1607658 - Intermittent layout/generic/crashtests/1032450.html | assertion count 358 is more than expected 0 to 24 assertions

Status: RESOLVED FIXED

(Core :: Layout, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: btara [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=283957914&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/P69HXJE6QfKKszgW0ErALQ/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/P69HXJE6QfKKszgW0ErALQ/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---

[task 2020-01-08T03:35:51.311Z] 03:35:51 INFO - REFTEST TEST-START | http://10.0.2.2:8854/tests/layout/generic/crashtests/1032450.html
[task 2020-01-08T03:35:51.311Z] 03:35:51 INFO - REFTEST INFO | SET PREFERENCE pref(font.size.inflation.minTwips,200)
[task 2020-01-08T03:35:51.311Z] 03:35:51 INFO - REFTEST TEST-LOAD | http://10.0.2.2:8854/tests/layout/generic/crashtests/1032450.html | 2571 / 3751 (68%)
[task 2020-01-08T03:35:51.312Z] 03:35:51 INFO - REFTEST TEST-PASS | http://10.0.2.2:8854/tests/layout/generic/crashtests/1032450.html | (LOAD ONLY)
[task 2020-01-08T03:35:51.312Z] 03:35:51 INFO - REFTEST TEST-END | http://10.0.2.2:8854/tests/layout/generic/crashtests/1032450.html
[task 2020-01-08T03:35:51.312Z] 03:35:51 WARNING - REFTEST TEST-UNEXPECTED-FAIL | http://10.0.2.2:8854/tests/layout/generic/crashtests/1032450.html | assertion count 358 is more than expected 0 to 24 assertions

Comment 1

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

TYLin, this seems to be a regression from bug 1603088. Can you take a look at it, please?

Comment 2

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

If this happens frequently, we can consider increase the assertion count. However, I found something unreasonable about the assertion count. Filed bug 1608305.

Comment 3

[Intermittent Failures Robot]

15 failures in 4472 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 14
• try: 1

Platform breakdown:

• android-em-7-0-x86_64-qr: 14
• android-em-7-0-x86_64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1607658&startday=2020-01-06&endday=2020-01-12&tree=all

Comment 4

[Natalia Csoregi [:nataliaCs]]

Update:
There have been 24 failures within the last 7 days, all of them on Android 7.0 x86-64 debug.

Recent failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=285526130&repo=mozilla-central&lineNumber=12174

Comment 5

[Intermittent Failures Robot]

25 failures in 3773 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 2
• autoland: 20
• mozilla-central: 3

Platform breakdown:

• android-em-7-0-x86_64-qr: 22
• android-em-7-0-x86_64: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1607658&startday=2020-01-13&endday=2020-01-19&tree=all

Comment 6

[Intermittent Failures Robot]

15 failures in 732 pushes (0.02 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-central: 2
• autoland: 13

Platform breakdown:

• android-em-7-0-x86_64-qr: 14
• android-em-7-0-x86_64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1607658&startday=2020-01-21&endday=2020-01-21&tree=all

Comment 7

[Cosmin Sabou [:CosminS]]

This has 58 total failures in the last 7 days, all on android-em-7-0-x86_64 debug and most on webrender: https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?startday=2020-01-18&endday=2020-01-25&tree=trunk&bug=1607658

Recent failure log: https://treeherder.mozilla.org/logviewer.html#?job_id=286481175&repo=autoland

Comment 8

[Intermittent Failures Robot]

61 failures in 4004 pushes (0.015 failures/push) were associated with this bug in the last 7 days.

This is the #16 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: 55
• mozilla-central: 4
• try: 2

Platform breakdown:

• android-em-7-0-x86_64: 10
• android-em-7-0-x86_64-qr: 51

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1607658&startday=2020-01-20&endday=2020-01-26&tree=all

Comment 9

[Cosmin Sabou [:CosminS]]

Attachment: Bug 1607658 - Bump no of assertion count for 1032450.html cause of frequent failures. r=TYLin

Comment 10

[Cosmin Sabou [:CosminS]]

TYLin, any updates on this? Because this has failed 134 times since it was filed on 7th Jan and made a patch to bump the number of assertion count until Bug 1608305 is sorted out.

Comment 11

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/052b2f231f10
Bump no of assertion count for 1032450.html cause of frequent failures. r=TYLin

Comment 12

[Ting-Yu Lin [:TYLin] (PST, UTC-8)]

If what I observed in bug 1608305 is correct, then the culprit that generates the massive assertions intermittently should be 1015844.html, not 1032450.html. Since it happens only on Android, unless I find a way to reproduce it on the desktop, it will be very hard to fix the root cause in multi-column layout. Therefore, I agree that it is best to bump the assertion counts for 1015844.html to reduce the noise.

Comment 13

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/052b2f231f10

Comment 14

[Intermittent Failures Robot]

46 failures in 2190 pushes (0.021 failures/push) were associated with this bug in the last 7 days.

This is the #5 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: 34
• try: 7
• mozilla-central: 5

Platform breakdown:

• android-em-7-0-x86_64: 11
• android-em-7-0-x86_64-qr: 35

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1607658&startday=2020-01-27&endday=2020-02-02&tree=all