Closed Bug 1974534 Opened 9 months ago Closed 9 months ago

Perma [tier 2] /css/css-scroll-snap/overscroll-snap.html | snapport covered by snap area doesn't jump - assert_approx_equals: scroller is scrolled to its bottom and not its top. expected 1543 +/- 1 but got 362

Categories

(Core :: Layout: Scrolling and Overflow, defect, P2)

Product:
Core
Component:
Layout: Scrolling and Overflow
Type:
defect
Points:
1

Tracking

()

Status:
RESOLVED FIXED
Milestone:
142 Branch
Tracking Flags:
Tracking Status
firefox-esr128 --- unaffected
firefox-esr140 --- unaffected
firefox140 --- unaffected
firefox141 --- unaffected
firefox142 --- fixed

People

(Reporter: intermittent-bug-filer, Assigned: whimboo)

References

(Regression)

Details

(Keywords: intermittent-failure, intermittent-testcase, regression, Whiteboard: [webdriver:m17])

Attachments

(1 file)

Bug 1974534 - [wpt] Use meta viewport tag and mark overscroll-snap.html as expected fail.
48 bytes, text/x-phabricator-request
Details | Review

Filed by: sstanca [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=515231424&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Rph9eda9QqCfEPpSOCH8yw/runs/0/artifacts/public/logs/live_backing.log

[task 2025-06-27T18:15:36.853+00:00] 18:15:36     INFO - TEST-PASS | /css/css-rhythm/computedstyle/inline-level-replaced-elements-not-affected-by-block-step-size.html | .test 14 
[task 2025-06-27T18:15:36.853+00:00] 18:15:36     INFO - TEST-UNEXPECTED-FAIL | /css/css-scroll-snap/overscroll-snap.html | snapport covered by snap area doesn't jump - assert_approx_equals: scroller is scrolled to its bottom and not its top. expected 1543 +/- 1 but got 362
[task 2025-06-27T18:15:36.853+00:00] 18:15:36     INFO - @http://web-platform.test:8000/css/css-scroll-snap/overscroll-snap.html:44:29
[task 2025-06-27T18:15:36.853+00:00] 18:15:36     INFO - TEST-INFO | expected TIMEOUT
[task 2025-06-27T18:15:36.912+00:00] 18:15:36     INFO - TEST-UNEXPECTED-OK | /css/css-scroll-snap/overscroll-snap.html | expected TIMEOUT
[task 2025-06-27T18:15:36.912+00:00] 18:15:36     INFO - TEST-INFO expected TIMEOUT | took 1026ms
[task 2025-06-27T18:15:37.425+00:00] 18:15:37     INFO - STDOUT: cleanup aborted: Unable to remount device
[task 2025-06-27T18:15:37.425+00:00] 18:15:37     INFO - Closing logging queue
[task 2025-06-27T18:15:37.426+00:00] 18:15:37     INFO - queue closed
[task 2025-06-27T18:15:37.433+00:00] 18:15:37     INFO - Setting up ssl
[task 2025-06-27T18:15:37.463+00:00] 18:15:37     INFO - certutil | b''
[task 2025-06-27T18:15:37.493+00:00] 18:15:37     INFO - certutil | b''
[task 2025-06-27T18:15:37.500+00:00] 18:15:37     INFO - certutil | b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
[task 2025-06-27T18:15:38.010+00:00] 18:15:38     INFO - adb Granting important runtime permissions to org.mozilla.geckoview.test_runner
[task 2025-06-27T18:15:39.127+00:00] 18:15:39     INFO - adb launch_application: am start -W -n org.mozilla.geckoview.test_runner/org.mozilla.geckoview.test_runner.TestRunnerActivity -a android.intent.action.MAIN --es env0 MOZ_CRASHREPORTER=1 --es env1 MOZ_CRASHREPORTER_NO_REPORT=1 --es env2 MOZ_CRASHREPORTER_SHUTDOWN=1 --es env3 MOZ_HIDE_RESULTS_TABLE=1 --es env4 MOZ_IN_AUTOMATION=1 --es env5 MOZ_LOG=signaling:3,mtransport:4,DataChannel:3,jsep:4 --es env6 R_LOG_LEVEL=6 --es env7 R_LOG_DESTINATION=stderr --es env8 R_LOG_VERBOSE=1 --es env9 MOZ_PROCESS_LOG=/tmp/tmp5_1vkrxhpidlog --es env10 MINIDUMP_SAVE_PATH=/builds/worker/workspace/build/blobber_upload_dir --es env11 MOZ_DISABLE_NONLOCAL_CONNECTIONS=1 --es arg0 -no-remote --es arg1 -profile --es arg2 /data/local/tmp/test_root/profile --es arg3 --marionette --es arg4 --remote-allow-system-access --es arg5 about:blank
[task 2025-06-27T18:15:40.361+00:00] 18:15:40     INFO - Starting runner
[task 2025-06-27T18:15:41.584+00:00] 18:15:41     INFO - TEST-START | /css/css-scroll-snap/snap-at-user-scroll-end.html

Also, these wpt failures seem to have same root cause. Failure Log

Hi Henrik! Could you please take a look at these failures?

Thank you!

Severity: S4 → --
Flags: needinfo?(hskupin)
Keywords: regression
Priority: P5 → --
Regressed by: 1964903
See Also: → 1974535

Adding a meta viewport tag will solve this failure on Android.

See Also: → 1971979
Whiteboard: [collect_confirm_failure]

(In reply to Hiroyuki Ikezoe (:hiro) from comment #2)

Adding a meta viewport tag will solve this failure on Android.

The test fails on other platforms as well. So the meta viewport for Android might only be the first step. Something else is still wrong. But I assume we can just update the meta data similar to bug 1974535, or should I remove the ini file and don't mark this bug as reference for a missing implementation?

Flags: needinfo?(hskupin) → needinfo?(hikezoe.birchill)

Err, wait. It's actually failing as expected at the moment.

Lets also leave this bug open due to the perma failure that we now see.

Flags: needinfo?(hikezoe.birchill)
Keywords: leave-open
Pushed by hskupin@mozilla.com: https://github.com/mozilla-firefox/firefox/commit/3c141b464f82 https://hg.mozilla.org/integration/autoland/rev/0a74f78fbd67 [wpt] Use meta viewport tag and mark overscroll-snap.html as expected fail. r=hiro
Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/53504 for changes under testing/web-platform/tests
Severity: -- → S3
Priority: -- → P2
Upstream PR merged by moz-wptsync-bot

There are no more failures since my patch landed. So the perma failure is fixed.

Assignee: nobody → hskupin
Status: NEW → RESOLVED
Points: --- → 1
Closed: 9 months ago
status-firefox142: --- → fixed
Keywords: leave-open
Resolution: --- → FIXED
Whiteboard: [webdriver:m17]
Target Milestone: --- → 142 Branch

Set release status flags based on info from the regressing bug 1964903

status-firefox140: --- → unaffected
status-firefox141: --- → unaffected
status-firefox-esr128: --- → unaffected
status-firefox-esr140: --- → unaffected
Blocks: 2013447
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