1726238 - Intermittent devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | A promise chain failed to handle a rejection: can't access property "getFrontByID", ctx.conn is undefined - stack: read@resource://devtools/shared/protocol/types

Status: RESOLVED FIXED

(DevTools :: Framework, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: cbrindusan [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=348725502&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WK1ZfgDmTE2VLfRN-P1jXg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2021-08-17T20:16:04.997Z] 20:16:04     INFO - TEST-START | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js
[task 2021-08-17T20:16:07.777Z] 20:16:07     INFO - GECKO(6804) | console.error: "Error while calling actor 'pagestyle's method 'getApplied'" "can't access property \"rawNode\", node is null"
[task 2021-08-17T20:16:07.790Z] 20:16:07     INFO - GECKO(6804) | console.error: (new TypeError("can't access property \"rawNode\", node is null", "resource://devtools/server/actors/page-style.js", 570))
[task 2021-08-17T20:16:07.900Z] 20:16:07     INFO - GECKO(6804) | console.error: (new Error("Protocol error (noSuchActor): No such actor for ID: server0.conn16.windowGlobal15032385541/domnode28 from: server0.conn16.windowGlobal15032385541/domnode28", "resource://devtools/shared/protocol/Front.js", 362))
[task 2021-08-17T20:16:08.163Z] 20:16:08     INFO - GECKO(6804) | console.error:
[task 2021-08-17T20:16:08.178Z] 20:16:08     INFO - GECKO(6804) |   InvalidStateError: JSWindowActorChild.sendAsyncMessage: JSWindowActorChild cannot send at the moment: sendPacket@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:431:10
[task 2021-08-17T20:16:08.179Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/js-window-actor-transport.js:53:25
[task 2021-08-17T20:16:08.180Z] 20:16:08     INFO - GECKO(6804) | _getOrCreateActor@resource://devtools/server/devtools-server-connection.js:217:22
[task 2021-08-17T20:16:08.180Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/server/devtools-server-connection.js:362:24
[task 2021-08-17T20:16:08.181Z] 20:16:08     INFO - GECKO(6804) | _onPacketReceived@resource://devtools/shared/transport/js-window-actor-transport.js:48:18
[task 2021-08-17T20:16:08.181Z] 20:16:08     INFO - GECKO(6804) | emit@resource://gre/modules/EventEmitter.jsm:160:20
[task 2021-08-17T20:16:08.182Z] 20:16:08     INFO - GECKO(6804) | receiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:507:21
[task 2021-08-17T20:16:08.182Z] 20:16:08     INFO - GECKO(6804) | JSActor query*sendPacket@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:199:10
[task 2021-08-17T20:16:08.182Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/js-window-actor-transport.js:53:25
[task 2021-08-17T20:16:08.183Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/server/devtools-server-connection.js:355:21
[task 2021-08-17T20:16:08.183Z] 20:16:08     INFO - GECKO(6804) | send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2021-08-17T20:16:08.184Z] 20:16:08     INFO - GECKO(6804) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2021-08-17T20:16:08.184Z] 20:16:08     INFO - GECKO(6804) | DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21
[task 2021-08-17T20:16:08.185Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2021-08-17T20:16:08.185Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/protocol/Front.js:273:30
[task 2021-08-17T20:16:08.186Z] 20:16:08     INFO - GECKO(6804) | request@resource://devtools/shared/protocol/Front.js:291:10
[task 2021-08-17T20:16:08.186Z] 20:16:08     INFO - GECKO(6804) | generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19
[task 2021-08-17T20:16:08.187Z] 20:16:08     INFO - GECKO(6804) | getEventListenerBreakpointTypes@resource://devtools/client/debugger/src/client/firefox/commands.js:365:45
[task 2021-08-17T20:16:08.187Z] 20:16:08     INFO - GECKO(6804) | getEventListenerBreakpointTypes/<@resource://devtools/client/debugger/src/actions/event-listeners.js:101:37
[task 2021-08-17T20:16:08.188Z] 20:16:08     INFO - GECKO(6804) | thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45
[task 2021-08-17T20:16:08.188Z] 20:16:08     INFO - GECKO(6804) | bindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:520:12
[task 2021-08-17T20:16:08.189Z] 20:16:08     INFO - GECKO(6804) | onTargetAvailable@resource://devtools/client/debugger/src/client/firefox.js:144:11
[task 2021-08-17T20:16:08.189Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.190Z] 20:16:08     INFO - GECKO(6804) | emitAsync@resource://devtools/shared/event-emitter.js:194:25
