1421150 - Intermittent dom/events/test/test_DataTransferItemList.html | TypeError: _EU_maybeWrap(...) is null - Should not throw any errors

Status: REOPENED

(Core :: DOM: Events, defect, P2)

Description

[Treeherder Bug Filer]

Filed by: philringnalda [at] gmail.com

https://treeherder.mozilla.org/logviewer.html#?job_id=148052550&repo=mozilla-inbound

https://queue.taskcluster.net/v1/task/YJZz3XMCQdqOJ5ft0ftuyQ/runs/0/artifacts/public/logs/live_backing.log

Comment 1

[Intermittent Failures Robot]

1 failures in 792 pushes (0.001 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* mozilla-inbound: 1

Platform breakdown:
* linux64-stylo-disabled: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2017-11-27&endday=2017-12-03&tree=all

Comment 2

[Intermittent Failures Robot]

1 failures in 889 pushes (0.001 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* mozilla-inbound: 1

Platform breakdown:
* linux64-stylo-disabled: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2017-12-04&endday=2017-12-10&tree=all

Comment 3

[Intermittent Failures Robot]

1 failures in 462 pushes (0.002 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* try: 1

Platform breakdown:
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-01-01&endday=2018-01-07&tree=all

Comment 4

[Intermittent Failures Robot]

1 failures in 788 pushes (0.001 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* try: 1

Platform breakdown:
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-01-08&endday=2018-01-14&tree=all

Comment 5

[Intermittent Failures Robot]

1 failures in 735 pushes (0.001 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* autoland: 1

Platform breakdown:
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-01-29&endday=2018-02-04&tree=all

Comment 6

[Intermittent Failures Robot]

2 failures in 702 pushes (0.003 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* mozilla-inbound: 1
* autoland: 1

Platform breakdown:
* linux64: 2

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-05&endday=2018-02-11&tree=all

Comment 7

[Andrew Osmond [:aosmond] (he/him)]

From what I can tell, this is caused by images decoding asynchronously. Usually it comes back soon enough, but sometimes it doesn't and we end up trying to scroll the full frame, rather than the underlying image. We can fix this easily if bug 1416328 was implemented. In turn, I have an incentive to see this fixed so I can land bug 1436247 which was backed out due to slightly changing the timing for this bug and permafailing it.

Comment 8

[Intermittent Failures Robot]

23 failures in 685 pushes (0.034 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* mozilla-inbound: 10
* mozilla-central: 7
* autoland: 6

Platform breakdown:
* linux32-stylo-disabled: 8
* linux64-stylo-disabled: 5
* linux64: 5
* linux32: 5

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-12&endday=2018-02-18&tree=all

Comment 9

[Intermittent Failures Robot]

20 failures in 126 pushes (0.159 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* autoland: 13
* mozilla-inbound: 7

Platform breakdown:
* linux32-stylo-disabled: 16
* linux32: 3
* linux64: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-20&endday=2018-02-20&tree=all

Comment 10

[Intermittent Failures Robot]

17 failures in 124 pushes (0.137 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* autoland: 11
* mozilla-inbound: 5
* mozilla-central: 1

Platform breakdown:
* linux64: 8
* linux64-stylo-disabled: 5
* linux32-stylo-disabled: 3
* linux32: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-21&endday=2018-02-21&tree=all

Comment 11

[Intermittent Failures Robot]

18 failures in 151 pushes (0.119 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* autoland: 9
* mozilla-inbound: 8
* mozilla-central: 1

Platform breakdown:
* linux32-stylo-disabled: 9
* linux32: 4
* linux64-stylo-disabled: 3
* linux64: 2

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-22&endday=2018-02-22&tree=all

Comment 12

[Intermittent Failures Robot]

41 failures in 135 pushes (0.304 failures/push) were associated with this bug yesterday.    

Repository breakdown:
* autoland: 16
* mozilla-inbound: 15
* try: 6
* mozilla-central: 4

Platform breakdown:
* linux32-stylo-disabled: 18
* linux64-stylo-disabled: 13
* linux64: 7
* linux32: 2
* linux32-nightly: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-23&endday=2018-02-23&tree=all

Comment 13

[Narcis Beleuzu [:NarcisB]]

Test is failing frequently on Linux. (~127 failures in the last 7days)

Here is a recent log: 
https://treeherder.mozilla.org/logviewer.html#?repo=mozilla-inbound&job_id=164083783&lineNumber=2684

