1516862 - Intermittent toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html | expected error message received in onErrorOccurred - Expected: NS_ERROR_UNKNOWN_HOST, Actual: NS_ERROR_NET_ON_RESOLVED

Status: RESOLVED FIXED

(WebExtensions :: General, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: csabou [at] mozilla.com

https://treeherder.mozilla.org/logviewer.html#?job_id=219287649&repo=mozilla-central

https://queue.taskcluster.net/v1/task/FEIZ6QmcRaSMNjgaACoK-A/runs/0/artifacts/public/logs/live_backing.log

02:41:55     INFO - TEST-PASS | toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html | correct requestId - Expected: 352, Actual: 352 
02:41:55     INFO - TEST-PASS | toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html | correct tabId - Expected: 1, Actual: 1 
02:41:55     INFO - Buffered messages finished
02:41:55     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html | expected error message received in onErrorOccurred - Expected: NS_ERROR_UNKNOWN_HOST, Actual: NS_ERROR_NET_ON_RESOLVED 
02:41:55     INFO -     SimpleTest.ok@SimpleTest/SimpleTest.js:275:7
02:41:55     INFO -     testHandler@SimpleTest/ExtensionTestUtils.js:59:7
02:41:55     INFO -     testResult@SimpleTest/ExtensionTestUtils.js:73:7
02:41:55     INFO -     Async*ExtensionTestUtils.loadExtension@SimpleTest/ExtensionTestUtils.js:105:19
02:41:55     INFO -     makeExtension@toolkit/components/extensions/test/mochitest/head_webrequest.js:314:10
02:41:55     INFO -     setup@toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html:46:15
02:41:55     INFO -     async*nextTick/<@SimpleTest/AddTask.js:70:34
02:41:55     INFO -     async*nextTick@SimpleTest/AddTask.js:44:10
02:41:55     INFO -     setTimeout handler*SimpleTest_setTimeoutShim@SimpleTest/SimpleTest.js:684:12
02:41:55     INFO -     nextTick@SimpleTest/AddTask.js:40:11
02:41:55     INFO -     setTimeout handler*SimpleTest_setTimeoutShim@SimpleTest/SimpleTest.js:684:12
02:41:55     INFO -     add_task@SimpleTest/AddTask.js:30:7
02:41:55     INFO -     @toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html:32:1
02:41:55     INFO - onErrorOccurred 352 https://nonresolvablehostname.invalid/badrobot
02:41:55     INFO - Not taking screenshot here: see the one that was previously logged
02:41:55     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html | received onErrorOccurred 
02:41:55     INFO -     SimpleTest.ok@SimpleTest/SimpleTest.js:275:7
02:41:55     INFO -     testHandler@SimpleTest/ExtensionTestUtils.js:63:7
02:41:55     INFO -     testResult@SimpleTest/ExtensionTestUtils.js:73:7
02:41:55     INFO -     Async*ExtensionTestUtils.loadExtension@SimpleTest/ExtensionTestUtils.js:105:19
02:41:55     INFO -     makeExtension@toolkit/components/extensions/test/mochitest/head_webrequest.js:314:10
02:41:55     INFO -     setup@toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html:46:15
02:41:55     INFO -     async*nextTick/<@SimpleTest/AddTask.js:70:34
02:41:55     INFO -     async*nextTick@SimpleTest/AddTask.js:44:10
02:41:55     INFO -     setTimeout handler*SimpleTest_setTimeoutShim@SimpleTest/SimpleTest.js:684:12
02:41:55     INFO -     nextTick@SimpleTest/AddTask.js:40:11
02:41:55     INFO -     setTimeout handler*SimpleTest_setTimeoutShim@SimpleTest/SimpleTest.js:684:12
02:41:55     INFO -     add_task@SimpleTest/AddTask.js:30:7
02:41:55     INFO -     @toolkit/components/extensions/test/mochitest/test_ext_webrequest_basic.html:32:1

Comment 1

[Intermittent Failures Robot]

2 failures in 1008 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:
* try: 1
* mozilla-central: 1

Platform breakdown:
* osx-10-10: 1
* macosx64-devedition: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2018-12-24&endday=2018-12-30&tree=all

Comment 2

[Intermittent Failures Robot]

8 failures in 1668 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:
* mozilla-inbound: 1
* autoland: 5
* mozilla-central: 2

Platform breakdown:
* osx-10-10: 3
* linux64-qr: 1
* windows7-32: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2018-12-31&endday=2019-01-06&tree=all

Comment 3

[Intermittent Failures Robot]

25 failures in 2627 pushes (0.01 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 13
• mozilla-central: 6
• mozilla-inbound: 6

Platform breakdown:

• windows7-32: 5
• linux64-qr: 1
• linux64: 1
• osx-10-10: 18

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-01-07&endday=2019-01-13&tree=all

Comment 4

[Intermittent Failures Robot]

17 failures in 2378 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 7
• mozilla-beta: 1
• try: 2
• mozilla-inbound: 6
• mozilla-central: 1

Platform breakdown:

• linux64-qr: 2
• windows7-32-devedition: 1
• linux32: 2
• osx-10-10: 10
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-01-14&endday=2019-01-20&tree=all

Comment 5

[Intermittent Failures Robot]

20 failures in 2383 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• mozilla-central: 4
• mozilla-inbound: 8
• autoland: 7

Platform breakdown:

• linux64: 1
• osx-10-10: 12
• windows7-32: 7

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-01-21&endday=2019-01-27&tree=all

Comment 6

[Intermittent Failures Robot]

14 failures in 2628 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• mozilla-inbound: 5
• try: 1
• mozilla-beta: 1
• mozilla-central: 1

Platform breakdown:

• linux64-qr: 1
• linux32: 1
• osx-10-10: 10
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-01-28&endday=2019-02-03&tree=all

Comment 7

[Intermittent Failures Robot]

28 failures in 2658 pushes (0.011 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 15
• try: 4
• mozilla-inbound: 8
• mozilla-beta: 1

Platform breakdown:

• osx-10-10: 10
• linux64-qr: 2
• windows7-32: 12
• linux64: 2
• macosx64-nightly: 1
• linux64-nightly: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-02-04&endday=2019-02-10&tree=all

Comment 8

[Intermittent Failures Robot]

25 failures in 2832 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 18
• mozilla-central: 5
• mozilla-inbound: 2

Platform breakdown:

• windows7-32: 12
• osx-10-10: 11
• macosx64-nightly: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-02-11&endday=2019-02-17&tree=all

Comment 9

[Intermittent Failures Robot]

22 failures in 2602 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 19
• try: 2
• mozilla-inbound: 1

Platform breakdown:

• osx-10-10: 10
• linux64: 2
• windows7-32: 9
• macosx64-devedition: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-02-18&endday=2019-02-24&tree=all

Comment 10

[Intermittent Failures Robot]

32 failures in 2981 pushes (0.011 failures/push) were associated with this bug in the last 7 days.

This is the #48 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: 22
• mozilla-inbound: 6
• mozilla-central: 2
• try: 2

Platform breakdown:

• windows7-32: 12
• osx-10-10: 15
• linux32: 1
• linux64: 2
• linux64-pgo-qr: 1
• windows10-64-pgo-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-02-25&endday=2019-03-03&tree=all

Comment 11

[Luca Greco [:rpl] [:luca] [:lgreco]]

Attachment: Bug 1516862 - Fix test_ext_webrequest_basic intermittency while testing onError events fired on hostname resolving error. r?mixedpuppy!

When the dns resolution for an url's hostname fails, the webRequest API seems to be
receiving (from time to time but more often on macos and windows) more then one call
to the HttpObserverManager.observeActivity method for the activityType

nsISocketTransport.STATUS_RESOLVING and nsISocketTransport.STATUS_RESOLVED

while channel wrapper errorString property is still null.

The observeActvity method goal seems to fire fallback WebRequest errors for error conditions
that are not fired as ChannelWrapper error events, but the "NS_ERROR_UNKNOWN_HOST" error
is also being fired right after the fallback webRequest error event fired as
"NS_ERROR_NET_ON_RESOLVED" (or "NS_ERROR_NET_ON_RESOLVING").

This behavior consistently triggers the two intermittent failures on the test
test_ext_webrequest_basic.html while executing the test_webRequest_frames
task

"expected error message received in onErrorOccurred - Expected: NS_ERROR_UNKNOWN_HOST, Actual: NS_ERROR_NET_ON_RESOLVED"

(when the fallback NS_ERROR_NET_ON_RESOLVED is fired first)

and then

"received onErrorOccurred"

(because the "NS_ERROR_UNKNOWN_HOST" error is also being fired
right after the fallback error message).

Comment 12

[Intermittent Failures Robot]

22 failures in 2818 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 14
• mozilla-inbound: 5
• mozilla-central: 1
• try: 1
• mozilla-beta: 1

Platform breakdown:

• osx-10-10: 8
• windows7-32: 10
• linux64-qr: 1
• linux64: 1
• android-em-4-3-armv7-api16: 1
• macosx64-nightly: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-03-04&endday=2019-03-10&tree=all

Comment 13

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/32112b7c202e
Fix test_ext_webrequest_basic intermittency while testing onError events fired on hostname resolving error. r=mixedpuppy

Comment 14

[Razvan Maries]

https://hg.mozilla.org/mozilla-central/rev/32112b7c202e

Comment 15

[Intermittent Failures Robot]

25 failures in 2771 pushes (0.009 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 17
• mozilla-central: 4
• mozilla-esr60: 2
• mozilla-inbound: 1
• mozilla-release: 1

Platform breakdown:

• osx-10-10: 13
• windows7-32: 10
• linux64-pgo-qr: 1
• linux64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1516862&startday=2019-03-11&endday=2019-03-17&tree=all

Comment 16

[Madalin Cotetiu]

From my understanding this issue is related to the addon tests. Is there any need of manual QA here? If not can you please mark it as "qe-verify- "

Comment 17

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-esr60/rev/843a3e6725f8