2020146 - Perma mochitest plain [taskcluster:error] Aborting task... | single tracking bug

Status: NEW

(Testing :: Mochitest, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: amarc [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=551196309&repo=autoland&task=PRv085YqRxSpkglPO4feRw.0
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/PRv085YqRxSpkglPO4feRw/runs/0/artifacts/public/logs/live_backing.log

---

[task 2026-02-28T13:43:40.196+00:00] 13:43:40     INFO - runtests.py | Running http tests: end. status: 0
[task 2026-02-28T13:43:40.196+00:00] 13:43:40     INFO - Stopping web server
[task 2026-02-28T13:43:40.207+00:00] 13:43:40     INFO - Server shut down.
[task 2026-02-28T13:43:40.207+00:00] 13:43:40     INFO - Web server killed.
[task 2026-02-28T13:43:40.207+00:00] 13:43:40     INFO - Stopping web socket server
[task 2026-02-28T13:43:40.207+00:00] 13:43:40     INFO - Stopping ssltunnel
[task 2026-02-28T13:43:40.208+00:00] 13:43:40     INFO - Stopping gst for v4l2loopback
[task 2026-02-28T13:43:40.209+00:00] 13:43:40  WARNING - leakcheck | refcount logging is off, so leaks can't be detected!
[task 2026-02-28T13:43:40.272+00:00] 13:43:40     INFO - Buffered messages finished
[task 2026-02-28T13:43:40.272+00:00] 13:43:40     INFO - Running manifest: dom/filesystem/compat/tests/mochitest.toml
[task 2026-02-28T13:43:40.329+00:00] 13:43:40     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:43:40.341+00:00] 13:43:40     INFO -  Setting pipeline to PAUSED ...
[task 2026-02-28T13:43:40.341+00:00] 13:43:40     INFO -  Pipeline is PREROLLING ...
[task 2026-02-28T13:43:40.343+00:00] 13:43:40     INFO -  Pipeline is PREROLLED ...
[task 2026-02-28T13:43:40.343+00:00] 13:43:40     INFO -  Setting pipeline to PLAYING ...
[task 2026-02-28T13:43:40.343+00:00] 13:43:40     INFO -  Redistribute latency...
[task 2026-02-28T13:43:40.343+00:00] 13:43:40     INFO -  New clock: GstSystemClock
[task 2026-02-28T13:43:40.376+00:00] 13:43:40     INFO -  Got EOS from element "pipeline0".
[task 2026-02-28T13:43:40.376+00:00] 13:43:40     INFO -  Execution ended after 0:00:00.033490649
[task 2026-02-28T13:43:40.377+00:00] 13:43:40     INFO -  Setting pipeline to NULL ...
[task 2026-02-28T13:43:40.505+00:00] 13:43:40     INFO - PID 30919 | pk12util: PKCS12 IMPORT SUCCESSFUL
[task 2026-02-28T13:43:40.505+00:00] 13:43:40     INFO - 
[task 2026-02-28T13:43:40.851+00:00] 13:43:40     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:43:40.852+00:00] 13:43:40     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:43:40.853+00:00] 13:43:40     INFO - MochitestServer : launching ['/builds/worker/workspace/build/tests/bin/xpcshell', '-g', '/builds/worker/workspace/build/application/firefox', '-e', "const _PROFILE_PATH = '/tmp/tmpd85oltxw.mozrunner'; const _SERVER_PORT = '8888'; const _SERVER_ADDR = '127.0.0.1'; const _TEST_PREFIX = undefined; const _DISPLAY_RESULTS = false; const _HTTPD_PATH = '/builds/worker/workspace/build/tests/bin/components';", '-f', '/builds/worker/workspace/build/tests/mochitest/server.js']
[task 2026-02-28T13:43:40.853+00:00] 13:43:40     INFO - runtests.py | Server pid: 30933
[task 2026-02-28T13:43:40.853+00:00] 13:43:40     INFO - runtests.py | Websocket server pid: 30934
[task 2026-02-28T13:43:40.854+00:00] 13:43:40     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:43:40.854+00:00] 13:43:40     INFO - runtests.py | SSL tunnel pid: 30935
[task 2026-02-28T13:43:41.154+00:00] 13:43:41     INFO - use http3 server: 0
[task 2026-02-28T13:43:41.156+00:00] 13:43:41     INFO - runtests.py | Running with scheme: http
[task 2026-02-28T13:43:41.156+00:00] 13:43:41     INFO - runtests.py | Running with e10s: True
[task 2026-02-28T13:43:41.156+00:00] 13:43:41     INFO - runtests.py | Running with fission: True
[task 2026-02-28T13:43:41.157+00:00] 13:43:41     INFO - runtests.py | Running with cross-origin iframes: False
[task 2026-02-28T13:43:41.157+00:00] 13:43:41     INFO - runtests.py | Running with socketprocess_e10s: False
[task 2026-02-28T13:43:41.157+00:00] 13:43:41     INFO - runtests.py | Running http tests: start.
[task 2026-02-28T13:43:41.157+00:00] 13:43:41     INFO - 
[task 2026-02-28T13:43:41.161+00:00] 13:43:41     INFO - Application command: /builds/worker/workspace/build/application/firefox/firefox -marionette -remote-allow-system-access -foreground -profile /tmp/tmpd85oltxw.mozrunner
[task 2026-02-28T13:43:41.165+00:00] 13:43:41     INFO - runtests.py | Application pid: 30979
[task 2026-02-28T13:43:41.165+00:00] 13:43:41     INFO - TEST-INFO | started process GECKO(30979)
[task 2026-02-28T13:43:43.597+00:00] 13:43:43     INFO - GECKO(30979) | libEGL warning: DRI3: Screen seems not DRI3 capable
[task 2026-02-28T13:43:43.598+00:00] 13:43:43     INFO - GECKO(30979) | libEGL warning: DRI3: Screen seems not DRI3 capable
[task 2026-02-28T13:43:43.659+00:00] 13:43:43     INFO - GECKO(30979) | MESA: error: ZINK: failed to choose pdev
[task 2026-02-28T13:43:43.662+00:00] 13:43:43     INFO - GECKO(30979) | 1772286223661	Marionette	INFO	Marionette enabled
[task 2026-02-28T13:43:43.670+00:00] 13:43:43     INFO - GECKO(30979) | 1772286223669	Marionette	TRACE	Received observer notification final-ui-startup
[task 2026-02-28T13:43:43.670+00:00] 13:43:43     INFO - GECKO(30979) | libEGL warning: egl: failed to create dri2 screen
[task 2026-02-28T13:43:44.129+00:00] 13:43:44     INFO - GECKO(30979) | console.error: "Warning: unrecognized command line flag" "-foreground"
[task 2026-02-28T13:43:44.286+00:00] 13:43:44     INFO - GECKO(30979) | 1772286224285	Marionette	INFO	Listening on port 2828
[task 2026-02-28T13:43:44.297+00:00] 13:43:44     INFO - GECKO(30979) | 1772286224296	Marionette	DEBUG	Marionette is listening
[task 2026-02-28T13:43:44.388+00:00] 13:43:44     INFO - GECKO(30979) | 1772286224387	Marionette	DEBUG	Accepted connection 0 from 127.0.0.1:59540
[task 2026-02-28T13:43:44.461+00:00] 13:43:44     INFO - GECKO(30979) | 1772286224460	Marionette	DEBUG	Closed connection 0
[task 2026-02-28T13:43:44.925+00:00] 13:43:44     INFO - GECKO(30979) | 1772286224924	Marionette	DEBUG	Accepted connection 1 from 127.0.0.1:59542
[task 2026-02-28T13:43:45.054+00:00] 13:43:45     INFO - GECKO(30979) | 1772286225052	Marionette	DEBUG	Closed connection 1
[task 2026-02-28T13:43:45.055+00:00] 13:43:45     INFO - GECKO(30979) | 1772286225054	Marionette	DEBUG	Accepted connection 2 from 127.0.0.1:59552
[task 2026-02-28T13:43:45.582+00:00] 13:43:45     INFO - GECKO(30979) | 1772286225581	Marionette	DEBUG	2 -> [0,1,"WebDriver:NewSession",{"strictFileInteractability":true}]
[task 2026-02-28T13:43:45.625+00:00] 13:43:45     INFO - GECKO(30979) | 1772286225624	Marionette	DEBUG	Waiting for initial application window
[task 2026-02-28T13:43:46.468+00:00] 13:43:46     INFO - GECKO(30979) | [Parent 30979: Main Thread]: I/SlowChromeEvent Please do not use mouseenter/leave events in chrome. They are slower than mouseover/out! chrome://browser/content/tabbrowser/tabs.js:51:12
[task 2026-02-28T13:43:49.534+00:00] 13:43:49     INFO - GECKO(30979) | warning: address range table at offset 0x78970 has a premature terminator entry at offset 0x789c0
[task 2026-02-28T13:43:49.535+00:00] 13:43:49     INFO - GECKO(30979) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7cda0
[task 2026-02-28T13:43:49.535+00:00] 13:43:49     INFO - GECKO(30979) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7cde0
