Open Bug 1382969 Opened 7 years ago Updated 2 years ago

Intermittent /css/css-backgrounds-3/background-size-029.html | Testing background-size-029.html == background-size-029-ref.xht

Categories

(Core :: CSS Parsing and Computation, defect)

defect

Tracking

()

REOPENED

People

(Reporter: intermittent-bug-filer, Unassigned)

References

Details

(Keywords: intermittent-failure, Whiteboard: [stockwell unknown])

Summary: Intermittent /css/css-backgrounds-3/background-size-029.html | Testing http://web-platform.test:8000/css/css-backgrounds-3/background-size-029.html == http://web-platform.test:8000/css/css-backgrounds-3/reference/background-size-029-ref.xht → Intermittent /css/css-backgrounds-3/background-size-029.html | Testing background-size-029.html == background-size-029-ref.xht
probably a single root cause for these css-background failures.
Component: web-platform-tests → CSS Parsing and Computation
Product: Testing → Core
Whiteboard: [stockwell unknown]
Version: Version 3 → unspecified
See Also: → 1383682
See Also: → 1383233
See discussion in bug 1383682.
Over the past week there are 30 failures present for this bug

Failures happen on Linux 32 and 64bit

Here is a recent log example: https://treeherder.mozilla.org/logviewer.html#?repo=autoland&job_id=154566171&lineNumber=13625

Here is the relevant part of the log:

[task 2018-01-06T15:52:15.706Z] 15:52:15     INFO - PID 5504 | 1515253935696	Marionette	INFO	Testing http://web-platform.test:8000/css/css-backgrounds/background-size-029.html == http://web-platform.test:8000/css/css-backgrounds/reference/background-size-029-ref.xht
[task 2018-01-06T15:52:15.743Z] 15:52:15     INFO - PID 5504 | ++DOMWINDOW == 80 (0xdf92d000) [pid = 5610] [serial = 80] [outer = 0xea0b0040]
[task 2018-01-06T15:52:15.784Z] 15:52:15     INFO - PID 5504 | [Child 5610, Main Thread] WARNING: Shouldn't call SchedulePaint in a detached pres context: file /builds/worker/workspace/build/src/layout/generic/nsFrame.cpp, line 6940
[task 2018-01-06T15:52:15.845Z] 15:52:15     INFO - PID 5504 | ++DOMWINDOW == 81 (0xdf93b400) [pid = 5610] [serial = 81] [outer = 0xea0b0040]
[task 2018-01-06T15:52:15.928Z] 15:52:15     INFO - PID 5504 | 1515253935918	Marionette	INFO	Found 9150 pixels different, maximum difference per channel 76
[task 2018-01-06T15:52:15.983Z] 15:52:15     INFO - TEST-UNEXPECTED-FAIL | /css/css-backgrounds/background-size-029.html | Testing http://web-platform.test:8000/css/css-backgrounds/background-size-029.html == http://web-platform.test:8000/css/css-backgrounds/reference/background-size-029-ref.xht
Whiteboard: [stockwell unknown] → [stockwell needswork]
:jet this is debug only (the ccov builds are debug but reported as opt)- I recall recently a bug we were ok disabling on debug instead of adding fuzzy-if()- do you have a preference for this bug?

here is a reftest-analyzer link:
https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://queue.taskcluster.net/v1/task/GcRFec2cTAG-WOkv4A5bRw/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1
Flags: needinfo?(bugs)
We surely don't want to add 9000+ pixels of fuzz to fix this, and it also happens on release builds. There's a downscale-during-decode timing-sensitive bug under here, and I think we still want to fix it (see bug 1383682 comment 35 for the diagnosis.)
Flags: needinfo?(bugs)
https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → INCOMPLETE
See Also: → 1572420
Severity: normal → S3
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