[task 2021-08-17T20:16:08.190Z] 20:16:08     INFO - GECKO(6804) | emitAsync@resource://devtools/shared/event-emitter.js:346:25
[task 2021-08-17T20:16:08.190Z] 20:16:08     INFO - GECKO(6804) | _onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33
[task 2021-08-17T20:16:08.191Z] 20:16:08     INFO - GECKO(6804) | Async*_emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.191Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.192Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.192Z] 20:16:08     INFO - GECKO(6804) | _onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10
[task 2021-08-17T20:16:08.193Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.193Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.193Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.194Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/shared/protocol/Front.js:333:13
[task 2021-08-17T20:16:08.194Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/client/devtools-client.js:482:13[task 2021-08-17T20:16:08.195Z] 20:16:08     INFO - GECKO(6804) | send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2021-08-17T20:16:08.195Z] 20:16:08     INFO - GECKO(6804) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2021-08-17T20:16:08.196Z] 20:16:08     INFO - GECKO(6804) | DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21
[task 2021-08-17T20:16:08.196Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2021-08-17T20:16:08.197Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/server/devtools-server-connection.js:99:20
[task 2021-08-17T20:16:08.197Z] 20:16:08     INFO - GECKO(6804) | _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15
[task 2021-08-17T20:16:08.197Z] 20:16:08     INFO - GECKO(6804) | initialize/<@resource://devtools/shared/protocol/Actor.js:46:16
[task 2021-08-17T20:16:08.198Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.198Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.199Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.199Z] 20:16:08     INFO - GECKO(6804) | notifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10
[task 2021-08-17T20:16:08.199Z] 20:16:08     INFO - GECKO(6804) | connectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13
[task 2021-08-17T20:16:08.200Z] 20:16:08     INFO - GECKO(6804) | receiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21
[task 2021-08-17T20:16:08.200Z] 20:16:08     INFO - GECKO(6804) | JSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10
[task 2021-08-17T20:16:08.201Z] 20:16:08     INFO - GECKO(6804) | instantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14
[task 2021-08-17T20:16:08.201Z] 20:16:08     INFO - GECKO(6804) | handleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12
[task 2021-08-17T20:16:08.229Z] 20:16:08     INFO - GECKO(6804) | console.error: "Error while listing frames" (new Error("Connection closed, pending request to server0.conn16.windowGlobal15032385542/frameTarget1, type listFrames failed\n\nRequest stack:\nrequest@resource://devtools/shared/protocol/Front.js:289:14\ngenerateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19\n_listFrames@resource://devtools/client/framework/toolbox.js:3159:44\n_onTargetAvailable@resource://devtools/client/framework/toolbox.js:715:18\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemitAsync@resource://devtools/shared/event-emitter.js:194:25\nemitAsync@resource://devtools/shared/event-emitter.js:346:25\n_onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\n_onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nonPacket@resource://devtools/shared/protocol/Front.js:333:13\nonPacket@resource://devtools/client/devtools-client.js:482:13\nsend/<@resource://devtools/shared/transport/local-transport.js:68:25\nexports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22\nDevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21\nsend@resource://devtools/shared/transport/local-transport.js:56:21\nsend@resource://devtools/server/devtools-server-connection.js:99:20\n_sendEvent@resource://devtools/shared/protocol/Actor.js:72:15\ninitialize/<@resource://devtools/shared/protocol/Actor.js:46:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nnotifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10\nconnectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13\nreceiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21\nJSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10\ninstantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14\nhandleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12\n", "resource://devtools/shared/protocol/Front.js", 103))