[task 2026-02-28T13:43:49.536+00:00] 13:43:49     INFO - GECKO(30979) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7ce90
[task 2026-02-28T13:43:51.862+00:00] 13:43:51     INFO - GECKO(30979) | /builds/worker/workspace/build/application/firefox/llvm-symbolizer: error: '[anon:js-executable-memory]': No such file or directory
[task 2026-02-28T13:43:52.760+00:00] 13:43:52     INFO - GECKO(30979) | console.error: services.settings:
[task 2026-02-28T13:43:52.761+00:00] 13:43:52     INFO - GECKO(30979) |   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
[task 2026-02-28T13:43:52.762+00:00] 13:43:52     INFO - GECKO(30979) |   Stack:
[task 2026-02-28T13:43:52.762+00:00] 13:43:52     INFO - GECKO(30979) |     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
[task 2026-02-28T13:43:52.763+00:00] 13:43:52     INFO - GECKO(30979) | list@resource://services-settings/Database.sys.mjs:96:13
[task 2026-02-28T13:43:52.764+00:00] 13:43:52     INFO - GECKO(30979) | async*get@resource://services-settings/RemoteSettingsClient.sys.mjs:567:28
[task 2026-02-28T13:43:52.764+00:00] 13:43:52     INFO - GECKO(30979) | async*getRecipesFromCollection@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:635:30
[task 2026-02-28T13:43:52.765+00:00] 13:43:52     INFO - GECKO(30979) | getRecipesFromAllCollections@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:543:39
[task 2026-02-28T13:43:52.765+00:00] 13:43:52     INFO - GECKO(30979) | #updateImpl@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:439:33
[task 2026-02-28T13:43:52.766+00:00] 13:43:52     INFO - GECKO(30979) | async*updateRecipes/<@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:392:53
[task 2026-02-28T13:43:52.766+00:00] 13:43:52     INFO - GECKO(30979) | LockGrantedCallback*withUpdateLock@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:349:24
[task 2026-02-28T13:43:52.767+00:00] 13:43:52     INFO - GECKO(30979) | updateRecipes@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:392:16
[task 2026-02-28T13:43:52.768+00:00] 13:43:52     INFO - GECKO(30979) | enable@resource://nimbus/lib/RemoteSettingsExperimentLoader.sys.mjs:318:16
[task 2026-02-28T13:43:52.768+00:00] 13:43:52     INFO - GECKO(30979) | init@resource://nimbus/ExperimentAPI.sys.mjs:303:28
[task 2026-02-28T13:43:52.768+00:00] 13:43:52     INFO - GECKO(30979) | async*finishInit@resource://normandy/Normandy.sys.mjs:109:30
[task 2026-02-28T13:43:52.769+00:00] 13:43:52     INFO - GECKO(30979) | async*init@resource://normandy/Normandy.sys.mjs:80:16
[task 2026-02-28T13:43:52.769+00:00] 13:43:52     INFO - GECKO(30979) | async*fn@resource://gre/modules/BrowserUtils.sys.mjs:54:65
[task 2026-02-28T13:43:52.770+00:00] 13:43:52     INFO - GECKO(30979) | callSingleListener@resource://gre/modules/BrowserUtils.sys.mjs:591:15
[task 2026-02-28T13:43:52.771+00:00] 13:43:52     INFO - GECKO(30979) | callModulesFromCategory@resource://gre/modules/BrowserUtils.sys.mjs:632:23
[task 2026-02-28T13:43:52.771+00:00] 13:43:52     INFO - GECKO(30979) | BG__beforeUIStartup@resource:///modules/BrowserGlue.sys.mjs:413:23
[task 2026-02-28T13:43:52.771+00:00] 13:43:52     INFO - GECKO(30979) | BG_observe@resource:///modules/BrowserGlue.sys.mjs:193:14
[task 2026-02-28T13:43:55.309+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235307	Marionette	TRACE	Received observer notification browser-idle-startup-tasks-finished
[task 2026-02-28T13:43:55.330+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235329	RemoteAgent	TRACE	[10] ProgressListener Start: expectNavigation=false resolveWhenStarted=false unloadTimeout=40000 waitForExplicitStart=false
[task 2026-02-28T13:43:55.331+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235330	RemoteAgent	TRACE	[10] ProgressListener Setting unload timer (40000ms)
[task 2026-02-28T13:43:55.334+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235333	RemoteAgent	TRACE	[10] Wait for initial navigation: isUncommittedInitial=false, isLoadingDocument=false
[task 2026-02-28T13:43:55.335+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235334	RemoteAgent	TRACE	[10] Document already finished loading: about:blank
[task 2026-02-28T13:43:55.335+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235334	RemoteAgent	TRACE	[10] ProgressListener Stop: has error=false url=about:blank
[task 2026-02-28T13:43:55.412+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235409	Marionette	DEBUG	2 <- [1,1,null,{"sessionId":"4c771a0a-91c2-4254-b3ce-5a7e0879117d","capabilities":{"acceptInsecureCerts":false,"browserName":"firefox","browserVersion":"150.0a1","platformName":"linux","setWindowRect":true,"unhandledPromptBehavior":"dismiss and notify","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0","moz:buildID":"20260228093326","moz:headless":false,"moz:platformVersion":"6.14.0-1021-gcp","moz:processID":30979,"moz:profile":"/tmp/tmpd85oltxw.mozrunner","moz:shutdownTimeout":360000,"pageLoadStrategy":"normal","timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"strictFileInteractability":true,"moz:accessibilityChecks":false,"moz:webdriverClick":true,"moz:windowless":false,"proxy":{}}}]
[task 2026-02-28T13:43:55.441+00:00] 13:43:55     INFO - GECKO(30979) | 1772286235440	Marionette	DEBUG	2 -> [0,2,"Addon:Install",{"temporary":false,"path":"/tmp/tmp_rr7bq5x.zip"}]
[task 2026-02-28T13:43:56.083+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236081	Marionette	DEBUG	2 <- [1,2,null,{"value":"[e-mail]"}]
[task 2026-02-28T13:43:56.121+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236120	Marionette	DEBUG	2 -> [0,3,"Addon:Install",{"temporary":false,"path":"/tmp/tmp4x0rqf71.zip"}]
[task 2026-02-28T13:43:56.227+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236225	Marionette	DEBUG	2 <- [1,3,null,{"value":"[e-mail]"}]
[task 2026-02-28T13:43:56.236+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236235	Marionette	DEBUG	2 -> [0,4,"Marionette:GetContext",{}]
[task 2026-02-28T13:43:56.237+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236236	Marionette	DEBUG	2 <- [1,4,null,{"value":"content"}]
[task 2026-02-28T13:43:56.238+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236238	Marionette	DEBUG	2 -> [0,5,"Marionette:SetContext",{"value":"chrome"}]
[task 2026-02-28T13:43:56.240+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236239	Marionette	DEBUG	2 <- [1,5,null,{"value":null}]
[task 2026-02-28T13:43:56.245+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236243	Marionette	DEBUG	2 -> [0,6,"WebDriver:ExecuteScript",{"script":"/* This Source Code Form is subject to the terms of the Mozilla Public\n * License, v. 2.0. If a copy of the MPL was not distr ... \n// the flavor and url to load.\nlet ev = new CustomEvent(\"mochitest-load\", { detail: [flavor, url] });\nwin.dispatchEvent(ev);","args":[{"flavor":"mochitest","testUrl":"http://mochi.test:8888/tests?autorun=1&closeWhenDone=1&consoleLevel=INFO&manifestFile=tests.json&dumpOutputDirectory=%2Ftmp&cleanupCrashes=true&ignorePrefsFile=ignorePrefs.json"}],"newSandbox":true,"sandbox":"default","line":2156,"filename":"tests/mochitest/runtests.py"}]
[task 2026-02-28T13:43:56.270+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236269	RemoteAgent	TRACE	WebDriverProcessData actor created for PID 30979
[task 2026-02-28T13:43:56.274+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236273	Marionette	TRACE	[1] MarionetteCommands actor created for window id 2