[task 2018-02-24T02:07:42.371Z] 02:07:42     INFO - TEST-START | dom/events/test/test_DataTransferItemList.html
[task 2018-02-24T02:07:43.409Z] 02:07:43     INFO - TEST-INFO | started process screentopng
[task 2018-02-24T02:07:43.842Z] 02:07:43     INFO - TEST-INFO | screentopng: exit 0
[task 2018-02-24T02:07:43.842Z] 02:07:43     INFO - Buffered messages logged at 02:07:43
[task 2018-02-24T02:07:43.842Z] 02:07:43     INFO - SpawnTask.js | Entering test 
[task 2018-02-24T02:07:43.842Z] 02:07:43     INFO - Buffered messages finished
[task 2018-02-24T02:07:43.844Z] 02:07:43     INFO - TEST-UNEXPECTED-FAIL | dom/events/test/test_DataTransferItemList.html | TypeError: _EU_maybeWrap(...) is null - Should not throw any errors
[task 2018-02-24T02:07:43.845Z] 02:07:43     INFO - createDragEventObject@chrome://mochikit/content/tests/SimpleTest/EventUtils.js:2428:38
[task 2018-02-24T02:07:43.846Z] 02:07:43     INFO - synthesizeDragOver@chrome://mochikit/content/tests/SimpleTest/EventUtils.js:2517:15
[task 2018-02-24T02:07:43.847Z] 02:07:43     INFO - synthesizeDrop@chrome://mochikit/content/tests/SimpleTest/EventUtils.js:2596:34
[task 2018-02-24T02:07:43.848Z] 02:07:43     INFO - @chrome://mochitests/content/chrome/dom/events/test/test_DataTransferItemList.html:204:5
[task 2018-02-24T02:07:43.849Z] 02:07:43     INFO - async*add_task/</<@chrome://mochikit/content/tests/SimpleTest/SpawnTask.js:298:21
[task 2018-02-24T02:07:43.850Z] 02:07:43     INFO - onFulfilled@chrome://mochikit/content/tests/SimpleTest/SpawnTask.js:69:15
[task 2018-02-24T02:07:43.851Z] 02:07:43     INFO - co/<@chrome://mochikit/content/tests/SimpleTest/SpawnTask.js:58:5
[task 2018-02-24T02:07:43.852Z] 02:07:43     INFO - co@chrome://mochikit/content/tests/SimpleTest/SpawnTask.js:54:10
[task 2018-02-24T02:07:43.853Z] 02:07:43     INFO - setTimeout handler*SimpleTest_setTimeoutShim@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:676:12
[task 2018-02-24T02:07:43.854Z] 02:07:43     INFO - add_task@chrome://mochikit/content/tests/SimpleTest/SpawnTask.js:271:7
[task 2018-02-24T02:07:43.854Z] 02:07:43     INFO - @chrome://mochitests/content/chrome/dom/events/test/test_DataTransferItemList.html:27:3
[task 2018-02-24T02:07:43.855Z] 02:07:43     INFO - GECKO(1981) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2018-02-24T02:07:43.857Z] 02:07:43     INFO - GECKO(1981) | MEMORY STAT | vsize 825MB | residentFast 257MB | heapAllocated 102MB
[task 2018-02-24T02:07:43.858Z] 02:07:43     INFO - TEST-OK | dom/events/test/test_DataTransferItemList.html | took 1054ms


:overholt, can you please take a look?

Comment 14

[Intermittent Failures Robot]

124 failures in 675 pushes (0.184 failures/push) were associated with this bug in the last 7 days. 

This is the #3 most frequent failure this week.   

** This test has failed more than 150 times in the last 21 days. It should be disabled until it can be fixed. ** 

Repository breakdown:
* autoland: 59
* mozilla-inbound: 43
* mozilla-central: 13
* try: 9

Platform breakdown:
* linux32-stylo-disabled: 57
* linux64-stylo-disabled: 28
* linux64: 24
* linux32: 12
* linux32-nightly: 2
* linux64-nightly: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-19&endday=2018-02-25&tree=all

Comment 15

[Cosmin Sabou [:CosminS]]

Attachment: Disable on Linux !debug

Hello! Joel, can you please review this patch? I didn't disabled it on debug because the failures I saw in Orange factor were only on try and the one on inbound was missclassified. 
There was also a file named chrome.ini where there was this test name in it. Should I have edited that ini file or it's ok if I created one with this test name? And also what happens with the new file we created? It gets added to the remote repo when the patch is landed? Thanks.

Comment 16

[Joel Maher ( :jmaher ) (UTC -8)]

Comment on attachment 8953915 [details] [diff] [review]
Disable on Linux !debug

Review of attachment 8953915 [details] [diff] [review]:
-----------------------------------------------------------------

sorry for the confusion here- this would work great if this were a web-platform-test (testing/web-platform/tests/...), but in this case it is a mochitest chrome (hence the chrome.ini), so you can modify the existing chrome.ini file.  In general when you see mochitest.ini, chrome.ini, browser.ini, or xpcshell.ini- you modify in the existing file (make note that we have a lot of other variations like browser2.ini, or mochitest-oop.ini, etc.)

Comment 17

[Cosmin Sabou [:CosminS]]

Attachment: Disable on Linux !debug

Oh, initially that was what I thought but eventually did it another .ini. No worries, I've now modified chrome.ini with those changes. Thanks.

Comment 18

[Joel Maher ( :jmaher ) (UTC -8)]

Comment on attachment 8953976 [details] [diff] [review]
Disable on Linux !debug

Review of attachment 8953976 [details] [diff] [review]:
-----------------------------------------------------------------

looks great

Comment 19

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/5684c810fb4b
Disable dom/events/test/test_DataTransferItemList.html for frequent failures. r=jmaher

Comment 20

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/723b390519de
Fix the syntax for disabling dom/events/test/test_DataTransferItemList.html on a CLOSED TREE

Comment 21

[Andrew Overholt [:overholt]]

I think Andrew's working on this given comment 7.

Comment 22

[Tiberius Oros[:tiberius_oros]]

https://hg.mozilla.org/mozilla-central/rev/5684c810fb4b
https://hg.mozilla.org/mozilla-central/rev/723b390519de

Comment 23

[Intermittent Failures Robot]

12 failures in 831 pushes (0.014 failures/push) were associated with this bug in the last 7 days.    

Repository breakdown:
* autoland: 10
* mozilla-inbound: 1
* mozilla-central: 1

Platform breakdown:
* linux32-stylo-disabled: 7
* linux64: 4
* linux64-stylo-disabled: 1

For more details, see:
https://brasstacks.mozilla.com/orangefactor/?display=Bug&bugid=1421150&startday=2018-02-26&endday=2018-03-04&tree=all