[task 2021-08-17T20:16:08.239Z] 20:16:08     INFO - GECKO(6804) | console.log: (new Error("Connection closed, pending request to server0.conn16.windowGlobal15032385542/thread22, type setActiveEventBreakpoints failed\n\nRequest stack:\nrequest@resource://devtools/shared/protocol/Front.js:289:14\ngenerateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19\nsetEventListenerBreakpoints/<@resource://devtools/client/debugger/src/client/firefox/commands.js:357:41\nforEachThread/promises<@resource://devtools/client/debugger/src/client/firefox/commands.js:106:16\nforEachThread@resource://devtools/client/debugger/src/client/firefox/commands.js:104:66\nsetEventListenerBreakpoints@resource://devtools/client/debugger/src/client/firefox/commands.js:357:10\nupdateBreakpoints@resource://devtools/client/debugger/src/actions/event-listeners.js:25:16\naddEventListenerBreakpoints/<@resource://devtools/client/debugger/src/actions/event-listeners.js:43:11\nasync*thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45\nbindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:520:12\nonTargetAvailable@resource://devtools/client/debugger/src/client/firefox.js:147:11\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemitAsync@resource://devtools/shared/event-emitter.js:194:25\nemitAsync@resource://devtools/shared/event-emitter.js:346:25\n_onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\n_onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nonPacket@resource://devtools/shared/protocol/Front.js:333:13\nonPacket@resource://devtools/client/devtools-client.js:482:13\nsend/<@resource://devtools/shared/transport/local-transport.js:68:25\nexports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22\nDevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21\nsend@resource://devtools/shared/transport/local-transport.js:56:21\nsend@resource://devtools/server/devtools-server-connection.js:99:20\n_sendEvent@resource://devtools/shared/protocol/Actor.js:72:15\ninitialize/<@resource://devtools/shared/protocol/Actor.js:46:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nnotifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10\nconnectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13\nreceiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21\nJSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10\ninstantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14\nhandleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12\n", "resource://devtools/shared/protocol/Front.js", 103))
[task 2021-08-17T20:16:08.243Z] 20:16:08     INFO - GECKO(6804) | console.log: (new Error("Connection closed, pending request to server0.conn16.windowGlobal15032385542/thread22, type setActiveEventBreakpoints failed\n\nRequest stack:\nrequest@resource://devtools/shared/protocol/Front.js:289:14\ngenerateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19\nsetEventListenerBreakpoints/<@resource://devtools/client/debugger/src/client/firefox/commands.js:357:41\nforEachThread/promises<@resource://devtools/client/debugger/src/client/firefox/commands.js:106:16\nforEachThread@resource://devtools/client/debugger/src/client/firefox/commands.js:104:66\nsetEventListenerBreakpoints@resource://devtools/client/debugger/src/client/firefox/commands.js:357:10\nupdateBreakpoints@resource://devtools/client/debugger/src/actions/event-listeners.js:25:16\naddEventListenerBreakpoints/<@resource://devtools/client/debugger/src/actions/event-listeners.js:43:11\nasync*thunk/</</<@resource://devtools/client/debugger/src/actions/utils/middleware/thunk.js:29:45\nbindActionCreator/<@resource://devtools/client/shared/vendor/redux.js:520:12\nonTargetAvailable@resource://devtools/client/debugger/src/client/firefox.js:147:11\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemitAsync@resource://devtools/shared/event-emitter.js:194:25\nemitAsync@resource://devtools/shared/event-emitter.js:346:25\n_onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\n_onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nonPacket@resource://devtools/shared/protocol/Front.js:333:13\nonPacket@resource://devtools/client/devtools-client.js:482:13\nsend/<@resource://devtools/shared/transport/local-transport.js:68:25\nexports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22\nDevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21\nsend@resource://devtools/shared/transport/local-transport.js:56:21\nsend@resource://devtools/server/devtools-server-connection.js:99:20\n_sendEvent@resource://devtools/shared/protocol/Actor.js:72:15\ninitialize/<@resource://devtools/shared/protocol/Actor.js:46:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nnotifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10\nconnectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13\nreceiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21\nJSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10\ninstantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14\nhandleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12\n", "resource://devtools/shared/protocol/Front.js", 103))
