1696110 - Intermittent browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - Got "-2", expected "-1"

Status: RESOLVED WORKSFORME

(Firefox :: General, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: dluca [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=331849895&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/O2r-uLJjR2ysN3dmX7szHw/runs/0/artifacts/public/logs/live_backing.log

---

INFO - TEST-START | browser/base/content/test/backforward/browser_history_menu.js
[task 2021-03-03T05:58:30.724Z] 05:58:30     INFO - TEST-INFO | started process screentopng
[task 2021-03-03T05:58:31.083Z] 05:58:31     INFO - TEST-INFO | screentopng: exit 0
[task 2021-03-03T05:58:31.092Z] 05:58:31     INFO - Buffered messages logged at 05:58:28
[task 2021-03-03T05:58:31.092Z] 05:58:31     INFO - Entering test bound mousedown_back
[task 2021-03-03T05:58:31.092Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.093Z] 05:58:31     INFO - Buffered messages logged at 05:58:29
[task 2021-03-03T05:58:31.093Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.093Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.093Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.094Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.097Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - 
[task 2021-03-03T05:58:31.097Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.098Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.098Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - 
[task 2021-03-03T05:58:31.098Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.099Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.109Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.109Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.109Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.109Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - 
[task 2021-03-03T05:58:31.110Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.110Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.111Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - 
[task 2021-03-03T05:58:31.111Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri - 
[task 2021-03-03T05:58:31.111Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index - 
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - 
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - Buffered messages logged at 05:58:30
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.112Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.113Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.116Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - 
[task 2021-03-03T05:58:31.117Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.117Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.118Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - 
[task 2021-03-03T05:58:31.121Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri - 
[task 2021-03-03T05:58:31.121Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index - 
[task 2021-03-03T05:58:31.122Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - 
[task 2021-03-03T05:58:31.123Z] 05:58:31     INFO - Leaving test bound mousedown_back
[task 2021-03-03T05:58:31.123Z] 05:58:31     INFO - Entering test bound contextmenu_back
[task 2021-03-03T05:58:31.124Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.124Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.124Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.125Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.125Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.125Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - 
[task 2021-03-03T05:58:31.131Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.131Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.131Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - 
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.132Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - 
[task 2021-03-03T05:58:31.133Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.133Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.133Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - 
[task 2021-03-03T05:58:31.133Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri - 
[task 2021-03-03T05:58:31.134Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index - 
[task 2021-03-03T05:58:31.134Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - 
[task 2021-03-03T05:58:31.134Z] 05:58:31     INFO - waiting for the history menu to open
[task 2021-03-03T05:58:31.134Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened - 
[task 2021-03-03T05:58:31.135Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items - 
[task 2021-03-03T05:58:31.135Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri - 
[task 2021-03-03T05:58:31.135Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index - 
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - Buffered messages finished
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - Got "-2", expected "-1"
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - Stack trace:
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - chrome://mochikit/content/browser-test.js:test_is:1359
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:78
[task 2021-03-03T05:58:31.136Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri - 
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index - 
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - Got "-1", expected "0"
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - Stack trace:
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - chrome://mochikit/content/browser-test.js:test_is:1359
[task 2021-03-03T05:58:31.137Z] 05:58:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:87
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri - 
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index - 
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - Got "0", expected "1"
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - Stack trace:
[task 2021-03-03T05:58:31.138Z] 05:58:31     INFO - chrome://mochikit/content/browser-test.js:test_is:1359
[task 2021-03-03T05:58:31.139Z] 05:58:31     INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:97
[task 2021-03-03T05:58:31.140Z] 05:58:31     INFO - Leaving test bound contextmenu_back
[task 2021-03-03T05:58:31.142Z] 05:58:31     INFO - GECKO(5464) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2021-03-03T05:58:31.142Z] 05:58:31     INFO - GECKO(5464) | MEMORY STAT | vsize 3126MB | residentFast 292MB | heapAllocated 113MB
[task 2021-03-03T05:58:31.143Z] 05:58:31     INFO - TEST-OK | browser/base/content/test/backforward/browser_history_menu.js | took 2765ms
[task 2021-03-03T05:58:31.144Z] 05:58:31     INFO - checking window state
[task 2021-03-03T05:58:31.145Z] 05:58:31     INFO - GECKO(5464) | Completed ShutdownLeaks collections in process 5464
[task 2021-03-03T05:58:31.145Z] 05:58:31     INFO - TEST-START | Shutdown```

