1650866 - Web Platform Reftests with missing parts of letters on win 7

Status: NEW

(Core :: Graphics: Text, defect)

Description

[Treeherder Bug Filer]

Filed by: apavel [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=308715751&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/a3kvNrRJSyeN-Mowh_RUtw/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/a3kvNrRJSyeN-Mowh_RUtw/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---

[task 2020-07-06T17:12:26.376Z] 17:12:26 INFO - TEST-START | /css/css-writing-modes/line-box-direction-vlr-018.xht
[task 2020-07-06T17:12:26.383Z] 17:12:26 INFO - PID 3748 | 1594055546372 Marionette INFO Testing http://web-platform.test:8000/css/css-writing-modes/line-box-direction-vlr-018.xht == http://web-platform.test:8000/css/css-writing-modes/block-flow-direction-001-ref.xht
[task 2020-07-06T17:12:26.450Z] 17:12:26 INFO - PID 3748 | Could not get gdi compatible glyph metrics.
[task 2020-07-06T17:12:26.450Z] 17:12:26 INFO - PID 3748 | /builds/worker/checkouts/gecko/gfx/skia/skia/src/ports/SkScalerContext_win_dw.cpp(435) : error 0x80070005: Access is denied.
[task 2020-07-06T17:12:26.490Z] 17:12:26 INFO - PID 3748 | 1594055546480 Marionette INFO No differences allowed
[task 2020-07-06T17:12:26.540Z] 17:12:26 INFO - TEST-UNEXPECTED-FAIL | /css/css-writing-modes/line-box-direction-vlr-018.xht | Testing http://web-platform.test:8000/css/css-writing-modes/line-box-direction-vlr-018.xht == http://web-platform.test:8000/css/css-writing-modes/block-flow-direction-001-ref.xht

Comment 2

[Intermittent Failures Robot]

18 failures in 5265 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 6
• mozilla-beta: 1
• autoland: 9
• mozilla-release: 2

Platform breakdown:

• windows7-32: 16
• windows7-32-shippable: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-07-06&endday=2020-07-12&tree=all

Comment 3

[Intermittent Failures Robot]

18 failures in 4014 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 4
• mozilla-central: 3
• autoland: 10
• try: 1

Platform breakdown:

• windows7-32: 17
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-07-13&endday=2020-07-19&tree=all

Comment 6

[Andreea Pavel [:apavel]]

Hi Sean, can you assign someone to take a look at this?

Comment 7

[Sean Voisen (:svoisen)]

Jonathan: Any thoughts on what might have caused the orange factor peak recently?

Comment 8

[Jonathan Kew [:jfkthame]]

I believe there have been some changes going on in the WPT world that may have affected the frequency of these failures, e.g. see bug 1651297. It's not anything new, though; this has been a known issue with Win7 tests for years, and there doesn't seem to be anything we can do about it short of (prohibitively expensive) workarounds like restarting between each test to get a fresh graphics environment.

See bug 1392106 for some of the sad history behind this. As for the WPT reftests, Henrik is marking a bunch of them as known-intermittent, as there doesn't seem to be any real solution at hand.

Comment 10

[Intermittent Failures Robot]

55 failures in 4310 pushes (0.013 failures/push) were associated with this bug in the last 7 days.

This is the #18 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 42
• mozilla-beta: 1
• mozilla-release: 4
• mozilla-central: 5
• try: 3

Platform breakdown:

• windows7-32: 54
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-07-20&endday=2020-07-26&tree=all

Comment 11

[Bogdan Tara[:bogdan_tara | bogdant]]

In the last 7 days there have been 35 occurrences on windows7-32 debug.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=311751397&repo=mozilla-central&lineNumber=3393

Comment 12

[Intermittent Failures Robot]

31 failures in 4289 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

This is the #47 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-central: 12
• autoland: 19

Platform breakdown:

• windows7-32: 31

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-07-27&endday=2020-08-02&tree=all

Comment 13

[Intermittent Failures Robot]

37 failures in 4618 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

This is the #32 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-central: 6
• autoland: 29
• mozilla-beta: 2

Platform breakdown:

• windows7-32: 35
• windows7-32-shippable: 1
• windows7-32-devedition: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-08-03&endday=2020-08-09&tree=all

Comment 14

[Bogdan Tara[:bogdan_tara | bogdant]]

In the last 7 days there have been 29 occurrences, all on windows7-32 debug.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=313041857&repo=autoland&lineNumber=3585

Comment 15

[Intermittent Failures Robot]

26 failures in 3601 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

This is the #29 most frequent failure this week.