[task 2026-02-28T13:43:56.344+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236344	Marionette	DEBUG	2 <- [1,6,null,{"value":null}]
[task 2026-02-28T13:43:56.418+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236417	Marionette	DEBUG	2 -> [0,7,"Marionette:SetContext",{"value":"content"}]
[task 2026-02-28T13:43:56.419+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236418	Marionette	DEBUG	2 <- [1,7,null,{"value":null}]
[task 2026-02-28T13:43:56.442+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236441	Marionette	DEBUG	2 -> [0,8,"WebDriver:DeleteSession",{}]
[task 2026-02-28T13:43:56.444+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236443	Marionette	TRACE	[1] MarionetteCommands actor destroyed for window id 2
[task 2026-02-28T13:43:56.460+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236459	Marionette	DEBUG	2 <- [1,8,null,{"value":null}]
[task 2026-02-28T13:43:56.520+00:00] 13:43:56     INFO - runtests.py | Waiting for browser...
[task 2026-02-28T13:43:56.531+00:00] 13:43:56     INFO - GECKO(30979) | 1772286236528	Marionette	DEBUG	Closed connection 2
[task 2026-02-28T13:43:57.420+00:00] 13:43:57     INFO - SimpleTest START
[task 2026-02-28T13:43:57.423+00:00] 13:43:57     INFO - Dumping test context:
[task 2026-02-28T13:43:57.423+00:00] 13:43:57     INFO -   fission.autostart=true
[task 2026-02-28T13:43:57.440+00:00] 13:43:57     INFO - TEST-START | dom/filesystem/compat/tests/test_basic.html
[task 2026-02-28T13:43:58.323+00:00] 13:43:58     INFO - GECKO(30979) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2026-02-28T13:43:58.323+00:00] 13:43:58     INFO - GECKO(30979) | MEMORY STAT heapAllocated not supported in this build configuration.
[task 2026-02-28T13:43:58.324+00:00] 13:43:58     INFO - GECKO(30979) | MEMORY STAT | vsize 120588978MB | residentFast 269MB
[task 2026-02-28T13:43:58.561+00:00] 13:43:58     INFO - TEST-PASS | dom/filesystem/compat/tests/test_basic.html | took 1121ms
[task 2026-02-28T13:43:58.727+00:00] 13:43:58     INFO - TEST-START | dom/filesystem/compat/tests/test_formSubmission.html
[task 2026-02-28T13:43:59.691+00:00] 13:43:59     INFO - GECKO(30979) | MEMORY STAT | vsize 120588993MB | residentFast 294MB
[task 2026-02-28T13:43:59.779+00:00] 13:43:59     INFO - TEST-PASS | dom/filesystem/compat/tests/test_formSubmission.html | took 1052ms
[task 2026-02-28T13:43:59.980+00:00] 13:43:59     INFO - TEST-START | dom/filesystem/compat/tests/test_no_dnd.html
[task 2026-02-28T13:44:00.257+00:00] 13:44:00     INFO - GECKO(30979) | MEMORY STAT | vsize 120588994MB | residentFast 300MB
[task 2026-02-28T13:44:00.392+00:00] 13:44:00     INFO - TEST-PASS | dom/filesystem/compat/tests/test_no_dnd.html | took 412ms
[task 2026-02-28T13:44:00.546+00:00] 13:44:00     INFO - TEST-START | Shutdown
[task 2026-02-28T13:44:00.547+00:00] 13:44:00     INFO - Passed:  108
[task 2026-02-28T13:44:00.548+00:00] 13:44:00     INFO - Failed:  0
[task 2026-02-28T13:44:00.548+00:00] 13:44:00     INFO - Todo:    0
[task 2026-02-28T13:44:00.549+00:00] 13:44:00     INFO - Mode:    e10s
[task 2026-02-28T13:44:00.550+00:00] 13:44:00     INFO - Slowest: 1053ms - /tests/dom/filesystem/compat/tests/test_basic.html
[task 2026-02-28T13:44:00.552+00:00] 13:44:00     INFO - SimpleTest FINISHED
[task 2026-02-28T13:44:00.553+00:00] 13:44:00     INFO - TEST-INFO | Ran 1 Loops
[task 2026-02-28T13:44:00.553+00:00] 13:44:00     INFO - SimpleTest FINISHED
[task 2026-02-28T13:44:03.620+00:00] 13:44:03     INFO - GECKO(30979) | 1772286243619	Marionette	TRACE	Received observer notification quit-application
[task 2026-02-28T13:44:03.621+00:00] 13:44:03     INFO - GECKO(30979) | 1772286243619	Marionette	TRACE	Application is shutting down with reason: "shutdown"
[task 2026-02-28T13:44:03.621+00:00] 13:44:03     INFO - GECKO(30979) | 1772286243620	Marionette	INFO	Stopped listening on port 2828
[task 2026-02-28T13:44:03.816+00:00] 13:44:03     INFO - GECKO(30979) | 1772286243815	Marionette	DEBUG	Marionette stopped listening
[task 2026-02-28T13:44:04.906+00:00] 13:44:04     INFO - GECKO(30979) | 1772286244905	Marionette	TRACE	Received observer notification xpcom-shutdown
[task 2026-02-28T13:44:04.963+00:00] 13:44:04     INFO - GECKO(30979) | 1772286244961	Marionette	TRACE	Received observer notification xpcom-shutdown-threads
[task 2026-02-28T13:44:07.268+00:00] 13:44:07     INFO - TEST-INFO | Main app process: exit 0
[task 2026-02-28T13:44:07.268+00:00] 13:44:07     INFO - runtests.py | Application ran for: 0:00:26.106999
[task 2026-02-28T13:44:07.268+00:00] 13:44:07     INFO - zombiecheck | Reading PID log: /tmp/tmp1m6fvastpidlog
[task 2026-02-28T13:44:07.269+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31095
[task 2026-02-28T13:44:07.269+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31100
[task 2026-02-28T13:44:07.269+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31131
[task 2026-02-28T13:44:07.270+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31180
[task 2026-02-28T13:44:07.270+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31212
[task 2026-02-28T13:44:07.271+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31218
[task 2026-02-28T13:44:07.271+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31235
[task 2026-02-28T13:44:07.271+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31271
[task 2026-02-28T13:44:07.272+00:00] 13:44:07     INFO - ==> process 30979 launched child process 31344
[task 2026-02-28T13:44:07.272+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31235
[task 2026-02-28T13:44:07.273+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31271
[task 2026-02-28T13:44:07.273+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31212
[task 2026-02-28T13:44:07.273+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31180
[task 2026-02-28T13:44:07.274+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31344
[task 2026-02-28T13:44:07.274+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31218
[task 2026-02-28T13:44:07.275+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31095
[task 2026-02-28T13:44:07.275+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31131
[task 2026-02-28T13:44:07.275+00:00] 13:44:07     INFO - zombiecheck | Checking for orphan process with PID: 31100
[task 2026-02-28T13:44:07.276+00:00] 13:44:07     INFO - runtests.py | Running http tests: end. status: 0
[task 2026-02-28T13:44:07.276+00:00] 13:44:07     INFO - Stopping web server
[task 2026-02-28T13:44:07.276+00:00] 13:44:07     INFO - Server shut down.
[task 2026-02-28T13:44:07.277+00:00] 13:44:07     INFO - Web server killed.
[task 2026-02-28T13:44:07.277+00:00] 13:44:07     INFO - Stopping web socket server
[task 2026-02-28T13:44:07.277+00:00] 13:44:07     INFO - Stopping ssltunnel
[task 2026-02-28T13:44:07.278+00:00] 13:44:07     INFO - Stopping gst for v4l2loopback
[task 2026-02-28T13:44:07.278+00:00] 13:44:07  WARNING - leakcheck | refcount logging is off, so leaks can't be detected!
[task 2026-02-28T13:44:07.313+00:00] 13:44:07     INFO - Buffered messages finished
[task 2026-02-28T13:44:07.313+00:00] 13:44:07     INFO - Running manifest: dom/filesystem/tests/mochitest.toml
[task 2026-02-28T13:44:07.368+00:00] 13:44:07     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:44:07.380+00:00] 13:44:07     INFO -  Setting pipeline to PAUSED ...
