1640904 - Perma devtools/server/tests/browser/browser_actor_error.js | Uncaught exception - at resource://devtools/shared/protocol/Front.js:323 when Gecko 78 merges to Beta on 2020-06-01

Status: VERIFIED FIXED

(DevTools :: General, defect)

Description

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

central-as-beta simulation: https://treeherder.mozilla.org/#/jobs?repo=try&group_state=expanded&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel%2Crunnable&revision=90fdf63cba3395f601470b7d26bb8fc39a323208&selectedTaskRun=V9472jcGT9qE0IKUtHwkKw-0

Failure log: https://treeherder.mozilla.org/logviewer.html#?job_id=303764702&repo=try

[task 2020-05-26T13:22:21.603Z] 13:22:21 INFO - TEST-PASS | devtools/server/tests/browser/browser_actor_error.js | has a TestErrorsFront instance -
[task 2020-05-26T13:22:21.604Z] 13:22:21 INFO - TEST-PASS | devtools/server/tests/browser/browser_actor_error.js | -
[task 2020-05-26T13:22:21.604Z] 13:22:21 INFO - Buffered messages finished
[task 2020-05-26T13:22:21.604Z] 13:22:21 INFO - TEST-UNEXPECTED-FAIL | devtools/server/tests/browser/browser_actor_error.js | Uncaught exception - at resource://devtools/shared/protocol/Front.js:323 - Error: Protocol error (TypeError): this.a is undefined from: server0.conn12.testErrorsActor8 (chrome://mochitests/content/browser/devtools/server/tests/browser/test-errors-actor.js:39:5)
[task 2020-05-26T13:22:21.605Z] 13:22:21 INFO - Stack trace:
[task 2020-05-26T13:22:21.605Z] 13:22:21 INFO - onPacket/<@resource://devtools/shared/protocol/Front.js:323:31
[task 2020-05-26T13:22:21.606Z] 13:22:21 INFO - callFunctionWithAsyncStack@resource://devtools/shared/platform/stack.js:61:13
[task 2020-05-26T13:22:21.606Z] 13:22:21 INFO - onPacket@resource://devtools/shared/protocol/Front.js:308:31
[task 2020-05-26T13:22:21.607Z] 13:22:21 INFO - onPacket@resource://devtools/client/devtools-client.js:493:13
[task 2020-05-26T13:22:21.608Z] 13:22:21 INFO - send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2020-05-26T13:22:21.608Z] 13:22:21 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2020-05-26T13:22:21.608Z] 13:22:21 INFO - callFunctionWithAsyncStack@resource://devtools/shared/platform/stack.js:61:13
[task 2020-05-26T13:22:21.608Z] 13:22:21 INFO - executor@resource://devtools/shared/DevToolsUtils.js:49:35
[task 2020-05-26T13:22:21.609Z] 13:22:21 INFO - exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2020-05-26T13:22:21.609Z] 13:22:21 INFO - Leaving test bound test_protocoljs_actor
[task 2020-05-26T13:22:21.609Z] 13:22:21 INFO - Not taking screenshot here: see the one that was previously logged
[task 2020-05-26T13:22:21.609Z] 13:22:21 INFO - TEST-UNEXPECTED-FAIL | devtools/server/tests/browser/browser_actor_error.js | The main process DevToolsServer has no pending connection when the test ends -

Comment 1

[Julian Descottes [:jdescottes]]

Attachment: Bug 1640904 - Force property_error_message_fix in browser_actor_error.js

The exception used in this test has different formats depending on the channel.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1a878a7a1b14
Force property_error_message_fix in browser_actor_error.js r=nchevobbe

Comment 3

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/1a878a7a1b14

Comment 4

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

The issue still occurs with the patch applied:
https://treeherder.mozilla.org/#/jobs?repo=try&group_state=expanded&selectedTaskRun=BRHD05IrTNWZ3-yVp8uaMQ-0&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel%2Crunnable&revision=ffa1600c7f9ca624b643f91b373f8f6c4a92c642&searchStr=devtools

Comment 5

[Julian Descottes [:jdescottes]]

Looks like we can't flip the preference at runtime...

Comment 6

[Julian Descottes [:jdescottes]]

Attachment: Bug 1640904 - Do not assert specific error message in browser_actor_error.js

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b30bdedb0bdf
Do not assert specific error message in browser_actor_error.js r=nchevobbe

Comment 8

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/b30bdedb0bdf

Comment 9

[Andreea Pavel [:apavel]]

Verified fixed in latest beta sim: https://treeherder.mozilla.org/#/jobs?repo=try&group_state=expanded&selectedTaskRun=T0Zefr_dQqyCdiHOlm9alA-0&resultStatus=success%2Ctestfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel%2Crunnable&revision=e0e9d067faca2cbe2daa85699a46e92a529263c9&searchStr=devtools

Comment 10

[Intermittent Failures Robot]

1 failures in 5458 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1

Platform breakdown:

• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1640904&startday=2020-05-25&endday=2020-05-31&tree=all