1946901 - Intermittent toolkit/components/translations/tests/browser/browser_about_translations_flip_lexical_shortlist.js | single tracking bug

Status: RESOLVED FIXED

(Firefox :: Translations, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: abutkovits [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=493938526&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/JGaj6pjNSC66wMGWMtqNFg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2025-02-07T22:36:50.849Z] 22:36:50     INFO - TEST-PASS | toolkit/components/translations/tests/browser/browser_about_translations_flip_lexical_shortlist.js | "TEXT TO TRANSLATE. [en to fr]" == "TEXT TO TRANSLATE. [en to fr]" - 
[task 2025-02-07T22:36:50.849Z] 22:36:50     INFO - Flipping "browser.translations.useLexicalShortlist" to false.
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Ensuring re-translation is triggered.
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Waiting for model files to download.
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Resolving 1 mocked downloads for "test-translation-wasm-1"
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Buffered messages logged at 22:36:30
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Resolving 2 mocked downloads for "test-translation-models-0"
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Ensuring text is translated.
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - Buffered messages finished
[task 2025-02-07T22:36:50.850Z] 22:36:50     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/translations/tests/browser/browser_about_translations_flip_lexical_shortlist.js | Uncaught exception in test bound test_about_translations_language_swap - translation from fr to en is complete - timed out after 200 tries.
[task 2025-02-07T22:36:50.851Z] 22:36:50     INFO - Leaving test bound test_about_translations_language_swap
[task 2025-02-07T22:36:50.851Z] 22:36:50     INFO - GECKO(25972) | MEMORY STAT | vsize 3236MB | residentFast 450MB | heapAllocated 235MB
[task 2025-02-07T22:36:50.852Z] 22:36:50     INFO - TEST-OK | toolkit/components/translations/tests/browser/browser_about_translations_flip_lexical_shortlist.js | took 22894ms
[task 2025-02-07T22:36:50.852Z] 22:36:50     INFO - Not taking screenshot here: see the one that was previously logged
[task 2025-02-07T22:36:50.853Z] 22:36:50     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/translations/tests/browser/browser_about_translations_flip_lexical_shortlist.js | Found an unexpected tab at the end of test run: about:translations - 
[task 2025-02-07T22:36:50.853Z] 22:36:50     INFO - GECKO(25972) | [Child 26147: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7f4565291400 == 2 [pid = 26147] [id = 4]
[task 2025-02-07T22:36:50.854Z] 22:36:50     INFO - GECKO(25972) | [Child 26147: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (7f4584675a00) [pid = 26147] [serial = 11] [outer = 0]
[task 2025-02-07T22:36:50.854Z] 22:36:50     INFO - GECKO(25972) | [Child 26147: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 4 (7f4565291c00) [pid = 26147] [serial = 12] [outer = 7f4584675a00]
[task 2025-02-07T22:36:50.854Z] 22:36:50     INFO - checking window state
[task 2025-02-07T22:36:50.916Z] 22:36:50     INFO - TEST-START | toolkit/components/translations/tests/browser/browser_about_translations_language_swap.js

Comment 1

[Intermittent Failures Robot]

Summary

23 failures in 4309 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 18
• try: 3
• mozilla-central: 2

Platform and build breakdown:

• linux1804-64-asan-qr: 3
  • opt: 3
• linux1804-64-qr: 14
  • debug: 8
  • opt: 6
• linux1804-64-tsan-qr: 6
  • opt: 6

Table

	spi-nw	swr
linux1804-64-asan-qr--/opt		3
linux1804-64-qr--/debug	3	5
linux1804-64-qr--/opt	2	4
linux1804-64-tsan-qr--/opt		6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1946901&startday=2025-02-03&endday=2025-02-09&tree=all

Comment 2

[Intermittent Failures Robot]

Summary

26 failures in 1039 pushes (0.025 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 20
• try: 3
• mozilla-central: 3

Platform and build breakdown:

• linux1804-64-asan-qr: 2
  • opt: 2
• linux1804-64-devedition-qr: 2
  • opt: 2
• linux1804-64-qr: 21
  • debug: 8
  • opt: 13
• linux1804-64-tsan-qr: 1
  • opt: 1

Table

	a11y-checks-swr	spi-nw	swr
linux1804-64-asan-qr--/opt			2
linux1804-64-devedition-qr--/opt			2
linux1804-64-qr--/debug		6	2
linux1804-64-qr--/opt	1	7	5
linux1804-64-tsan-qr--/opt			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1946901&startday=2025-02-11&endday=2025-02-11&tree=all

Comment 3

[Erik Nordin [:nordzilla]]

Attachment: Bug 1946901 - Fix race in about:translations reacting to shortlist pref r=#translations-reviewers!

Fixes a race condition where the about:translations page may attempt
to rebuild the translator before the active TranslationsEngine is fully
destroyed. This is likely the cause of the high-frequency intermittent
test failure associated with this bug.

Comment 4

[Intermittent Failures Robot]

Summary

24 failures in 963 pushes (0.025 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 18
• try: 3
• mozilla-central: 3

Platform and build breakdown:

• linux1804-64-asan-qr: 4
  • opt: 4
• linux1804-64-devedition-qr: 1
  • opt: 1
• linux1804-64-qr: 13
  • debug: 8
  • opt: 5
• linux1804-64-tsan-qr: 3
  • opt: 3
• macosx1100-aarch64-qr: 2
  • opt: 2
• windows10-64: 1
  • asan: 1

Table

	no_variant	spi-nw	swr
linux1804-64-asan-qr--/opt			4
linux1804-64-devedition-qr--/opt			1
linux1804-64-qr--/debug		4	4
linux1804-64-qr--/opt		1	4
linux1804-64-tsan-qr--/opt			3
macosx1100-aarch64-qr--/opt		2
windows10-64--/asan	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1946901&startday=2025-02-12&endday=2025-02-12&tree=all

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/148b9bdada0a
Fix race in about:translations reacting to shortlist pref r=translations-reviewers,gregtatum

Comment 6

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/148b9bdada0a

Comment 7

[Intermittent Failures Robot]

Summary

20 failures in 940 pushes (0.021 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 17
• try: 2
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-asan-qr: 4
  • opt: 4
• linux1804-64-qr: 15
  • opt: 7
  • debug: 8
• linux1804-64-tsan-qr: 1
  • opt: 1

Table

	a11y-checks-swr	spi-nw	swr
linux1804-64-asan-qr--/opt			4
linux1804-64-qr--/opt	2	2	3
linux1804-64-qr--/debug		4	4
linux1804-64-tsan-qr--/opt			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1946901&startday=2025-02-13&endday=2025-02-13&tree=all

Comment 8

[Intermittent Failures Robot]

Summary

84 failures in 5022 pushes (0.017 failures/push) were associated with this bug in the last 7 days.

This is the #14 most frequent failure this week.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 68
• try: 9
• mozilla-central: 7

Platform and build breakdown:

• linux1804-64-asan-qr: 13
  • opt: 13
• linux1804-64-devedition-qr: 3
  • opt: 3
• linux1804-64-qr: 58
  • opt: 30
  • debug: 28
• linux1804-64-tsan-qr: 6
  • opt: 6
• macosx1100-aarch64-qr: 2
  • opt: 2
• windows10-64: 1
  • asan: 1
• windows11-64-24h2: 1
  • opt: 1

Table

	a11y-checks-swr	msix	no_variant	spi-nw	swr
linux1804-64-asan-qr--/opt					13
linux1804-64-devedition-qr--/opt					3
linux1804-64-qr--/opt	4			11	15
linux1804-64-qr--/debug				16	12
linux1804-64-tsan-qr--/opt					6
macosx1100-aarch64-qr--/opt				2
windows10-64--/asan			1
windows11-64-24h2--/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1946901&startday=2025-02-10&endday=2025-02-16&tree=all