[task 2026-02-28T13:44:07.381+00:00] 13:44:07     INFO -  Pipeline is PREROLLING ...
[task 2026-02-28T13:44:07.382+00:00] 13:44:07     INFO -  Pipeline is PREROLLED ...
[task 2026-02-28T13:44:07.382+00:00] 13:44:07     INFO -  Setting pipeline to PLAYING ...
[task 2026-02-28T13:44:07.382+00:00] 13:44:07     INFO -  Redistribute latency...
[task 2026-02-28T13:44:07.383+00:00] 13:44:07     INFO -  New clock: GstSystemClock
[task 2026-02-28T13:44:07.416+00:00] 13:44:07     INFO -  Got EOS from element "pipeline0".
[task 2026-02-28T13:44:07.416+00:00] 13:44:07     INFO -  Execution ended after 0:00:00.033501700
[task 2026-02-28T13:44:07.416+00:00] 13:44:07     INFO -  Setting pipeline to NULL ...
[task 2026-02-28T13:44:07.549+00:00] 13:44:07     INFO - PID 31421 | pk12util: PKCS12 IMPORT SUCCESSFUL
[task 2026-02-28T13:44:07.549+00:00] 13:44:07     INFO - 
[task 2026-02-28T13:44:07.898+00:00] 13:44:07     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:44:07.898+00:00] 13:44:07     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:44:07.899+00:00] 13:44:07     INFO - MochitestServer : launching ['/builds/worker/workspace/build/tests/bin/xpcshell', '-g', '/builds/worker/workspace/build/application/firefox', '-e', "const _PROFILE_PATH = '/tmp/tmpy0e0txl1.mozrunner'; const _SERVER_PORT = '8888'; const _SERVER_ADDR = '127.0.0.1'; const _TEST_PREFIX = undefined; const _DISPLAY_RESULTS = false; const _HTTPD_PATH = '/builds/worker/workspace/build/tests/bin/components';", '-f', '/builds/worker/workspace/build/tests/mochitest/server.js']
[task 2026-02-28T13:44:07.900+00:00] 13:44:07     INFO - runtests.py | Server pid: 31438
[task 2026-02-28T13:44:07.901+00:00] 13:44:07     INFO - runtests.py | Websocket server pid: 31439
[task 2026-02-28T13:44:07.901+00:00] 13:44:07     INFO - INFO | runtests.py | TSan using symbolizer at /builds/worker/workspace/build/application/firefox/llvm-symbolizer
[task 2026-02-28T13:44:07.901+00:00] 13:44:07     INFO - runtests.py | SSL tunnel pid: 31440
[task 2026-02-28T13:44:08.201+00:00] 13:44:08     INFO - use http3 server: 0
[task 2026-02-28T13:44:08.203+00:00] 13:44:08     INFO - runtests.py | Running with scheme: http
[task 2026-02-28T13:44:08.203+00:00] 13:44:08     INFO - runtests.py | Running with e10s: True
[task 2026-02-28T13:44:08.203+00:00] 13:44:08     INFO - runtests.py | Running with fission: True
[task 2026-02-28T13:44:08.204+00:00] 13:44:08     INFO - runtests.py | Running with cross-origin iframes: False
[task 2026-02-28T13:44:08.204+00:00] 13:44:08     INFO - runtests.py | Running with socketprocess_e10s: False
[task 2026-02-28T13:44:08.205+00:00] 13:44:08     INFO - runtests.py | Running http tests: start.
[task 2026-02-28T13:44:08.205+00:00] 13:44:08     INFO - 
[task 2026-02-28T13:44:08.207+00:00] 13:44:08     INFO - Application command: /builds/worker/workspace/build/application/firefox/firefox -marionette -remote-allow-system-access -foreground -profile /tmp/tmpy0e0txl1.mozrunner
[task 2026-02-28T13:44:08.212+00:00] 13:44:08     INFO - runtests.py | Application pid: 31484
[task 2026-02-28T13:44:08.212+00:00] 13:44:08     INFO - TEST-INFO | started process GECKO(31484)
[task 2026-02-28T13:44:10.661+00:00] 13:44:10     INFO - GECKO(31484) | libEGL warning: DRI3: Screen seems not DRI3 capable
[task 2026-02-28T13:44:10.662+00:00] 13:44:10     INFO - GECKO(31484) | libEGL warning: DRI3: Screen seems not DRI3 capable
[task 2026-02-28T13:44:10.717+00:00] 13:44:10     INFO - GECKO(31484) | MESA: error: ZINK: failed to choose pdev
[task 2026-02-28T13:44:10.721+00:00] 13:44:10     INFO - GECKO(31484) | 1772286250720	Marionette	INFO	Marionette enabled
[task 2026-02-28T13:44:10.729+00:00] 13:44:10     INFO - GECKO(31484) | libEGL warning: egl: failed to create dri2 screen
[task 2026-02-28T13:44:10.729+00:00] 13:44:10     INFO - GECKO(31484) | 1772286250728	Marionette	TRACE	Received observer notification final-ui-startup
[task 2026-02-28T13:44:11.193+00:00] 13:44:11     INFO - GECKO(31484) | console.error: "Warning: unrecognized command line flag" "-foreground"
[task 2026-02-28T13:44:11.350+00:00] 13:44:11     INFO - GECKO(31484) | 1772286251349	Marionette	INFO	Listening on port 2828
[task 2026-02-28T13:44:11.361+00:00] 13:44:11     INFO - GECKO(31484) | 1772286251360	Marionette	DEBUG	Marionette is listening
[task 2026-02-28T13:44:11.453+00:00] 13:44:11     INFO - GECKO(31484) | 1772286251452	Marionette	DEBUG	Accepted connection 0 from 127.0.0.1:35414
[task 2026-02-28T13:44:11.522+00:00] 13:44:11     INFO - GECKO(31484) | 1772286251521	Marionette	DEBUG	Closed connection 0
[task 2026-02-28T13:44:11.996+00:00] 13:44:11     INFO - GECKO(31484) | 1772286251995	Marionette	DEBUG	Accepted connection 1 from 127.0.0.1:35418
[task 2026-02-28T13:44:12.121+00:00] 13:44:12     INFO - GECKO(31484) | 1772286252120	Marionette	DEBUG	Closed connection 1
[task 2026-02-28T13:44:12.122+00:00] 13:44:12     INFO - GECKO(31484) | 1772286252121	Marionette	DEBUG	Accepted connection 2 from 127.0.0.1:35432
[task 2026-02-28T13:44:12.656+00:00] 13:44:12     INFO - GECKO(31484) | 1772286252655	Marionette	DEBUG	2 -> [0,1,"WebDriver:NewSession",{"strictFileInteractability":true}]
[task 2026-02-28T13:44:12.698+00:00] 13:44:12     INFO - GECKO(31484) | 1772286252697	Marionette	DEBUG	Waiting for initial application window
[task 2026-02-28T13:44:13.567+00:00] 13:44:13     INFO - GECKO(31484) | [Parent 31484: Main Thread]: I/SlowChromeEvent Please do not use mouseenter/leave events in chrome. They are slower than mouseover/out! chrome://browser/content/tabbrowser/tabs.js:51:12
[task 2026-02-28T13:44:16.640+00:00] 13:44:16     INFO - GECKO(31484) | warning: address range table at offset 0x78970 has a premature terminator entry at offset 0x789c0
[task 2026-02-28T13:44:16.641+00:00] 13:44:16     INFO - GECKO(31484) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7cda0
[task 2026-02-28T13:44:16.641+00:00] 13:44:16     INFO - GECKO(31484) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7cde0
[task 2026-02-28T13:44:16.642+00:00] 13:44:16     INFO - GECKO(31484) | warning: address range table at offset 0x7cc20 has a premature terminator entry at offset 0x7ce90
[taskcluster:error] Aborting task...
[taskcluster 2026-02-28T13:44:16.927Z] Command ABORTED after 1h0m0.000904155s: process aborted
[taskcluster 2026-02-28T13:44:16.927Z]  Average Available System Memory: 27.04 GiB
[taskcluster 2026-02-28T13:44:16.927Z]       Average System Memory Used: 4.30 GiB
[taskcluster 2026-02-28T13:44:16.927Z]          Peak System Memory Used: 9.18 GiB
[taskcluster 2026-02-28T13:44:16.927Z]              Total System Memory: 31.34 GiB
[taskcluster 2026-02-28T13:44:16.927Z] 
[taskcluster 2026-02-28T13:44:16.927Z] === Task Finished ===
[taskcluster 2026-02-28T13:44:16.927Z] Task Duration: 1h0m0.001232425s
[taskcluster 2026-02-28T13:44:19.337Z] [mounts] Preserving cache: Moving "/home/task_177228240272711/cache0" to "/home/generic-worker/caches/R5DeY7msQXe-1LYfZ3u6ug"
[taskcluster 2026-02-28T13:44:19.337Z] [mounts] Preserving cache: Moving "/home/task_177228240272711/cache1" to "/home/generic-worker/caches/RMwErMNWQx-tHhVdjYwKSg"
[taskcluster 2026-02-28T13:44:19.337Z] [mounts] Preserving cache: Moving "/home/task_177228240272711/cache2" to "/home/generic-worker/caches/Tw9OdY4TTpGpD7d8sYaeqw"
[taskcluster:error] task aborted - max run time exceeded