Comment 1

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

Set release status flags based on info from the regressing bug 1670808

Comment 2

[Intermittent Failures Robot]

7 failures in 3683 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• autoland: 2

Platform and build breakdown:

• linux1804-64-shippable: 3
  • opt: 3
• linux1804-64: 4
  • debug: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-03-01&endday=2021-03-07&tree=all

Comment 3

[Intermittent Failures Robot]

8 failures in 4622 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 5
• mozilla-central: 3

Platform and build breakdown:

• linux1804-64: 6
  • debug: 6
• linux1804-64-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-03-08&endday=2021-03-14&tree=all

Comment 4

[Sandor Molnar[:smolnar]]

There have been a total of 28 failures in the past 7 days on
■ linux1804-64 debug
■ linux1804-64-shippable opt

Recent failure log

INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index -
[task 2021-03-20T09:30:20.686Z] 09:30:20 INFO - Buffered messages finished
[task 2021-03-20T09:30:20.687Z] 09:30:20 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - Got "-2", expected "-1"
[task 2021-03-20T09:30:20.687Z] 09:30:20 INFO - Stack trace:
[task 2021-03-20T09:30:20.687Z] 09:30:20 INFO - chrome://mochikit/content/browser-test.js:test_is:1359
[task 2021-03-20T09:30:20.687Z] 09:30:20 INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:78
[task 2021-03-20T09:30:20.688Z] 09:30:20 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri -
[task 2021-03-20T09:30:20.688Z] 09:30:20 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index -
[task 2021-03-20T09:30:20.689Z] 09:30:20 INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-03-20T09:30:20.689Z] 09:30:20 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - Got "-1", expected "0"
[task 2021-03-20T09:30:20.690Z] 09:30:20 INFO - Stack trace:
[task 2021-03-20T09:30:20.690Z] 09:30:20 INFO - chrome://mochikit/content/browser-test.js:test_is:1359
[task 2021-03-20T09:30:20.691Z] 09:30:20 INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:87
[task 2021-03-20T09:30:20.691Z] 09:30:20 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri -
[task 2021-03-20T09:30:20.695Z] 09:30:20 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index -
[task 2021-03-20T09:30:20.699Z] 09:30:20 INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-03-20T09:30:20.703Z] 09:30:20 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - Got "0", expected "1"

Comment 5

[Intermittent Failures Robot]

27 failures in 4257 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

This is the #43 most frequent failure this week.

Repository breakdown:

• autoland: 21
• try: 3
• mozilla-central: 3

Platform and build breakdown:

• linux1804-64: 25
  • debug: 25
• linux1804-64-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-03-15&endday=2021-03-21&tree=all

Comment 6

[Neil Deakin]

Seems to have been a large jump of failures all at once then dropped off again.

The screenshot suggests that the history.back() isn't working sometimes on Linux. Can't reproduce locally. I can take a more detailed look if this failure gets worse, or part of the test can just be disabled on linux.

Comment 7

[Intermittent Failures Robot]

19 failures in 3967 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 9
• mozilla-central: 8
• try: 2

Platform and build breakdown:

• linux1804-64: 17
  • debug: 17
• linux1804-64-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-03-22&endday=2021-03-28&tree=all

Comment 8

[Intermittent Failures Robot]

14 failures in 3125 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 8
• mozilla-central: 6

Platform and build breakdown:

• linux1804-64: 13
  • debug: 13
• linux1804-64-shippable: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-03-29&endday=2021-04-04&tree=all

Comment 9

[Intermittent Failures Robot]

15 failures in 3854 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 9
• mozilla-central: 5
• try: 1

