Intermittent TIMEOUT in linux WPT tests

[gterzian]

https://community-tc.services.mozilla.com/tasks/U8bhcYXfSjC-LAyssVkcwA/runs/0/logs/https%3A%2F%2Fcommunity-tc.services.mozilla.com%2Fapi%2Fqueue%2Fv1%2Ftask%2FU8bhcYXfSjC-LAyssVkcwA%2Fruns%2F0%2Fartifacts%2Fpublic%2Ffiltered-wpt-errorsummary.log

0 matches
1 unexpected results that are NOT known-intermittents:
  ▶ TIMEOUT [expected OK] /xhr/send-timeout-events.htm
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering

It seems to pass locally on Mac consistently.

[jdm]

We have a new intermittent issue that affects WPT tests on linux that looks like unexpected timeouts. I'm going to repurpose this issue to track that.

[CYBAI]

is #26225 possibly related?

[jdm]

I don't believe so; the new linux timeouts have become much more frequent in the past 1.5 weeks.

[gterzian]

How about we also identify individual tests as they are noted, to make it easier to show up in search by issue, and also perhaps to allow a clearer picture of affected areas to emerge?

I saw this at

  ▶ TIMEOUT [expected OK] /fetch/cross-origin-resource-policy/image-loads.html
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering

[jdm]

Another /fetch/cross-origin-resource-policy/image-loads.html.

[jdm]

  ▶ TIMEOUT [expected OK] /css/css-flexbox/position-absolute-013.html
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering

[jdm]

  ▶ TIMEOUT [expected OK] /css/css-flexbox/position-absolute-013.html
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering

[jdm]

  ▶ TIMEOUT [expected OK] /css/css-flexbox/position-absolute-013.html
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering

Suspicious.

[CYBAI]

Looks like /css/css-flexbox/position-absolute-013.html is going crazy recently 👀

[jdm]

  ▶ TIMEOUT [expected PASS] /css/CSS2/linebox/vertical-align-applies-to-004.xht
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  │ libEGL warning: No hardware driver found, falling back to software rendering
  └ Shutting down the Constellation after generating an output file or exit flag specified

[CYBAI]

  ▶ TIMEOUT [expected FAIL] /css/CSS2/selectors/first-letter-nested-002.xht
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  │ libEGL warning: No hardware driver found, falling back to software rendering
  └ Shutting down the Constellation after generating an output file or exit flag specified

[jdm]

  ▶ TIMEOUT [expected OK] /html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.dedicatedworker.html
  │ 
  │ error: XDG_RUNTIME_DIR not set in the environment.
  └ libEGL warning: No hardware driver found, falling back to software rendering
  ▶ Unexpected subtest result in /html/webappapis/scripting/processing-model-2/unhandled-promise-rejections/promise-rejection-events.dedicatedworker.html:
  │ TIMEOUT [expected FAIL] delayed handling: delaying handling rejected promise created from createImageBitmap will cause both events to fire
  └   → Test timed out