1684419 - Intermittent /webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html | Testing http://web-platform.test:8000/webvtt/rendering/cues-with-video/processing-model/bidi/u0041_first.html == http://web-platform.test:8000/webvtt/rendering/cues-wi

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: rmaries [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=325526726&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/eiAFVEa1R_q5ji6f77t8_w/runs/0/artifacts/public/logs/live_backing.log
Reftest URL: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/eiAFVEa1R_q5ji6f77t8_w/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

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Comment 1

[Intermittent Failures Robot]

2 failures in 525 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2

Platform breakdown:

• linux1804-64-asan: 1
• linux1804-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1684419&startday=2020-12-28&endday=2021-01-03&tree=all

Comment 2

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Could these video caption failures (see also bug 1684743, bug 1684766, bug 1684843) be from bug 1676966?

Comment 3

[Jonathan Kew [:jfkthame]]

(In reply to Sebastian Hengst [:aryx] (needinfo on intermittent or backout) from comment #2)

Could these video caption failures (see also bug 1684743, bug 1684766, bug 1684843) be from bug 1676966?

Offhand it doesn't look all that likely, as they don't seem to involve text that would depend on font fallback. But maybe there's more to them than I can immediately see.

(I guess if the failures are frequent enough, we could try disabling gfx.font_rendering.fallback.async for the directory and see if it makes the problems go away, as that should turn off the behavior change from bug 1676966 that can intermittently affect some tests.)

Comment 4

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Attachment: Bug 1684419 - disable async font fallback for webvtt/rendering/cues-with-video because of intermittentfailures. r=jfkthame

Comment 5

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

The intermittent failures start indeed with bug 1676966.

Comment 9

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/87172b7872a4
disable async font fallback for webvtt/rendering/cues-with-video because of intermittentfailures. r=jfkthame DONTBUILD

Comment 10

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/87172b7872a4

Comment 11

[Intermittent Failures Robot]

2 failures in 2956 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform breakdown:

• linux1804-64-qr: 1
• macosx1014-64-shippable-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1684419&startday=2021-01-04&endday=2021-01-10&tree=all