Comment 1

[amarc]

This has permafailed on this push, oddly backfills do not work for this job, and this job does not have "Test Groups"

Comment 2

[Intermittent Failures Robot]

7 failures were associated with this bug in the last 7 days.

Repository breakdown:

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

Table

	msix	no_variant
linux1804-x86_64/opt		1
linux2404-x86_64/tsan		1
windows11-x86_64/asan		4
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-02-23&endday=2026-03-01&tree=all

Comment 3

[Intermittent Failures Robot]

78 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-beta: 18
• mozilla-esr140: 29
• autoland: 20
• try: 4
• mozilla-esr115: 7

Table

	a11y-checks-swr	http3	msix	no_variant	s	swr
linux2204-x86_64/debug				3
linux2204-x86_64/opt				1
linux2404-x86_64/asan				1
linux2404-x86_64/debug		1		2	1
linux2404-x86_64/opt	2
linux2404-x86_64/tsan				3		1
macosx1470-x86_64/debug				1	1
windows11-x86/debug				10
windows11-x86/opt				5
windows11-x86_64/asan				19	1
windows11-x86_64/debug			5	18
windows11-x86_64/opt				2
windows7-x86/opt				1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-03&endday=2026-03-03&tree=all

Comment 4

[Intermittent Failures Robot]

34 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 26
• mozilla-beta: 5
• mozilla-central: 2
• try: 1

Table

	cf	no_variant	s	swr
linux2204-x86_64/debug		1	1
linux2404-x86_64/debug		13
linux2404-x86_64/opt		1
linux2404-x86_64/tsan				1
macosx1470-x86_64/debug			6
windows11-x86/debug		1
windows11-x86/opt		6
windows11-x86_64/asan		3
windows11-x86_64/ccov	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-04&endday=2026-03-04&tree=all

Comment 5

[Intermittent Failures Robot]

16 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 10
• mozilla-central: 4
• mozilla-beta: 2

Table

	msix	no_variant	s	swr
linux2404-x86_64/opt				2
linux2404-x86_64/tsan		1
macosx1470-x86_64/debug			2
windows11-x86/opt		2
windows11-x86_64/asan		6
windows11-x86_64/debug	2	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-05&endday=2026-03-05&tree=all

Comment 6

[Intermittent Failures Robot]

153 failures were associated with this bug in the last 7 days.
This is the #21 most frequent failure this week.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-beta: 32
• autoland: 73
• mozilla-esr140: 29
• try: 6
• mozilla-central: 6
• mozilla-esr115: 7

Table

	a11y-checks-swr	cf	http3	msix	no_variant	s	swr
linux2204-x86_64/debug					5	1
linux2204-x86_64/opt					1
linux2404-x86_64/asan					1
linux2404-x86_64/debug			1		15	1	3
linux2404-x86_64/opt	2				1		3
linux2404-x86_64/tsan					4		2
macosx1015-x86_64/debug					1
macosx1470-x86_64/debug					1	17
windows11-x86/debug					11
windows11-x86/opt					15
windows11-x86_64/asan					31	1
windows11-x86_64/ccov		1
windows11-x86_64/debug				10	22
windows11-x86_64/opt					2
windows7-x86/opt					1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-02&endday=2026-03-08&tree=all

Comment 7

[Intermittent Failures Robot]

60 failures were associated with this bug in the last 7 days.

