1914795 - Intermittent layout/reftests/counters/counter-korean-hangul-formal.html == layout/reftests/counters/counter-korean-hangul-formal-ref.html | single tracking bug

Status: RESOLVED INCOMPLETE

(Core :: Layout, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: imoraru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=471677270&repo=try
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Mlz7pjUFQA-7ch_pxSVgNQ/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/Mlz7pjUFQA-7ch_pxSVgNQ/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

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[task 2024-08-25T13:28:45.342Z] 13:28:45     INFO - REFTEST TEST-START | layout/reftests/counters/counter-korean-hangul-formal.html == layout/reftests/counters/counter-korean-hangul-formal-ref.html
[task 2024-08-25T13:28:45.342Z] 13:28:45     INFO - REFTEST TEST-LOAD | file:///D:/task_172459105908402/build/tests/reftest/tests/layout/reftests/counters/counter-korean-hangul-formal.html | 73 / 81 (90%)
[task 2024-08-25T13:28:55.364Z] 13:28:55     INFO - [GFX1-]: Killing GPU process due to IPC reply timeout
[task 2024-08-25T13:28:55.940Z] 13:28:55     INFO - REFTEST TEST-UNEXPECTED-FAIL | layout/reftests/counters/counter-korean-hangul-formal.html == layout/reftests/counters/counter-korean-hangul-formal-ref.html | crash-check | This test left crash dumps behind, but we weren't expecting it to!
[task 2024-08-25T13:28:55.941Z] 13:28:55     INFO - REFTEST INFO | Found unexpected crash dump file C:\Users\task_172459105908402\AppData\Local\Temp\tmpgmy1_h5a.mozrunner\minidumps\b0a39157-160a-497e-9fc0-9ccac76aac19-browser.dmp
[task 2024-08-25T13:28:55.942Z] 13:28:55     INFO - REFTEST INFO | Found unexpected crash dump file C:\Users\task_172459105908402\AppData\Local\Temp\tmpgmy1_h5a.mozrunner\minidumps\b0a39157-160a-497e-9fc0-9ccac76aac19.dmp
[task 2024-08-25T13:28:55.943Z] 13:28:55     INFO - REFTEST INFO | Found unexpected crash dump file C:\Users\task_172459105908402\AppData\Local\Temp\tmpgmy1_h5a.mozrunner\minidumps\b0a39157-160a-497e-9fc0-9ccac76aac19.extra
[task 2024-08-25T13:28:55.943Z] 13:28:55     INFO - REFTEST TEST-LOAD | file:///D:/task_172459105908402/build/tests/reftest/tests/layout/reftests/counters/counter-korean-hangul-formal-ref.html | 73 / 81 (90%)
[task 2024-08-25T13:29:06.550Z] 13:29:06     INFO - [GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown
[task 2024-08-25T13:29:06.553Z] 13:29:06     INFO - [GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown
[task 2024-08-25T13:29:06.557Z] 13:29:06     INFO - [GFX1-]: Com[pGF[GoFsXi1-]:Xto CormBripdge1C-hiolsd ]ritorBe:rid cgeCCoemphiildveos re scieitIPC vcleosrBro se iIPCd cglowisee wCithh treialhd  sonr=Aebceinvore[asrGmaesl IPFon=XAbnS1-C]: ormcalh ulCtodomwnpo
[task 2024-08-25T13:29:06.558Z] 13:29:06     INFO - seSoh uwtsidiownt
[task 2024-08-25T13:29:06.559Z] 13:29:06     INFO - hto rreasonBr=idAbnormagelChilShdut rdeceiveowns
[task 2024-08-25T13:29:06.559Z] 13:29:06     INFO -  IPC close with reason=AbnormalShutdown
[task 2024-08-25T13:29:06.560Z] 13:29:06     INFO - [Parent 7800, Main Thread] WARNING: base::KillProcess refusing to terminate process handle 0: file /builds/worker/checkouts/gecko/ipc/chromium/src/base/process_util_win.cc:350
[task 2024-08-25T13:29:06.561Z] 13:29:06     INFO - [GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown
[task 2024-08-25T13:29:06.562Z] 13:29:06     INFO - [GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown
[task 2024-08-25T13:29:07.454Z] 13:29:07     INFO - REFTEST TEST-UNEXPECTED-FAIL | layout/reftests/counters/counter-korean-hangul-formal.html == layout/reftests/counters/counter-korean-hangul-formal-ref.html | image comparison, max difference: 255, number of differing pixels: 1
[task 2024-08-25T13:29:07.455Z] 13:29:07     INFO - REFTEST   IMAGE 1 (TEST): data:image/png;base64,<...>
[task 2024-08-25T13:29:07.455Z] 13:29:07     INFO - REFTEST   IMAGE 2 (REFERENCE): data:image/png;base64,<...>
[task 2024-08-25T13:29:07.456Z] 13:29:07     INFO - REFTEST INFO | Saved log: START file:///D:/task_172459105908402/build/tests/reftest/tests/layout/reftests/counters/counter-korean-hangul-formal.html
[task 2024-08-25T13:29:07.456Z] 13:29:07     INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2024-08-25T13:29:07.457Z] 13:29:07     INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2024-08-25T13:29:07.457Z] 13:29:07     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2024-08-25T13:29:07.458Z] 13:29:07     INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2024-08-25T13:29:07.458Z] 13:29:07     INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2024-08-25T13:29:07.459Z] 13:29:07     INFO - REFTEST INFO | Saved log: START file:///D:/task_172459105908402/build/tests/reftest/tests/layout/reftests/counters/counter-korean-hangul-formal-ref.html
[task 2024-08-25T13:29:07.460Z] 13:29:07     INFO - REFTEST INFO | Saved log: [CONTENT] OnDocumentLoad triggering AfterOnLoadScripts
[task 2024-08-25T13:29:07.460Z] 13:29:07     INFO - REFTEST INFO | Saved log: Initializing canvas snapshot
[task 2024-08-25T13:29:07.460Z] 13:29:07     INFO - REFTEST INFO | Saved log: DoDrawWindow 0,0,800,1000
[task 2024-08-25T13:29:07.461Z] 13:29:07     INFO - REFTEST INFO | Saved log: [CONTENT] RecordResult fired
[task 2024-08-25T13:29:07.461Z] 13:29:07     INFO - REFTEST INFO | Saved log: RecordResult fired
[task 2024-08-25T13:29:07.462Z] 13:29:07     INFO - REFTEST TEST-END | layout/reftests/counters/counter-korean-hangul-formal.html == layout/reftests/counters/counter-korean-hangul-formal-ref.html
[task 2024-08-25T13:29:07.463Z] 13:29:07     INFO - REFTEST TEST-START | layout/reftests/counters/counter-korean-hanja-informal.html == layout/reftests/counters/counter-korean-hanja-informal-ref.html

Comment 1

[Iulian Moraru]

Hi Daniel! Could this just be Bug 1440376?
Thank you!

Comment 2

[Daniel Holbert [:dholbert]]

So from the reftest-analyzer view, it seems the mismatch is a single pixel at the top left corner, which is solid-black in the reference case for no clear reason (it's nowhere near the actual test content).

A single-random-pixel difference is sometimes a signal of bad RAM (i.e. Bug 1440376), but in this case, the Killing GPU process due to IPC reply timeout is probably more relevant to things-going-awry-when-the-test-failed.

I think that's an instance of the pile-o'-bugs that we're tracking via see-also for bug 1858436.

Either way, this will probably be a one-off and will never happen again (in this particular test).

Comment 3

[Intermittent Failures Robot]

1 failures in 3218 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1

Platform and build breakdown:

• windows11-64-2009-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1914795&startday=2024-08-19&endday=2024-08-25&tree=all

Comment 4

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

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