[task 2021-08-17T20:16:08.247Z] 20:16:08     INFO - GECKO(6804) | console.warn: "Error while destroying front:" "inspector" (new Error("Connection closed, pending request to server0.conn16.windowGlobal15032385542/inspectorActor4, type getWalker failed\n\nRequest stack:\nrequest@resource://devtools/shared/protocol/Front.js:289:14\ngenerateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19\n_getWalker@resource://devtools/client/fronts/inspector.js:81:30\ninitialize@resource://devtools/client/fronts/inspector.js:70:12\nasync*manage@resource://devtools/shared/protocol/Front.js:143:19\ngetFront@resource://devtools/shared/protocol/types.js:557:18\ngetFront@resource://devtools/client/fronts/targets/target-mixin.js:321:15\ninitInspectorFront@resource://devtools/client/inspector/inspector.js:411:45\n_onTargetAvailable@resource://devtools/client/inspector/inspector.js:264:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemitAsync@resource://devtools/shared/event-emitter.js:194:25\nemitAsync@resource://devtools/shared/event-emitter.js:346:25\n_onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\n_onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nonPacket@resource://devtools/shared/protocol/Front.js:333:13\nonPacket@resource://devtools/client/devtools-client.js:482:13\nsend/<@resource://devtools/shared/transport/local-transport.js:68:25\nexports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22\nDevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21\nsend@resource://devtools/shared/transport/local-transport.js:56:21\nsend@resource://devtools/server/devtools-server-connection.js:99:20\n_sendEvent@resource://devtools/shared/protocol/Actor.js:72:15\ninitialize/<@resource://devtools/shared/protocol/Actor.js:46:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nnotifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10\nconnectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13\nreceiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21\nJSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10\ninstantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14\nhandleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12\n", "resource://devtools/shared/protocol/Front.js", 103))
[task 2021-08-17T20:16:08.250Z] 20:16:08     INFO - GECKO(6804) | console.error: "Failed to start [root-node] legacy listener for target null" (new Error("Connection closed, pending request to server0.conn16.windowGlobal15032385542/inspectorActor4, type getWalker failed\n\nRequest stack:\nrequest@resource://devtools/shared/protocol/Front.js:289:14\ngenerateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19\n_getWalker@resource://devtools/client/fronts/inspector.js:81:30\ninitialize@resource://devtools/client/fronts/inspector.js:70:12\nasync*manage@resource://devtools/shared/protocol/Front.js:143:19\ngetFront@resource://devtools/shared/protocol/types.js:557:18\ngetFront@resource://devtools/client/fronts/targets/target-mixin.js:321:15\ninitInspectorFront@resource://devtools/client/inspector/inspector.js:411:45\n_onTargetAvailable@resource://devtools/client/inspector/inspector.js:264:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemitAsync@resource://devtools/shared/event-emitter.js:194:25\nemitAsync@resource://devtools/shared/event-emitter.js:346:25\n_onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33\nAsync*_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\n_onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nonPacket@resource://devtools/shared/protocol/Front.js:333:13\nonPacket@resource://devtools/client/devtools-client.js:482:13\nsend/<@resource://devtools/shared/transport/local-transport.js:68:25\nexports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22\nDevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21\nsend@resource://devtools/shared/transport/local-transport.js:56:21\nsend@resource