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:

• mozilla-beta: 7
• mozilla-central: 12
• mozilla-esr140: 5
• autoland: 34
• try: 2

Table

	a11y-checks	msix	no_variant	nofis	s	swr
android-aarch64/opt				1
linux-x86/unknown build			1
linux1804-x86_64/asan			5
linux2204-x86_64/debug			1		1
linux2404-x86_64/debug						1
linux2404-x86_64/opt	2					1
macosx1470-x86_64/debug			1		14
windows11-x86/debug			6
windows11-x86/opt			2
windows11-x86_64/asan			17
windows11-x86_64/debug		3	1		3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-09&endday=2026-03-15&tree=all

Comment 8

[Intermittent Failures Robot]

20 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 5
• autoland: 11
• mozilla-beta: 1
• mozilla-central: 2
• try: 1

Table

	msix	no_variant	s	swr
linux1804-x86_64/asan		2		2
linux1804-x86_64/tsan		1
macosx1470-x86_64/debug			6
windows11-x86_64/asan		7
windows11-x86_64/debug	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-16&endday=2026-03-16&tree=all

Comment 9

[Intermittent Failures Robot]

16 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 12
• mozilla-central: 3
• try: 1

Table

	msix	no_variant	s
macosx1470-x86_64/debug			1
windows11-x86_64/asan		14
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-20&endday=2026-03-20&tree=all

Comment 10

[Intermittent Failures Robot]

60 failures were associated with this bug in the last 7 days.

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:

• mozilla-esr140: 6
• autoland: 39
• try: 3
• mozilla-beta: 3
• mozilla-central: 9

Table

	msix	no_variant	s	swr
linux1804-x86_64/asan		2		2
linux1804-x86_64/tsan		2
macosx1470-x86_64/debug			13
windows11-x86_64/asan		33
windows11-x86_64/debug	7
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-16&endday=2026-03-22&tree=all

Comment 11

[Intermittent Failures Robot]

16 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-beta: 3
• mozilla-central: 4
• autoland: 9

Table

	msix	no_variant	s
linux2404-x86_64/tsan		1
macosx1470-x86_64/debug			5
windows11-x86/debug		4
windows11-x86_64/asan		1
windows11-x86_64/debug	2	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-23&endday=2026-03-23&tree=all

Comment 12

[Intermittent Failures Robot]

23 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 16
• mozilla-central: 5
• mozilla-beta: 2

Table

	msix	no_variant	s
macosx1470-x86_64/debug			9
windows11-x86_64/asan		12
windows11-x86_64/debug	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-25&endday=2026-03-25&tree=all

Comment 13

[Intermittent Failures Robot]

20 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 1
• mozilla-beta: 12
• mozilla-central: 3
• autoland: 3
• try: 1

Table

	msix	no_variant	s
linux1804-x86_64/asan		1
linux2204-x86_64/debug			1
macosx1470-x86_64/debug			4
windows11-x86_64/asan		8
windows11-x86_64/debug	6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-27&endday=2026-03-27&tree=all

Comment 14

[Intermittent Failures Robot]

88 failures were associated with this bug in the last 7 days.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-central: 16
• mozilla-esr140: 3
• autoland: 42
• mozilla-beta: 26
• try: 1

Table

	msix	no_variant	s	xorig
android-x86_64/debug				1
linux1804-x86_64/asan		1
linux1804-x86_64/tsan		1
linux2204-x86_64/debug			2
linux2404-x86_64/tsan		6
macosx1470-x86_64/debug			22
windows11-x86/debug		6
windows11-x86_64/asan		32
windows11-x86_64/debug	13	4

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-23&endday=2026-03-29&tree=all

Comment 15

[Intermittent Failures Robot]

41 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 5
• mozilla-beta: 21
• autoland: 12
• mozilla-central: 3

Table

	msix	no_variant	s	swr
linux1804-x86_64/asan		1		1
linux1804-x86_64/tsan		2
linux2204-x86_64/debug		1
macosx1470-x86_64/debug			6
windows11-x86/debug		4
windows11-x86_64/asan		14
windows11-x86_64/debug	7	2	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-30&endday=2026-03-30&tree=all

Comment 16

[Intermittent Failures Robot]

15 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr115: 1
• mozilla-beta: 12
• autoland: 2

Table

	msix	no_variant	s
linux1804-x86_64/tsan		1
linux2204-x86_64/debug			2
macosx1470-x86_64/debug			3
windows11-x86_64/asan		6
windows11-x86_64/debug	2		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-31&endday=2026-03-31&tree=all

Comment 17

[Intermittent Failures Robot]

30 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 7
• mozilla-beta: 6
• autoland: 13
• mozilla-central: 3
• try: 1

Table

	msix	no_variant	s	swr
linux1804-x86_64/asan		4		1
linux1804-x86_64/tsan		2
linux2204-x86_64/opt		1
macosx1470-x86_64/debug			7
windows11-x86_64/asan		12
windows11-x86_64/debug	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-01&endday=2026-04-01&tree=all

Comment 18

[Intermittent Failures Robot]

17 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 5
• autoland: 5
• try: 2
• mozilla-release: 1
• mozilla-beta: 4

Table

	msix	no_variant	swr
linux1804-x86_64/asan		3	1
linux1804-x86_64/tsan		1
windows11-x86/debug		1
windows11-x86_64/asan		9
windows11-x86_64/debug	1	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-02&endday=2026-04-02&tree=all

Comment 19

[Intermittent Failures Robot]

113 failures were associated with this bug in the last 7 days.
This is the #33 most frequent failure this week.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-esr140: 19
• mozilla-esr115: 1
• mozilla-beta: 44
• autoland: 38
• mozilla-central: 7
• try: 3
• mozilla-release: 1

Table

	msix	no_variant	s	swr
linux1804-x86_64/asan		9		4
linux1804-x86_64/tsan		6
linux2204-x86_64/debug		1	2
linux2204-x86_64/opt		1
macosx1470-x86_64/debug		2	20
windows11-x86/debug		6
windows11-x86_64/asan		41
windows11-x86_64/debug	14	3	4

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-03-30&endday=2026-04-05&tree=all

Comment 20

[Intermittent Failures Robot]

15 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 4
• autoland: 5
• try: 1
• mozilla-beta: 5

Table

	no_variant	s	standalone	swr
linux-x86/unknown build	1
linux1804-x86_64/asan	1			1
linux1804-x86_64/tsan	1
macosx1470-x86_64/debug		4
windows11-x86/debug	2
windows11-x86_64/asan	3
windows11-x86_64/debug	1
windows11-x86_64/opt			1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-06&endday=2026-04-06&tree=all

Comment 21

[Intermittent Failures Robot]

20 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 2
• mozilla-esr115: 1
• autoland: 9
• mozilla-beta: 5
• mozilla-central: 2
• try: 1

Table

	msix	no_variant	s
linux1804-x86_64/asan		1
linux1804-x86_64/tsan		1
linux2204-x86_64/debug		1	2
macosx1470-x86_64/debug			8
windows11-x86/debug		2
windows11-x86_64/asan		3
windows11-x86_64/debug	1		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-07&endday=2026-04-07&tree=all

