(In reply to Tahia K from comment #3) > Hi Boris, the test failure was seen during this treeherder run, under test-linux1804-64/opt-mochitest-plain-fis-xorig-e10s-5: https://treeherder.mozilla.org/#/jobs?repo=try&revision=ec97fc16ca8f622267f8d9137fb6d54215726dbb&selectedTaskRun=OnCPwyqTRxe5JAfAFac83g.0 > > I'm on linux and I actually can't reproduce the failure locally either. This may more appropriate as an intermittent failure? I re-run 4 more times for this test by the same treeherder run, and yes I think this is an intermittent failure. test_transitions_replacement_on_busy_frame.html needs the support of the OMTA (off main thread animation). Perhaps there are something wrong in OMTA. BTW, it seems test_animation_omta.html is failed in [XOrigin sheet](https://docs.google.com/spreadsheets/d/16G5AZhHWWow3rBgim4QBHzWXMIIJiky2SzXYgDMTTKY/edit#gid=1259287422). Not sure if it is related.
Bug 1654429 Comment 4 Edit History
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(In reply to Tahia K from comment #3) > Hi Boris, the test failure was seen during this treeherder run, under test-linux1804-64/opt-mochitest-plain-fis-xorig-e10s-5: https://treeherder.mozilla.org/#/jobs?repo=try&revision=ec97fc16ca8f622267f8d9137fb6d54215726dbb&selectedTaskRun=OnCPwyqTRxe5JAfAFac83g.0 > > I'm on linux and I actually can't reproduce the failure locally either. This may more appropriate as an intermittent failure? I re-run 4 more times for this test by the same treeherder run (note: 2/5 failure rate), and yes I think this is an intermittent failure. test_transitions_replacement_on_busy_frame.html needs the support of the OMTA (off main thread animation). Perhaps there are something wrong in OMTA. BTW, it seems test_animation_omta.html is failed in [XOrigin sheet](https://docs.google.com/spreadsheets/d/16G5AZhHWWow3rBgim4QBHzWXMIIJiky2SzXYgDMTTKY/edit#gid=1259287422). Not sure if it is related.