1638841 - Intermittent bugs/614272-1.svg == bugs/614272-1-ref.svg | image comparison, max difference: 63, number of differing pixels: 45

Status: RESOLVED INCOMPLETE

(Core :: Layout, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: malexandru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=302740978&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Czp9T7njSzWKWSF38zzSgg/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/Czp9T7njSzWKWSF38zzSgg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---

[task 2020-05-18T13:02:49.804Z] 13:02:49     INFO - REFTEST TEST-START | layout/reftests/bugs/614272-1.svg == layout/reftests/bugs/614272-1-ref.svg
[task 2020-05-18T13:02:49.823Z] 13:02:49     INFO - REFTEST TEST-LOAD | file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1.svg | 1562 / 2051 (76%)
[task 2020-05-18T13:02:50.180Z] 13:02:50     INFO - REFTEST TEST-LOAD | file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1-ref.svg | 1562 / 2051 (76%)
[task 2020-05-18T13:02:50.409Z] 13:02:50     INFO - REFTEST TEST-UNEXPECTED-FAIL | layout/reftests/bugs/614272-1.svg == layout/reftests/bugs/614272-1-ref.svg | image comparison, max difference: 63, number of differing pixels: 45
[task 2020-05-18T13:02:50.409Z] 13:02:50     INFO - REFTEST   IMAGE 1 (TEST):
[task 2020-05-18T13:02:50.410Z] 13:02:50     INFO - REFTEST   IMAGE 2 (REFERENCE):
[task 2020-05-18T13:02:50.411Z] 13:02:50     INFO - REFTEST INFO | Saved log: START file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1.svg
[task 2020-05-18T13:02:50.412Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering WaitForTestEnd
[task 2020-05-18T13:02:50.413Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] WaitForTestEnd: Adding listeners
[task 2020-05-18T13:02:50.414Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] AfterPaintListener in file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1.svg
[task 2020-05-18T13:02:50.415Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] AfterPaintListener in file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1.svg
[task 2020-05-18T13:02:50.415Z] 13:02:50     INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-05-18T13:02:50.416Z] 13:02:50     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-05-18T13:02:50.417Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.418Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_TO_FIRE_INVALIDATE_EVENT
[task 2020-05-18T13:02:50.418Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: waiting for updateCanvasPending
[task 2020-05-18T13:02:50.419Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] HandlePendingTasksAfterMakeProgress updating canvas
[task 2020-05-18T13:02:50.419Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] Webrender enabled, sending update whole canvas for invalidation
[task 2020-05-18T13:02:50.420Z] 13:02:50     INFO - REFTEST INFO | Saved log: Updating entire canvas for invalidation
[task 2020-05-18T13:02:50.420Z] 13:02:50     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-05-18T13:02:50.420Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.420Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_TO_FIRE_INVALIDATE_EVENT
[task 2020-05-18T13:02:50.421Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: dispatching MozReftestInvalidate
[task 2020-05-18T13:02:50.421Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.421Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_FOR_REFTEST_WAIT_REMOVAL
[task 2020-05-18T13:02:50.421Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.422Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_FOR_SPELL_CHECKS
[task 2020-05-18T13:02:50.422Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_FOR_APZ_FLUSH
[task 2020-05-18T13:02:50.422Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: done requesting APZ flush
[task 2020-05-18T13:02:50.422Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: apz-repaints-flushed fired
[task 2020-05-18T13:02:50.423Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.423Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_TO_FINISH
[task 2020-05-18T13:02:50.423Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: waiting for MozAfterPaint
[task 2020-05-18T13:02:50.424Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] HandlePendingTasksAfterMakeProgress waiting for a MozAfterPaint
[task 2020-05-18T13:02:50.424Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] AfterPaintListener in file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1.svg
[task 2020-05-18T13:02:50.424Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] HandlePendingTasksAfterMakeProgress updating canvas
[task 2020-05-18T13:02:50.425Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] Webrender enabled, sending update whole canvas for invalidation
[task 2020-05-18T13:02:50.425Z] 13:02:50     INFO - REFTEST INFO | Saved log: Updating entire canvas for invalidation
[task 2020-05-18T13:02:50.425Z] 13:02:50     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-05-18T13:02:50.425Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress
[task 2020-05-18T13:02:50.426Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: STATE_WAITING_TO_FINISH
[task 2020-05-18T13:02:50.426Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] MakeProgress: Completed
[task 2020-05-18T13:02:50.426Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-05-18T13:02:50.426Z] 13:02:50     INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2020-05-18T13:02:50.427Z] 13:02:50     INFO - REFTEST INFO | Saved log: START file:///Z:/task_1589805491/build/tests/reftest/tests/layout/reftests/bugs/614272-1-ref.svg
[task 2020-05-18T13:02:50.427Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2020-05-18T13:02:50.427Z] 13:02:50     INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2020-05-18T13:02:50.427Z] 13:02:50     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2020-05-18T13:02:50.428Z] 13:02:50     INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2020-05-18T13:02:50.428Z] 13:02:50     INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2020-05-18T13:02:50.428Z] 13:02:50     INFO - REFTEST TEST-END | layout/reftests/bugs/614272-1.svg == layout/reftests/bugs/614272-1-ref.svg
[task 2020-05-18T13:02:50.487Z] 13:02:50     INFO - REFTEST TEST-START | layout/reftests/bugs/615121-1.html == layout/reftests/bugs/615121-1-ref.html

Comment 1

[Intermittent Failures Robot]

2 failures in 4727 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform breakdown:

• windows10-64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1638841&startday=2020-05-18&endday=2020-05-24&tree=all

Comment 2

[Intermittent Failures Robot]

2 failures in 5458 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2

Platform breakdown:

• android-hw-p2-8-0-android-aarch64-qr: 1
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1638841&startday=2020-05-25&endday=2020-05-31&tree=all

Comment 3

[Glenn Watson [:gw]]

I investigated this briefly and it looks like some kind of snapping / rounding issue, which would explain why it's intermittent.

In this case, we have:

• A transform with a fractional translation
• An image mask that is 112 pixels wide
• A primitive that is 100 pixels wide
• The image mask bounding rect width is fractional (100.31 pixels)

I suspect the bug is that the image mask bounding rect size shouldn't be fractional, and should be the same size as the primitive, but I haven't confirmed this. It's possible WR could do better here, even if the input data has rounding / snapping issues.

Comment 4

[Intermittent Failures Robot]

10 failures in 4949 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 7
• mozilla-central: 1
• try: 2

Platform breakdown:

• windows10-64-shippable-qr: 5
• windows10-64-qr: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1638841&startday=2020-06-01&endday=2020-06-07&tree=all

Comment 5

[Intermittent Failures Robot]

1 failures in 4035 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Platform breakdown:

• android-hw-p2-8-0-android-aarch64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1638841&startday=2020-06-15&endday=2020-06-21&tree=all

Comment 6

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.