Bug: Intermittent None [@ mozilla::perfecthash::Hash<char>] | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-10-06 13:36:40+00:00
Resolved: 2023-11-03 12:03:21+00:00

**Filed by:** smolnar [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=431567586&repo=try
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/cJDZbLQwSOiiJgfugrw0BA/runs/0/artifacts/public/logs/live_backing.log

---
```
TEST-START | tabswitch
[task 2023-10-06T12:56:18.055Z] 12:56:18     INFO -  Initialising browser for tabswitch test...
[task 2023-10-06T12:56:18.055Z] 12:56:18     INFO -  Cloning profile located at /home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/base_profile
[task 2023-10-06T12:56:18.056Z] 12:56:18     INFO -  Merging profile: /home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/profile_data/base
[task 2023-10-06T12:56:18.062Z] 12:56:18     INFO -  Merging profile: /home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/profile_data/common
[task 2023-10-06T12:56:18.067Z] 12:56:18     INFO -  Merging profile: /home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/profile_data/perf
[task 2023-10-06T12:56:18.075Z] 12:56:18     INFO -  Installing Add-ons:
[task 2023-10-06T12:56:18.076Z] 12:56:18     INFO -  ['/home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/talos-powers', '/home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/tests/tabswitch', '/home/cltbld/tasks/task_169659689423635/build/tests/talos/talos/pageloader']
[task 2023-10-06T12:56:18.080Z] 12:56:18     INFO -  Installing Webextensions:
[task 2023-10-06T12:56:18.081Z] 12:56:18     INFO -  Application command: /home/cltbld/tasks/task_169659689423635/build/application/firefox/firefox http://127.0.0.1:51123/getInfo.html -profile /tmp/tmpjayky4h1/profile
[task 2023-10-06T12:56:18.083Z] 12:56:18     INFO -  TEST-INFO | started process 2831 (/home/cltbld/tasks/task_169659689423635/build/application/firefox/firefox http://127.0.0.1:51123/getInfo.html)
[task 2023-10-06T12:56:18.717Z] 12:56:18     INFO -  ATTENTION: default value of option mesa_glthread overridden by environment.
[task 2023-10-06T12:56:18.807Z] 12:56:18     INFO -  ATTENTION: default value of option mesa_glthread overridden by environment.
[task 2023-10-06T12:56:19.398Z] 12:56:19     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:19.582Z] 12:56:19     INFO -  console.error: ({})
[task 2023-10-06T12:56:19.616Z] 12:56:19     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:19.891Z] 12:56:19     INFO -  console.error: (new TypeError("this._searchProviderInfo is null", "resource:///modules/SearchSERPTelemetry.sys.mjs", 685))
[task 2023-10-06T12:56:19.962Z] 12:56:19     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:19.966Z] 12:56:19     INFO -  __metrics
[task 2023-10-06T12:56:19.967Z] 12:56:19     INFO -  	Screen width/height: 1600/1200
[task 2023-10-06T12:56:19.967Z] 12:56:19     INFO -  	colorDepth: 24
[task 2023-10-06T12:56:19.967Z] 12:56:19     INFO -  	Browser inner width/height: 1280/955
[task 2023-10-06T12:56:19.967Z] 12:56:19     INFO -  __metrics
[task 2023-10-06T12:56:19.986Z] 12:56:19     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.079Z] 12:56:20     INFO -  JavaScript warning: resource://gre/modules/Troubleshoot.sys.mjs, line 737: WebGL context was lost.
[task 2023-10-06T12:56:20.085Z] 12:56:20     INFO -  JavaScript warning: resource://gre/modules/Troubleshoot.sys.mjs, line 737: WebGL context was lost.
