platform=mac Crash log attached.
<rdar://problem/59865686>
I have marked this test as crashing while this is investigated. https://trac.webkit.org/changeset/257594/webkit
Seems more likely to be an ANGLE regression, r256784. Jason couldn't reproduce, but it's certainly happening on the bots.
Most likely when a page is retrieved from the back-forward cache it's not reinitializing all of the ANGLE-related data structures. Need to catch this in the debugger.
Removed flaky expectation in https://trac.webkit.org/changeset/260873/webkit since the test has been consistently passing for the past few weeks.