Repository breakdown:

• mozilla-release: 1
• mozilla-central: 7
• autoland: 18

Platform breakdown:

• windows7-32: 26

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-08-10&endday=2020-08-16&tree=all

Comment 16

[Bogdan Tara[:bogdan_tara | bogdant]]

In the last 7 days there have been 37 occurrences, all on windows7-32 debug.

Recent failure: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=313741623&repo=autoland&lineNumber=3605

Sean, could you, please, direct this to someone who can take a look?

This seems to have the same fate as bug 1392106.

Comment 17

[Jonathan Kew [:jfkthame]]

This is a Graphics failure at the platform level, not a Layout issue. E.g. the log from comment 16 shows

[task 2020-08-22T15:20:59.035Z] 15:20:59     INFO - PID 5652 | 1598109659024	Marionette	INFO	Testing http://web-platform.test:8000/css/css-writing-modes/line-box-direction-srl-057.xht == http://web-platform.test:8000/css/css-writing-modes/block-flow-direction-001-ref.xht
[task 2020-08-22T15:20:59.110Z] 15:20:59     INFO - PID 5652 | Could not get gdi compatible glyph metrics.
[task 2020-08-22T15:20:59.110Z] 15:20:59     INFO - PID 5652 | /builds/worker/checkouts/gecko/gfx/skia/skia/src/ports/SkScalerContext_win_dw.cpp(435) : error 0x80070005: Access is denied.

right before the test failure line, indicating an error within a DirectWrite call.

Almost certainly the same underlying issue as bug 1392106.

Comment 18

[Intermittent Failures Robot]

38 failures in 4100 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

This is the #41 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-central: 8
• autoland: 29
• mozilla-esr78: 1

Platform breakdown:

• windows7-32: 38

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-08-17&endday=2020-08-23&tree=all

Comment 19

[Henrik Skupin [:whimboo][⌚️UTC+1]]

(In reply to Henrik Skupin (:whimboo) [⌚️UTC+2] from comment #9)

With the dependency fixed now, I've updated the patches and pushed a new try build:
https://treeherder.mozilla.org/#/jobs?repo=try&revision=c26b2a8676b46025fbcee7068b27f73e9014f3a9

We seem to have more broken font tests on Windows 7 (similar to bug 1650866).

And as indicated this might be better to be done over on bug 1392106, and just duplicating this?

Comment 21

[Intermittent Failures Robot]

24 failures in 4046 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

This is the #35 most frequent failure this week.

Repository breakdown:

• mozilla-central: 4
• autoland: 20

Platform breakdown:

• windows7-32: 24

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-08-24&endday=2020-08-30&tree=all

Comment 22

[Intermittent Failures Robot]

10 failures in 2984 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3
• autoland: 7

Platform breakdown:

• windows7-32-shippable: 2
• windows7-32: 8

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-08-31&endday=2020-09-06&tree=all

Comment 23

[Intermittent Failures Robot]

5 failures in 3410 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 5

Platform breakdown:

• windows7-32: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-09-07&endday=2020-09-13&tree=all

Comment 24

[Intermittent Failures Robot]

9 failures in 3760 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• mozilla-central: 2
• try: 1

Platform breakdown:

• windows7-32: 8
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-09-14&endday=2020-09-20&tree=all

Comment 25

[Intermittent Failures Robot]

5 failures in 4019 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• mozilla-central: 1
• mozilla-esr78: 2
• try: 1

Platform breakdown:

• windows7-32-shippable: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-09-21&endday=2020-09-27&tree=all

Comment 26

[Intermittent Failures Robot]

5 failures in 4195 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 3
• autoland: 2

Platform breakdown:

• windows7-32-devedition: 2
• windows7-32-shippable: 1
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-09-28&endday=2020-10-04&tree=all

Comment 27

[Intermittent Failures Robot]