Comment 22

[Intermittent Failures Robot]

36 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 10
• mozilla-esr115: 1
• autoland: 9
• mozilla-beta: 13
• mozilla-central: 3

Table

	msix	no_variant	s	standalone
linux1804-x86_64/asan		3
linux1804-x86_64/tsan		7
linux2204-x86_64/debug			1
macosx1470-x86_64/debug			12
windows11-x86_64/asan		8
windows11-x86_64/debug	1	1	2	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-09&endday=2026-04-09&tree=all

Comment 23

[Intermittent Failures Robot]

109 failures were associated with this bug in the last 7 days.
This is the #45 most frequent failure this week.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-esr140: 31
• mozilla-esr115: 3
• autoland: 21
• mozilla-beta: 49
• mozilla-central: 5

Table

	msix	no_variant	s	standalone
linux1804-x86_64/asan		11
linux1804-x86_64/tsan		18
linux2204-x86_64/debug		1	2
macosx1470-x86_64/debug			20
windows11-x86/debug		9
windows11-x86_64/asan		28
windows11-x86_64/debug	8	4	5	2
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-08&endday=2026-04-14&tree=all

Comment 24

[Intermittent Failures Robot]

78 failures were associated with this bug in the last 7 days.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-esr140: 15
• autoland: 20
• mozilla-central: 11
• mozilla-beta: 31
• mozilla-esr115: 1

Table

	a11y-checks-swr	msix	no_variant	s	spi	standalone
linux1804-x86_64/asan			5
linux1804-x86_64/tsan			8
linux2204-x86_64/debug			2
linux2404-x86_64/asan			1
linux2404-x86_64/opt	5		2
macosx1470-x86_64/debug				3
windows11-x86/debug			10
windows11-x86_64/asan			18		1
windows11-x86_64/debug		4	5	3		9
windows11-x86_64/opt		1	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-13&endday=2026-04-19&tree=all

Comment 25

[Intermittent Failures Robot]

34 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 33
• mozilla-central: 1

Table

	fis-hv	no_variant	nofis	nofis-aab	xorig
android-x86_64/debug	2	7	6	3	4
android-x86_64/opt	3	3	1		2
windows11-x86/debug		1
windows11-x86/opt		1
windows11-x86_64/asan		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-20&endday=2026-04-20&tree=all

Comment 26

[Intermittent Failures Robot]

75 failures were associated with this bug in the last 7 days.
This is the #36 most frequent failure this week.

This failure happened more than 75 times this week! Resolving this bug is a very high priority.

Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 47
• mozilla-esr140: 15
• mozilla-central: 5
• mozilla-beta: 4
• mozilla-release: 4

Table

	fis-hv	msix	no_variant	nofis	nofis-aab	s	standalone	swr	xorig
android-x86_64/debug	2		7	6	3				4
android-x86_64/opt	3		3	1					2
linux1804-x86_64/asan			4					2
linux1804-x86_64/tsan			5
linux2204-x86_64/debug			1
linux2204-x86_64/opt			3
windows11-x86/debug			4
windows11-x86/opt			2
windows11-x86_64/asan			7
windows11-x86_64/debug			8			1	1
windows11-x86_64/opt		2	4

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-20&endday=2026-04-26&tree=all

Comment 27

[Intermittent Failures Robot]

24 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr140: 7
• mozilla-beta: 5
• autoland: 9
• mozilla-release: 1
• mozilla-central: 2

Table

	no_variant	s	standalone
linux1804-x86_64/asan	1
linux1804-x86_64/tsan	1
linux2204-x86_64/debug	1
linux2204-x86_64/opt	1
macosx1470-x86_64/debug		1
windows10-x86_64/debug	1
windows11-x86/debug	7
windows11-x86/opt	1
windows11-x86_64/asan	1
windows11-x86_64/debug	6		3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-04-27&endday=2026-05-03&tree=all

Comment 28

[Intermittent Failures Robot]

28 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr140: 4
• mozilla-beta: 3
• mozilla-central: 4
• autoland: 13
• mozilla-esr115: 1
• mozilla-release: 3

Table

	no_variant	s	standalone	swr
linux1804-x86_64/asan	2			2
linux2204-x86_64/debug	2	1
linux2204-x86_64/opt	1
windows11-x86/debug	9
windows11-x86_64/asan	4
windows11-x86_64/debug	3	1	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-05-04&endday=2026-05-10&tree=all

Comment 29

[Intermittent Failures Robot]

14 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• try: 1
• mozilla-release: 1
• mozilla-beta: 3
• mozilla-central: 3

Table

	no_variant	standalone
linux2204-x86_64/debug	1
windows11-x86/debug	4
windows11-x86_64/asan	3
windows11-x86_64/ccov	1
windows11-x86_64/debug	3	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-05-11&endday=2026-05-17&tree=all

Comment 30

[Intermittent Failures Robot]

27 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 18
• mozilla-beta: 3
• mozilla-central: 5
• try: 1

Table

	no_variant	standalone	xorig
android-aarch64/opt	1
android-x86_64/opt			3
linux2204-x86_64/debug	1
windows11-x86/debug	11
windows11-x86_64/asan	4
windows11-x86_64/ccov	1
windows11-x86_64/debug	3	2
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-05-18&endday=2026-05-24&tree=all

Comment 31

[Intermittent Failures Robot]

20 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 4
• mozilla-beta: 9
• mozilla-esr140: 1
• autoland: 5
• try: 1

Table

	no_variant	nofis
android-aarch64/debug		2
linux2204-x86_64/debug	2
windows11-x86/debug	11
windows11-x86_64/asan	4
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-05-25&endday=2026-05-31&tree=all

Comment 32

[Intermittent Failures Robot]

29 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 9
• autoland: 14
• mozilla-beta: 4
• try: 2

Table

	no_variant	nofis	swr
android-aarch64/debug		2
linux2204-x86_64/debug	1
linux2404-x86_64/opt	1
macosx1500-aarch64/opt	4
windows10-x86_64/debug	1
windows11-x86/debug	7		1
windows11-x86_64/asan	6
windows11-x86_64/ccov	1
windows11-x86_64/debug	5

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-01&endday=2026-06-07&tree=all

Comment 33

[Intermittent Failures Robot]

18 failures were associated with this bug yesterday.

Repository breakdown:

• mozilla-esr140: 1
• autoland: 14
• mozilla-beta: 2
• try: 1

Table

	msix	no_variant	s	spi	standalone
macosx1470-x86_64/debug			1
macosx1500-aarch64/opt		2
windows11-x86/debug		4
windows11-x86/opt		1
windows11-x86_64/asan		4		1
windows11-x86_64/debug	1	1			3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-09&endday=2026-06-09&tree=all

Comment 34

[Intermittent Failures Robot]

15 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 10
• mozilla-beta: 3
• mozilla-release: 1
• mozilla-central: 1

Table

	mda-gpu	no_variant	standalone
macosx1500-aarch64/opt		6
windows11-x86/debug		1
windows11-x86_64/asan		5
windows11-x86_64/debug		1	1
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-10&endday=2026-06-10&tree=all

Comment 35

[Intermittent Failures Robot]

63 failures were associated with this bug in the last 7 days.
This is the #31 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:

• mozilla-central: 11
• autoland: 38
• mozilla-esr140: 1
• mozilla-beta: 8
• mozilla-release: 1
• try: 4

Table

	1proc	mda-gpu	msix	no_variant	nofis	s	spi	standalone	xorig
android-aarch64/debug					2
linux2204-x86_64/debug				2
linux2404-x86_64/debug								1
macosx1470-x86_64/debug						1
macosx1500-aarch64/debug									1
macosx1500-aarch64/opt	1			14
windows11-x86/debug				10
windows11-x86/opt				1
windows11-x86_64/asan				12			1
windows11-x86_64/ccov				1
windows11-x86_64/debug			1	5				9
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-08&endday=2026-06-14&tree=all

Comment 36

[Intermittent Failures Robot]

21 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 12
• mozilla-beta: 3
• mozilla-central: 5
• mozilla-release: 1

Table

	1proc	no_variant	standalone
linux2204-x86_64/debug		1
linux2204-x86_64/opt		1
linux2404-x86_64/debug			2
macosx1500-aarch64/opt	1	1
windows11-x86/debug		6
windows11-x86_64/asan		4
windows11-x86_64/debug		1	4

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-15&endday=2026-06-15&tree=all

Comment 37

[Intermittent Failures Robot]

39 failures were associated with this bug in the last 7 days.