Platform and build breakdown:

• linux1804-64: 13
  • debug: 13
• linux1804-64-shippable: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-04-05&endday=2021-04-11&tree=all

Comment 10

[Intermittent Failures Robot]

13 failures in 4255 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 8
• mozilla-central: 5

Platform and build breakdown:

• linux1804-64: 9
  • debug: 9
• linux1804-64-shippable: 3
  • opt: 3
• windows10-64-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-04-12&endday=2021-04-18&tree=all

Comment 11

[Intermittent Failures Robot]

21 failures in 3224 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 15
• mozilla-central: 6

Platform and build breakdown:

• linux1804-64: 12
  • debug: 12
• linux1804-64-shippable: 4
  • opt: 4
• linux1804-64-qr: 3
  • debug: 2
  • opt: 1
• windows10-64-qr: 2
  • debug: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-04-19&endday=2021-04-25&tree=all

Comment 12

[Intermittent Failures Robot]

13 failures in 3706 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• autoland: 8

Platform and build breakdown:

• linux1804-64: 10
  • debug: 9
  • opt: 1
• linux1804-64-shippable: 3
  • opt: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-04-26&endday=2021-05-02&tree=all

Comment 13

[Intermittent Failures Robot]

16 failures in 3279 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 7
• autoland: 8
• try: 1

Platform and build breakdown:

• linux1804-64-shippable: 4
  • opt: 4
• linux1804-64: 12
  • debug: 11
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-05-03&endday=2021-05-09&tree=all

Comment 14

[Andreea Pavel [:apavel]]

There are 28 total failures in the last 7 days on

• linux1804-64 debug
• linux1804-64-shippable opt
  Recent faulure log: https://treeherder.mozilla.org/logviewer?job_id=339332508&repo=mozilla-central&lineNumber=2875