://devtools/server/devtools-server-connection.js:99:20\n_sendEvent@resource://devtools/shared/protocol/Actor.js:72:15\ninitialize/<@resource://devtools/shared/protocol/Actor.js:46:16\n_emit@resource://devtools/shared/event-emitter.js:244:34\nemit@resource://devtools/shared/event-emitter.js:190:18\nemit@resource://devtools/shared/event-emitter.js:342:18\nnotifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10\nconnectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13\nreceiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21\nJSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10\ninstantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14\nhandleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12\n", "resource://devtools/shared/protocol/Front.js", 103))
[task 2021-08-17T20:16:08.277Z] 20:16:08     INFO - GECKO(6804) | JavaScript error: resource://devtools/shared/protocol/Front.js, line 103: Error: Connection closed, pending request to server0.conn16.windowGlobal15032385542/inspectorActor4, type getWalker failed
[task 2021-08-17T20:16:08.290Z] 20:16:08     INFO - GECKO(6804) | Request stack:
[task 2021-08-17T20:16:08.290Z] 20:16:08     INFO - GECKO(6804) | request@resource://devtools/shared/protocol/Front.js:289:14
[task 2021-08-17T20:16:08.291Z] 20:16:08     INFO - GECKO(6804) | generateRequestMethods/</frontProto[name]@resource://devtools/shared/protocol/Front/FrontClassWithSpec.js:46:19
[task 2021-08-17T20:16:08.291Z] 20:16:08     INFO - GECKO(6804) | _getWalker@resource://devtools/client/fronts/inspector.js:81:30
[task 2021-08-17T20:16:08.292Z] 20:16:08     INFO - GECKO(6804) | initialize@resource://devtools/client/fronts/inspector.js:70:12
[task 2021-08-17T20:16:08.292Z] 20:16:08     INFO - GECKO(6804) | async*manage@resource://devtools/shared/protocol/Front.js:143:19
[task 2021-08-17T20:16:08.293Z] 20:16:08     INFO - GECKO(6804) | getFront@resource://devtools/shared/protocol/types.js:557:18
[task 2021-08-17T20:16:08.293Z] 20:16:08     INFO - GECKO(6804) | getFront@resource://devtools/client/fronts/targets/target-mixin.js:321:15
[task 2021-08-17T20:16:08.294Z] 20:16:08     INFO - GECKO(6804) | initInspectorFront@resource://devtools/client/inspector/inspector.js:411:45
[task 2021-08-17T20:16:08.294Z] 20:16:08     INFO - GECKO(6804) | _onTargetAvailable@resource://devtools/client/inspector/inspector.js:264:16
[task 2021-08-17T20:16:08.295Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.295Z] 20:16:08     INFO - GECKO(6804) | emitAsync@resource://devtools/shared/event-emitter.js:194:25
[task 2021-08-17T20:16:08.295Z] 20:16:08     INFO - GECKO(6804) | emitAsync@resource://devtools/shared/event-emitter.js:346:25
[task 2021-08-17T20:16:08.296Z] 20:16:08     INFO - GECKO(6804) | _onTargetAvailable@resource://devtools/shared/commands/target/target-command.js:203:33
[task 2021-08-17T20:16:08.296Z] 20:16:08     INFO - GECKO(6804) | Async*_emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.297Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.297Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.298Z] 20:16:08     INFO - GECKO(6804) | _onTargetAvailable@resource://devtools/client/fronts/watcher.js:60:10
[task 2021-08-17T20:16:08.298Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34[task 2021-08-17T20:16:08.298Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.299Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.299Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/shared/protocol/Front.js:333:13
[task 2021-08-17T20:16:08.300Z] 20:16:08     INFO - GECKO(6804) | onPacket@resource://devtools/client/devtools-client.js:482:13
[task 2021-08-17T20:16:08.300Z] 20:16:08     INFO - GECKO(6804) | send/<@resource://devtools/shared/transport/local-transport.js:68:25
[task 2021-08-17T20:16:08.300Z] 20:16:08     INFO - GECKO(6804) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2021-08-17T20:16:08.301Z] 20:16:08     INFO - GECKO(6804) | DevToolsUtils.executeSoon*exports.executeSoon@resource://devtools/shared/DevToolsUtils.js:54:21
[task 2021-08-17T20:16:08.301Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/local-transport.js:56:21
[task 2021-08-17T20:16:08.302Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/server/devtools-server-connection.js:99:20
[task 2021-08-17T20:16:08.302Z] 20:16:08     INFO - GECKO(6804) | _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15
[task 2021-08-17T20:16:08.302Z] 20:16:08     INFO - GECKO(6804) | initialize/<@resource://devtools/shared/protocol/Actor.js:46:16