[task 2023-10-06T12:56:20.310Z] 12:56:20     INFO -  about:support	{"application":{"name":"Firefox","osVersion":"Linux 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023","version":"120.0b1","buildID":"20231006094824","distributionID":"","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/120.0","safeMode":false,"memorySizeBytes":16681885696,"diskAvailableBytes":31175749632,"updateChannel":"beta","supportURL":"https://support.mozilla.org/1/firefox/120.0/Linux/en-US/","osTheme":"Adwaita / 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[task 2023-10-06T12:56:20.322Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.480Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.480Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.480Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.481Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.481Z] 12:56:20     INFO -  console.error: (new Error("Unexpected content-type \"text/plain;charset=US-ASCII\"", "resource://services-settings/Utils.sys.mjs", 399))
[task 2023-10-06T12:56:20.966Z] 12:56:20    ERROR -  JavaScript error: moz-extension://09864f37-d821-4df4-8c04-6db2eeb0c85b/content/tabswitch-content-process.js, line 18: TypeError: extensionPolicy is null
[task 2023-10-06T12:56:20.972Z] 12:56:20    ERROR -  JavaScript error: moz-extension://09864f37-d821-4df4-8c04-6db2eeb0c85b/content/tabswitch-content-process.js, line 18: TypeError: extensionPolicy is null
[task 2023-10-06T12:56:22.184Z] 12:56:22     INFO -  TEST-INFO | 2831: exit 0
[task 2023-10-06T12:56:22.184Z] 12:56:22     INFO -  Browser initialized.
[task 2023-10-06T12:56:22.184Z] 12:56:22     INFO -  Fission enabled: True
[task 2023-10-06T12:56:22.435Z] 12:56:22     INFO -  Running cycle 1/1 for tabswitch test...
[task 2023-10-06T12:56:22.440Z] 12:56:22     INFO -  Using env: {'COLORTERM': 'truecolor',
INFO -   'DBUS_SESSION_BUS_ADDRESS': 'unix:path=/run/user/1006/bus',
[task 2023-10-06T12:56:22.440Z] 12:56:22     INFO -   'DESKTOP_AUTOSTART_ID': '109451e196c4c91cd5169659682692459200000008560018',
[task 2023-10-06T12:56:22.440Z] 12:56:22     INFO -   'DISPLAY': ':0',
[task 2023-10-06T12:56:22.441Z] 12:56:22     INFO -   'EXTRA_MOZHARNESS_CONFIG': '{"installer_url": '
[task 2023-10-06T12:56:22.441Z] 12:56:22     INFO -                              '"https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WcQQSe3rTaya61cAiBmqOA/artifacts/public/build/target.tar.bz2", '
[task 2023-10-06T12:56:22.441Z] 12:56:22     INFO -                              '"test_packages_url": '
[task 2023-10-06T12:56:22.442Z] 12:56:22     INFO -                              '"https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WcQQSe3rTaya61cAiBmqOA/artifacts/public/build/target.test_packages.json"}',
[task 2023-10-06T12:56:22.442Z] 12:56:22     INFO -   'GECKO_HEAD_REPOSITORY': 'https://hg.mozilla.org/try',
[task 2023-10-06T12:56:22.442Z] 12:56:22     INFO -   'GECKO_HEAD_REV': '268ec594d38b8b4ec02f3645a64beae25613a922',
[task 2023-10-06T12:56:22.442Z] 12:56:22     INFO -   'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated',
[task 2023-10-06T12:56:22.442Z] 12:56:22     INFO -   'GNOME_TERMINAL_SCREEN': '/org/gnome/Terminal/screen/a4f2fda0_0f0e_4bd6_88cf_56b129905d22',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'GNOME_TERMINAL_SERVICE': ':1.65',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'GPG_AGENT_INFO': '/run/user/1006/gnupg/S.gpg-agent:0:1',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'GTK_MODULES': 'gail:atk-bridge',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'HOME': '/home/cltbld',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'LANG': 'en_US.UTF-8',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'LANGUAGE': 'en_US:en',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'LD_LIBRARY_PATH': '/home/cltbld/tasks/task_169659689423635/build/application/firefox',
[task 2023-10-06T12:56:22.443Z] 12:56:22     INFO -   'LOGNAME': 'cltbld',
[task 2023-10-06T12:56:22.444Z] 12:56:22     INFO -   'MAIL': '/var/mail/cltbld',
[task 2023-10-06T12:56:22.444Z] 12:56:22     INFO -   'MANPATH': ':/opt/puppetlabs/puppet/share/man',
[task 2023-10-06T12:56:22.444Z] 12:56:22     INFO -   'MINIDUMP_SAVE_PATH': '/home/cltbld/tasks/task_169659689423635/build/blobber_upload_dir',
[task 2023-10-06T12:56:22.444Z] 12:56:22     INFO -   'MINIDUMP_STACKWALK': '/home/cltbld/tasks/task_169659689423635/fetches/minidump-stackwalk/minidump-stackwalk',
[task 2023-10-06T12:56:22.444Z] 12:56:22     INFO -   'MOZ_AUTOMATION': '1',
<...>
```