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:

• mozilla-esr140: 2
• autoland: 21
• mozilla-beta: 5
• mozilla-central: 7
• try: 1
• mozilla-release: 3

Table

	1proc	no_variant	s	standalone	xorig
linux1804-x86_64/asan		1
linux2204-x86_64/debug		2
linux2204-x86_64/opt		1
linux2404-x86_64/debug				3
macosx1470-x86_64/debug			1
macosx1500-aarch64/debug					1
macosx1500-aarch64/opt	1	5
windows11-x86/debug		8
windows11-x86_64/asan		8
windows11-x86_64/debug		2		6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-15&endday=2026-06-21&tree=all

Comment 38

[Intermittent Failures Robot]

18 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 12
• mozilla-central: 1
• try: 2
• mozilla-beta: 3

Table

	1proc	no_variant	xorig
linux2204-x86_64/debug		1
macosx1500-aarch64/debug			1
macosx1500-aarch64/opt	2	11	1
windows11-x86/debug		1
windows11-x86_64/debug		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-22&endday=2026-06-28&tree=all

Comment 39

[Intermittent Failures Robot]

28 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr140: 1
• mozilla-beta: 9
• autoland: 15
• try: 2
• mozilla-central: 1

Table

	no_variant
linux-x86/unknown build	1
linux2204-x86_64/debug	3
macosx1500-aarch64/opt	24

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-06-29&endday=2026-07-05&tree=all

Comment 40

[Intermittent Failures Robot]

10 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr140: 2
• autoland: 8

Table

	no_variant	xorig
linux-x86/unknown build	1
linux2204-x86_64/debug	2
macosx1500-aarch64/debug		1
macosx1500-aarch64/opt	6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-07-06&endday=2026-07-12&tree=all

Comment 41

[Serban Stanca [:SerbanS]]

Hi Andrew! Could you please check this? Lately there were some perma mochitests plain failures on Android 14.0 x86-64 Lite opt: https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&resultStatus=pending%2Crunning%2Csuccess%2Ctestfailed%2Cbusted%2Cexception&fromchange=8c5db93095b20fc4097f313887433d092b056e64&searchStr=android%2C14.0%2Cx86-64%2Clite%2Copt%2Cmochitests%2Cwith%2Ccross-origin%2Ctest-android-em-14-x86_64-lite%2Fopt-geckoview-mochitest-plain-xorig%2C1&selectedTaskRun=TM4d32z8TIeHAVZA87vRhQ.0.

Do you have any idea about what could have caused it?

Thank you!

Comment 42

[Intermittent Failures Robot]

51 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 42
• mozilla-esr140: 7
• mozilla-beta: 2

Table

	no_variant	nofis	swr	xorig
android-x86_64/opt	8	8		14
linux2204-x86_64/debug	1
linux2204-x86_64/opt	7
macosx1500-aarch64/opt	1
windows11-x86/debug			1
windows11-x86_64/debug	3		2
windows11-x86_64/opt	6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-07-14&endday=2026-07-14&tree=all

Comment 43

[Andrew Erickson [:aerickson]]

(In reply to Serban Stanca [:SerbanS] from comment #41)

Hi Andrew! Could you please check this? Lately there were some perma mochitests plain failures on Android 14.0 x86-64 Lite opt: https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&resultStatus=pending%2Crunning%2Csuccess%2Ctestfailed%2Cbusted%2Cexception&fromchange=8c5db93095b20fc4097f313887433d092b056e64&searchStr=android%2C14.0%2Cx86-64%2Clite%2Copt%2Cmochitests%2Cwith%2Ccross-origin%2Ctest-android-em-14-x86_64-lite%2Fopt-geckoview-mochitest-plain-xorig%2C1&selectedTaskRun=TM4d32z8TIeHAVZA87vRhQ.0.

Do you have any idea about what could have caused it?

Thank you!

I took a look at this. The selected task hit its 3600s max runtime; it wasn't failing a specific mochitest. It started at 00:13:09, was still starting tests at 01:13:10, and was killed at 01:13:23.

It looks like this job was scheduled as one chunk, even though the Android Nightly xorigin jobs are split into 5 chunks. The job has dynamic chunking enabled, but it seems the runtime data made it choose one chunk here.

This started shortly after dynamic chunking was enabled for mochitest-plain in bug 2017946, so I wonder if the timing data for this configuration is incomplete or otherwise underestimating the runtime.

Florian, could you take a look at the timing-data side? Do you know why this task would have been assigned one chunk?

Comment 44

[Intermittent Failures Robot]

65 failures were associated with this bug in the last 7 days.
This is the #47 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: 54
• mozilla-esr140: 7
• mozilla-beta: 4

Table

	no_variant	nofis	swr	xorig
android-x86_64/opt	9	9		16
linux2204-x86_64/debug	2
linux2204-x86_64/opt	8
macosx1500-aarch64/opt	8
windows11-x86/debug	1		1
windows11-x86_64/debug	3		2
windows11-x86_64/opt	6

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-07-13&endday=2026-07-19&tree=all

Comment 45

[Intermittent Failures Robot]

22 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 13
• mozilla-beta: 5
• try: 2
• mozilla-esr153: 2

Table

	no_variant
linux2204-x86_64/debug	1
linux2204-x86_64/opt	1
macosx1500-aarch64/opt	19
windows11-x86/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-07-20&endday=2026-07-26&tree=all

Comment 46

[Intermittent Failures Robot]

10 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 2
• autoland: 5
• mozilla-beta: 2
• mozilla-release: 1

Table

	no_variant	nofis
android-aarch64/debug		1
linux2204-x86_64/opt	1
macosx1500-aarch64/opt	8

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-07-27&endday=2026-08-02&tree=all

Comment 47

[Intermittent Failures Robot]

20 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 8
• mozilla-central: 2
• mozilla-beta: 6
• mozilla-esr153: 4

Table

	fis-hv	headless	no_variant	wmfme
android-x86_64/debug	1
linux2404-x86_64/opt		1
macosx1500-aarch64/opt			17
windows11-x86_64/opt				1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-08-03&endday=2026-08-09&tree=all

Comment 48

[Intermittent Failures Robot]

11 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 3
• mozilla-beta: 4
• mozilla-release: 1
• mozilla-esr153: 2

Table

	no_variant	nogpu
linux2204-x86_64/opt	1
macosx1500-aarch64/opt	9
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2020146&startday=2026-08-10&endday=2026-08-16&tree=all