[task 2021-08-17T20:16:08.303Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.303Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.304Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.304Z] 20:16:08     INFO - GECKO(6804) | notifyTargetAvailable@resource://devtools/server/actors/watcher.js:222:10
[task 2021-08-17T20:16:08.305Z] 20:16:08     INFO - GECKO(6804) | connectFromContent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:143:13
[task 2021-08-17T20:16:08.305Z] 20:16:08     INFO - GECKO(6804) | receiveMessage@resource://devtools/server/connectors/js-window-actor/DevToolsFrameParent.jsm:209:21
[task 2021-08-17T20:16:08.306Z] 20:16:08     INFO - GECKO(6804) | JSActor query*_createTargetActor@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:320:10
[task 2021-08-17T20:16:08.306Z] 20:16:08     INFO - GECKO(6804) | instantiate@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:222:14
[task 2021-08-17T20:16:08.307Z] 20:16:08     INFO - GECKO(6804) | handleEvent@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:603:12
[task 2021-08-17T20:16:08.533Z] 20:16:08     INFO - GECKO(6804) | console.error: "Failed to start [root-node] legacy listener for target null" (new Error("Can not send request 'watchRootNode' because front 'domwalker' is already destroyed.", "resource://devtools/shared/protocol/Front/FrontClassWithSpec.js", 28))
[task 2021-08-17T20:16:08.780Z] 20:16:08     INFO - GECKO(6804) | console.error: "Failed to start [root-node] legacy listener for target null" (new Error("Can not send request 'watchRootNode' because front 'domwalker' is already destroyed.", "resource://devtools/shared/protocol/Front/FrontClassWithSpec.js", 28))
[task 2021-08-17T20:16:08.864Z] 20:16:08     INFO - GECKO(6804) | console.error: (new InvalidStateError("JSWindowActorChild.sendAsyncMessage: JSWindowActorChild cannot send at the moment", (void 0), 431))
[task 2021-08-17T20:16:08.868Z] 20:16:08     INFO - GECKO(6804) | InvalidStateError: JSWindowActorChild.sendAsyncMessage: JSWindowActorChild cannot send at the moment: sendPacket@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:431:10
[task 2021-08-17T20:16:08.868Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/js-window-actor-transport.js:53:25
[task 2021-08-17T20:16:08.869Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/server/devtools-server-connection.js:99:20
[task 2021-08-17T20:16:08.869Z] 20:16:08     INFO - GECKO(6804) | _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15
[task 2021-08-17T20:16:08.870Z] 20:16:08     INFO - GECKO(6804) | initialize/<@resource://devtools/shared/protocol/Actor.js:46:16
[task 2021-08-17T20:16:08.870Z] 20:16:08     INFO - GECKO(6804) | _emit@resource://devtools/shared/event-emitter.js:244:34
[task 2021-08-17T20:16:08.871Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:190:18
[task 2021-08-17T20:16:08.871Z] 20:16:08     INFO - GECKO(6804) | emit@resource://devtools/shared/event-emitter.js:342:18
[task 2021-08-17T20:16:08.871Z] 20:16:08     INFO - GECKO(6804) | _notifyDocShellsUpdate@resource://devtools/server/actors/targets/browsing-context.js:971:10
[task 2021-08-17T20:16:08.872Z] 20:16:08     INFO - GECKO(6804) | DebuggerProgressListener.prototype.onStateChange<@resource://devtools/server/actors/targets/browsing-context.js:1870:25
[task 2021-08-17T20:16:08.872Z] 20:16:08     INFO - GECKO(6804) | exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:103:22
[task 2021-08-17T20:16:08.873Z] 20:16:08     INFO - GECKO(6804) | console.error: (new InvalidStateError("JSWindowActorChild.sendAsyncMessage: JSWindowActorChild cannot send at the moment", (void 0), 431))
[task 2021-08-17T20:16:08.874Z] 20:16:08     INFO - GECKO(6804) | InvalidStateError: JSWindowActorChild.sendAsyncMessage: JSWindowActorChild cannot send at the moment: sendPacket@resource://devtools/server/connectors/js-window-actor/DevToolsFrameChild.jsm:431:10
[task 2021-08-17T20:16:08.874Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/shared/transport/js-window-actor-transport.js:53:25
[task 2021-08-17T20:16:08.875Z] 20:16:08     INFO - GECKO(6804) | send@resource://devtools/server/devtools-server-connection.js:99:20
[task 2021-08-17T20:16:08.875Z] 20:16:08     INFO - GECKO(6804) | _sendEvent@resource://devtools/shared/protocol/Actor.js:72:15[task 2021-08-17T20:16:15.161Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.161Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.162Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 75}]
[task 2021-08-17T20:16:15.162Z] 20:16:15     INFO - Buffered messages logged at 20:16:12
