1880706 - Permafailing QA test_pdf_navigation | StaleElementReferenceException()

Status: RESOLVED FIXED

(Firefox Build System :: Task Configuration, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: ncsoregi [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=447549211&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/UBiq7_ULSymd5bTuvKgz2Q/runs/0/artifacts/public/logs/live_backing.log

---

[task 2024-02-17T01:45:28.012Z] TEST-START | test_pdf_navigation
[task 2024-02-17T01:45:37.688Z] Saving screenshot 'screenshot_error.png' to '/home/ubuntu/tasks/task_170813342113338/builds/worker/artifacts/screenshot_error.png'
[task 2024-02-17T01:45:37.901Z] Saving screenshot 'screenshot_error_parent.png' to '/home/ubuntu/tasks/task_170813342113338/builds/worker/artifacts/screenshot_error_parent.png'
[task 2024-02-17T01:45:38.109Z] TEST-UNEXPECTED-ERROR | test_pdf_navigation | StaleElementReferenceException()
[task 2024-02-17T01:45:38.109Z] TEST-INFO took 10097ms
[task 2024-02-17T01:45:38.132Z] Traceback (most recent call last):
[task 2024-02-17T01:45:38.132Z]   File "/home/ubuntu/tasks/task_170813342113338/fetches/basic_tests.py", line 77, in __init__
[task 2024-02-17T01:45:38.132Z]     rv = getattr(self, m)(self._expectations[m])
[task 2024-02-17T01:45:38.133Z]   File "/home/ubuntu/tasks/task_170813342113338/fetches/qa_tests.py", line 306, in test_pdf_navigation
[task 2024-02-17T01:45:38.133Z]     self.assert_rendering(exp["base"], page_1)
[task 2024-02-17T01:45:38.133Z]   File "/home/ubuntu/tasks/task_170813342113338/fetches/basic_tests.py", line 149, in assert_rendering
[task 2024-02-17T01:45:38.133Z]     element_or_driver.screenshot_as_png
[task 2024-02-17T01:45:38.133Z]   File "/home/ubuntu/.local/lib/python3.10/site-packages/selenium/webdriver/remote/webelement.py", line 325, in screenshot_as_png
[task 2024-02-17T01:45:38.133Z]     return b64decode(self.screenshot_as_base64.encode("ascii"))
[task 2024-02-17T01:45:38.134Z]   File "/home/ubuntu/.local/lib/python3.10/site-packages/selenium/webdriver/remote/webelement.py", line 314, in screenshot_as_base64
[task 2024-02-17T01:45:38.134Z]     return self._execute(Command.ELEMENT_SCREENSHOT)["value"]
[task 2024-02-17T01:45:38.134Z]   File "/home/ubuntu/.local/lib/python3.10/site-packages/selenium/webdriver/remote/webelement.py", line 394, in _execute
[task 2024-02-17T01:45:38.134Z]     return self._parent.execute(command, params)
[task 2024-02-17T01:45:38.134Z]   File "/home/ubuntu/.local/lib/python3.10/site-packages/selenium/webdriver/remote/webdriver.py", line 344, in execute
[task 2024-02-17T01:45:38.134Z]     self.error_handler.check_response(response)
[task 2024-02-17T01:45:38.134Z]   File "/home/ubuntu/.local/lib/python3.10/site-packages/selenium/webdriver/remote/errorhandler.py", line 229, in check_response
[task 2024-02-17T01:45:38.134Z]     raise exception_class(message, screen, stacktrace)
[task 2024-02-17T01:45:38.135Z] selenium.common.exceptions.StaleElementReferenceException: Message: The element with the reference f2401a69-5a1a-47c8-8b8e-c8adccfe4de2 is stale; either its node document is not the active document, or it is no longer connected to the DOM; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors#stale-element-reference-exception
[task 2024-02-17T01:45:38.135Z] Stacktrace:
[task 2024-02-17T01:45:38.135Z] RemoteError@chrome://remote/content/shared/RemoteError.sys.mjs:8:8
[task 2024-02-17T01:45:38.135Z] WebDriverError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:192:5
[task 2024-02-17T01:45:38.135Z] StaleElementReferenceError@chrome://remote/content/shared/webdriver/Errors.sys.mjs:724:5
[task 2024-02-17T01:45:38.135Z] getKnownElement@chrome://remote/content/marionette/json.sys.mjs:401:11
[task 2024-02-17T01:45:38.135Z] deserializeJSON@chrome://remote/content/marionette/json.sys.mjs:259:20
[task 2024-02-17T01:45:38.135Z] cloneObject@chrome://remote/content/marionette/json.sys.mjs:59:24
[task 2024-02-17T01:45:38.135Z] deserializeJSON@chrome://remote/content/marionette/json.sys.mjs:289:16
[task 2024-02-17T01:45:38.135Z] json.deserialize@chrome://remote/content/marionette/json.sys.mjs:293:10
[task 2024-02-17T01:45:38.135Z] receiveMessage@chrome://remote/content/marionette/actors/MarionetteCommandsChild.sys.mjs:72:30
[task 2024-02-17T01:45:38.135Z] 
[task 2024-02-17T01:45:42.878Z] Exiting with False
[task 2024-02-17T01:45:42.879Z] SUITE-END | took 270s

Comment 1

[Intermittent Failures Robot]

7 failures in 3125 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 7

Platform and build breakdown:

• linux64-snap-nightly: 7
  • debug: 7

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880706&startday=2024-02-12&endday=2024-02-18&tree=all

Comment 2

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

Set release status flags based on info from the regressing bug 1866798

Comment 3

[Intermittent Failures Robot]

3 failures in 3382 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3

Platform and build breakdown:

• linux64-snap-beta: 2
  • debug: 2
• linux64-snap-esr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880706&startday=2024-02-19&endday=2024-02-25&tree=all

Comment 4

[Intermittent Failures Robot]

1 failures in 4052 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• linux64-snap-stable: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880706&startday=2024-02-26&endday=2024-03-03&tree=all

Comment 5

[:gerard-majax]

this should be good now, please reopen if it recurs