1 failures in 4130 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1

Platform breakdown:

• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-10-05&endday=2020-10-11&tree=all

Comment 28

[Intermittent Failures Robot]

2 failures in 4275 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• autoland: 1

Platform breakdown:

• windows7-32-shippable: 1
• windows7-32: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-10-26&endday=2020-11-01&tree=all

Comment 29

[Intermittent Failures Robot]

2 failures in 4128 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 1

Platform breakdown:

• windows7-32-shippable: 1
• windows7-32: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1650866&startday=2020-11-02&endday=2020-11-08&tree=all

Comment 30

[Intermittent Failures Robot]

11 failures in 1479 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 7
• mozilla-central: 4

Platform breakdown:

• windows7-32: 10
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-11-23&endday=2020-11-29&tree=all

Comment 32

[Intermittent Failures Robot]

25 failures in 3712 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 11
• autoland: 14

Platform breakdown:

• windows7-32: 24
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-11-30&endday=2020-12-06&tree=all

Comment 33

[Intermittent Failures Robot]

17 failures in 202 pushes (0.084 failures/push) were associated with this bug yesterday.

Repository breakdown:

• autoland: 17

Platform breakdown:

• windows7-32: 17

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-12-12&endday=2020-12-12&tree=all

Comment 34

[Intermittent Failures Robot]

31 failures in 4060 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

This is the #36 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 28
• mozilla-central: 3

Platform breakdown:

• windows7-32: 30
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-12-07&endday=2020-12-13&tree=all

Comment 35

[Intermittent Failures Robot]

2 failures in 3421 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-beta: 1

Platform breakdown:

• windows7-32: 1
• windows7-32-shippable: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-12-14&endday=2020-12-20&tree=all

Comment 36

[Intermittent Failures Robot]

1 failures in 1450 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-tsan: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2020-12-21&endday=2020-12-27&tree=all

Comment 37

[Intermittent Failures Robot]

3 failures in 3810 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 3

Platform breakdown:

• linux1804-64-shippable-qr: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-01-11&endday=2021-01-17&tree=all

Comment 38

[Intermittent Failures Robot]

6 failures in 3891 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 4
• mozilla-beta: 1

Platform and build breakdown:

• windows7-32: 1
  • opt: 1
• windows7-32-shippable: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-01-25&endday=2021-01-31&tree=all

Comment 39

[Intermittent Failures Robot]

2 failures in 3966 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform and build breakdown:

• windows7-32-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-02-01&endday=2021-02-07&tree=all

Comment 40

[Intermittent Failures Robot]

5 failures in 4322 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5

Platform and build breakdown:

• windows7-32-shippable: 5
  • opt: 5

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-02-08&endday=2021-02-14&tree=all

Comment 41

[Intermittent Failures Robot]

4 failures in 3737 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 3

Platform and build breakdown:

• windows7-32-shippable: 1
  • opt: 1
• windows7-32: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-02-15&endday=2021-02-21&tree=all

Comment 42

[Intermittent Failures Robot]

8 failures in 4327 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 6
• autoland: 1
• mozilla-beta: 1

Platform and build breakdown:

• windows7-32-shippable: 7
  • opt: 7
• windows7-32: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-02-22&endday=2021-02-28&tree=all

Comment 43

[Intermittent Failures Robot]

2 failures in 3683 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 2

Platform and build breakdown:

• windows7-32-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-03-01&endday=2021-03-07&tree=all

Comment 44

[Intermittent Failures Robot]

2 failures in 4622 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• try: 1

Platform and build breakdown:

• windows7-32-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-03-08&endday=2021-03-14&tree=all

Comment 45

[Intermittent Failures Robot]

2 failures in 3967 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 2

Platform and build breakdown:

• windows7-32-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-03-22&endday=2021-03-28&tree=all

Comment 46

[Intermittent Failures Robot]

1 failures in 3224 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr78: 1

Platform and build breakdown:

• windows7-32: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-04-19&endday=2021-04-25&tree=all

Comment 47

[Intermittent Failures Robot]

1 failures in 3279 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Platform and build breakdown:

• windows7-32-shippable: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1650866&startday=2021-05-03&endday=2021-05-09&tree=all