[task 2021-08-17T20:16:15.163Z] 20:16:15     INFO - Waiting 0.5 seconds.
[task 2021-08-17T20:16:15.163Z] 20:16:15     INFO - Console message: [JavaScript Warning: "Loading failed for the <script> with source http://example.org/browser/devtools/client/framework/test/code_inline_bundle.js?id=1629231372052." {file: "http://example.org/browser/devtools/client/framework/test/doc_backward_forward_navigation.html" line: 1}]
[task 2021-08-17T20:16:15.164Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.165Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.166Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 75}]
[task 2021-08-17T20:16:15.166Z] 20:16:15     INFO - Waiting 0.5 seconds.
[task 2021-08-17T20:16:15.166Z] 20:16:15     INFO - Buffered messages logged at 20:16:13
[task 2021-08-17T20:16:15.167Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.168Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.168Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 75}]
[task 2021-08-17T20:16:15.169Z] 20:16:15     INFO - Waiting 0.5 seconds.
[task 2021-08-17T20:16:15.169Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.170Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.171Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 75}]
[task 2021-08-17T20:16:15.171Z] 20:16:15     INFO - Navigate to final document
[task 2021-08-17T20:16:15.172Z] 20:16:15     INFO - Navigating to "http://example.org/browser/devtools/client/framework/test/doc_backward_forward_navigation.html?no-mutation"
[task 2021-08-17T20:16:15.172Z] 20:16:15     INFO - Waiting for page to be loaded
[task 2021-08-17T20:16:15.173Z] 20:16:15     INFO - Buffered messages logged at 20:16:14
[task 2021-08-17T20:16:15.173Z] 20:16:15     INFO - \u2192 page loaded
[task 2021-08-17T20:16:15.174Z] 20:16:15     INFO - Waiting for inspector to be reloaded
[task 2021-08-17T20:16:15.174Z] 20:16:15     INFO - Waiting for markup view to load after navigation.
[task 2021-08-17T20:16:15.174Z] 20:16:15     INFO - Waiting for new root.
[task 2021-08-17T20:16:15.175Z] 20:16:15     INFO - Waiting for inspector to update after new-root event.
[task 2021-08-17T20:16:15.175Z] 20:16:15     INFO - Waiting for inspector updates after page reload
[task 2021-08-17T20:16:15.176Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.176Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 511}]
[task 2021-08-17T20:16:15.177Z] 20:16:15     INFO - Console message: [JavaScript Error: "Content Security Policy: The pages settings blocked the loading of a resource at inline (default-src)." {file: "chrome" line: 75}]
[task 2021-08-17T20:16:15.177Z] 20:16:15     INFO - \u2192 panel reloaded
[task 2021-08-17T20:16:15.178Z] 20:16:15     INFO - Waiting for target switch
[task 2021-08-17T20:16:15.178Z] 20:16:15     INFO - \u2192 switched-target emitted[task 2021-08-17T20:16:15.178Z] 20:16:15     INFO - Waiting for inspector to reload
[task 2021-08-17T20:16:15.179Z] 20:16:15     INFO - -> inspector reloaded
[task 2021-08-17T20:16:15.179Z] 20:16:15     INFO - Check that the toolbox toolbar is still visible
[task 2021-08-17T20:16:15.180Z] 20:16:15     INFO - TEST-PASS | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | Toolbar is still visible - 
[task 2021-08-17T20:16:15.180Z] 20:16:15     INFO - Check that the markup view is rendered correctly and elements can be selected
[task 2021-08-17T20:16:15.181Z] 20:16:15     INFO - TEST-PASS | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | the markup view is still rendered fine - 
[task 2021-08-17T20:16:15.181Z] 20:16:15     INFO - Selecting the node for 'ul.logs'
[task 2021-08-17T20:16:15.182Z] 20:16:15     INFO - TEST-PASS | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | Nodes can be selected - 
[task 2021-08-17T20:16:15.182Z] 20:16:15     INFO - Check that the debugger has some sources
[task 2021-08-17T20:16:15.182Z] 20:16:15     INFO - Wait for doc_backward_forward_navigation.html to be displayed in the debugger source panel
[task 2021-08-17T20:16:15.183Z] 20:16:15     INFO - TEST-PASS | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | The debugger has the expected source - 
[task 2021-08-17T20:16:15.183Z] 20:16:15     INFO - Buffered messages finished
[task 2021-08-17T20:16:15.188Z] 20:16:15     INFO - TEST-UNEXPECTED-FAIL | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | A promise chain failed to handle a rejection: can't access property "getFrontByID", ctx.conn is undefined - stack: read@resource://devtools/shared/protocol/types.js:313:19