task 2021-05-11T02:35:53.395Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex -
[task 2021-05-11T02:35:53.396Z] 02:35:53 INFO - waiting for the history menu to open
[task 2021-05-11T02:35:53.396Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened -
[task 2021-05-11T02:35:53.397Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items -
[task 2021-05-11T02:35:53.418Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri -
[task 2021-05-11T02:35:53.418Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index -
[task 2021-05-11T02:35:53.419Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex -
[task 2021-05-11T02:35:53.419Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri -
[task 2021-05-11T02:35:53.420Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index -
[task 2021-05-11T02:35:53.420Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex -
[task 2021-05-11T02:35:53.421Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri -
[task 2021-05-11T02:35:53.422Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index -
[task 2021-05-11T02:35:53.422Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex -
[task 2021-05-11T02:35:53.423Z] 02:35:53 INFO - waiting for the history menu to open
[task 2021-05-11T02:35:53.423Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | history menu opened -
[task 2021-05-11T02:35:53.424Z] 02:35:53 INFO - Buffered messages logged at 02:35:53
[task 2021-05-11T02:35:53.425Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | Correct number of history items -
[task 2021-05-11T02:35:53.426Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item uri -
[task 2021-05-11T02:35:53.427Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '1' item index -
[task 2021-05-11T02:35:53.427Z] 02:35:53 INFO - Buffered messages finished
[task 2021-05-11T02:35:53.428Z] 02:35:53 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '1' item historyindex - Got "-2", expected "-1"
[task 2021-05-11T02:35:53.428Z] 02:35:53 INFO - Stack trace:
[task 2021-05-11T02:35:53.428Z] 02:35:53 INFO - chrome://mochikit/content/browser-test.js:test_is:1362
[task 2021-05-11T02:35:53.428Z] 02:35:53 INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:78
[task 2021-05-11T02:35:53.429Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item uri -
[task 2021-05-11T02:35:53.429Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '2' item index -
[task 2021-05-11T02:35:53.430Z] 02:35:53 INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-11T02:35:53.431Z] 02:35:53 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '2' item historyindex - Got "-1", expected "0"
[task 2021-05-11T02:35:53.431Z] 02:35:53 INFO - Stack trace:
[task 2021-05-11T02:35:53.431Z] 02:35:53 INFO - chrome://mochikit/content/browser-test.js:test_is:1362
[task 2021-05-11T02:35:53.431Z] 02:35:53 INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:87
[task 2021-05-11T02:35:53.431Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item uri -
[task 2021-05-11T02:35:53.432Z] 02:35:53 INFO - TEST-PASS | browser/base/content/test/backforward/browser_history_menu.js | '3' item index -
[task 2021-05-11T02:35:53.432Z] 02:35:53 INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-05-11T02:35:53.434Z] 02:35:53 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/backforward/browser_history_menu.js | '3' item historyindex - Got "0", expected "1"
[task 2021-05-11T02:35:53.434Z] 02:35:53 INFO - Stack trace:
[task 2021-05-11T02:35:53.434Z] 02:35:53 INFO - chrome://mochikit/content/browser-test.js:test_is:1362
[task 2021-05-11T02:35:53.434Z] 02:35:53 INFO - chrome://mochitests/content/browser/browser/base/content/test/backforward/browser_history_menu.js:testBackForwardMenu:97
[task 2021-05-11T02:35:53.434Z] 02:35:53 INFO - GECKO(1554) | [Child 1618: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7f27c27d1000 == 3 [pid = 1618] [id = 2]
[task 2021-05-11T02:35:53.435Z] 02:35:53 INFO - GECKO(1554) | [Child 1618: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 7 (7f27c1919040) [pid = 1618] [serial = 7] [outer = 0]
[task 2021-05-11T02:35:53.435Z] 02:35:53 INFO - GECKO(1554) | [Child 1618: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 8 (7f27c27d2000) [pid = 1618] [serial = 8] [outer = 7f27c1919040]
[task 2021-05-11T02:35:53.436Z] 02:35:53 INFO - GECKO(1554) | [Child 1618: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 9 (7f27c27d5c00) [pid = 1618] [serial = 9] [outer = 7f27c1919040]
[task 2021-05-11T02:35:53.437Z] 02:35:53 INFO - GECKO(1554) | [Child 1776: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7f4269540c00 == 2 [pid = 1776] [id = 1]
[task 2021-05-11T02:35:53.437Z] 02:35:53 INFO - GECKO(1554) | [Child 1776: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 4 (7f4269dca3c0) [pid = 1776] [serial = 4] [outer = 0]
[task 2021-05-11T02:35:53.438Z] 02:35:53 INFO - GECKO(1554) | [Child 1776: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 5 (7f4269542400) [pid = 1776] [serial = 5] [outer = 7f4269dca3c0]
[task 2021-05-11T02:35:53.493Z] 02:35:53 INFO - GECKO(1554) | [Child 1776, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80040111 (NS_ERROR_NOT_AVAILABLE): file /builds/worker/checkouts/gecko/caps/BasePrincipal.cpp:1349
[task 2021-05-11T02:35:53.538Z] 02:35:53 INFO - Leaving test bound contextmenu_back

Dave, can you please take a look ?

Comment 15

[Intermittent Failures Robot]

27 failures in 3061 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

This is the #45 most frequent failure this week.

Repository breakdown:

• autoland: 20
• mozilla-central: 7

Platform and build breakdown:

• linux1804-64: 23
  • debug: 23
• linux1804-64-shippable: 4
  • opt: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-05-17&endday=2021-05-23&tree=all

Comment 16

[Intermittent Failures Robot]

8 failures in 2908 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

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

Platform and build breakdown:

• linux1804-64: 8
  • debug: 8

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1696110&startday=2021-05-24&endday=2021-05-30&tree=all

Comment 17

[Dave Townsend [:mossop]]

Can you take a look at this Neil?

Comment 18

[Neil Deakin]

This test doesn't seem to have failed for a while. Since it looks like it only failed with fission enabled, I suspect some session history or bfcache change has fixed this problem. Going to close this bug for now.