Comment 1

[Cosmin Sabou [:CosminS]]

This looks to have started after Bug 1702715 landed, retriggers. Nicolas, could you have a look over this? Thank you.

Comment 2

[Intermittent Failures Robot]

37 failures in 2899 pushes (0.013 failures/push) were associated with this bug in the last 7 days.

This is the #28 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: 29
• mozilla-central: 6
• try: 2

Platform and build breakdown:

• windows10-64-2004-asan-qr: 9
  • opt: 9
• windows10-64-2004-qr: 7
  • debug: 7
• macosx1015-64-qr: 12
  • debug: 12
• linux1804-64-asan-qr: 8
  • opt: 8
• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1726238&startday=2021-08-16&endday=2021-08-22&tree=all

Comment 3

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Alex, could you please look at this, thank you!

Comment 4

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

Set release status flags based on info from the regressing bug 1702715

Comment 5

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1726238 - [devtools] Fix browser_toolbox_backward_forward_navigation.js intermittent failure.

Inspector fronts initialization is still pending while we navigate away to another top target.
Leading to various possible exception in protocol.js.
I'm adding a set of new explicit exception in order to help debugging all these cases.

Comment 6

[Sandor Molnar[:smolnar]]

There have been a total of 68 failures in the last 7 days, mostly, on the following platforms:

• linux1804-64-asan-qr opt
• macosx1015-64-qr debug
• windows10-64-2004-asan-qr opt
• windows10-64-2004-qr debug

recent failure log

[task 2021-08-27T11:06:17.783Z] 11:06:17     INFO - Buffered messages finished
[task 2021-08-27T11:06:17.789Z] 11:06:17     INFO - TEST-UNEXPECTED-FAIL | devtools/client/framework/test/browser_toolbox_backward_forward_navigation.js | A promise chain failed to handle a rejection: can't access property "getFrontByID", ctx.conn is undefined - stack: read@resource://devtools/shared/protocol/types.js:313:19
[task 2021-08-27T11:06:17.789Z] 11:06:17     INFO - read@resource://devtools/shared/protocol/Response.js:103:22```

Comment 7

[Intermittent Failures Robot]

48 failures in 2580 pushes (0.019 failures/push) were associated with this bug in the last 7 days.

This is the #25 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: 36
• mozilla-central: 11
• try: 1

Platform and build breakdown:

• linux1804-64-asan-qr: 5
  • opt: 5
• macosx1015-64-qr: 17
  • debug: 17
• windows10-64-2004-qr: 19
  • debug: 18
  • opt: 1
• windows10-64-2004-asan-qr: 5
  • opt: 5
• linux1804-64-qr: 1
  • opt: 1
• linux1804-64-ccov-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1726238&startday=2021-08-23&endday=2021-08-29&tree=all

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/0ef6e31f7f35
[devtools] Fix browser_toolbox_backward_forward_navigation.js intermittent failure. r=bomsy

Comment 9

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/0ef6e31f7f35

Comment 10

[Intermittent Failures Robot]

23 failures in 3084 pushes (0.007 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• autoland: 19
• mozilla-central: 3

Platform and build breakdown:

• windows10-64-2004-qr: 9
  • debug: 9
• linux1804-64-qr: 1
  • opt: 1
• macosx1015-64-qr: 5
  • debug: 5
• windows10-64-2004-asan-qr: 6
  • opt: 6
• linux1804-64-asan-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1726238&startday=2021-08-30&endday=2021-09-05&tree=all

Comment 11

[Nicolas Chevobbe [:nchevobbe]]

thanks for looking into this Alex