1880471 - Intermittent AssertionError: cannot call write() after FIN

Status: RESOLVED INCOMPLETE

(Testing :: web-platform-tests, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: imoraru [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=447372116&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/RDoYRS1ZRmqMFzRnCoG-SA/runs/0/artifacts/public/logs/live_backing.log

---

[task 2024-02-15T12:37:21.849Z] 12:37:21     INFO - TEST-START | /webtransport/streams-echo.https.any.worker.html
[task 2024-02-15T12:37:21.851Z] 12:37:21     INFO - Closing window 8b9b0a34-3cd7-4b2c-aea0-51074e509417
[task 2024-02-15T12:37:21.853Z] 12:37:21  WARNING - wptserve cannot call write() after FIN
[task 2024-02-15T12:37:21.854Z] 12:37:21     INFO - Test harness output was not a valid structured log message
[task 2024-02-15T12:37:21.854Z] 12:37:21     INFO - Traceback (most recent call last):
[task 2024-02-15T12:37:21.855Z] 12:37:21     INFO -   File "Z:\task_170799685886953\build\tests\web-platform\tests\tools\webtransport\h3\webtransport_h3_server.py", line 450, in _run_callback
[task 2024-02-15T12:37:21.856Z] 12:37:21     INFO -     self._callbacks[callback_name](*args, **kwargs)
[task 2024-02-15T12:37:21.856Z] 12:37:21     INFO -   File "/webtransport/handlers/echo.py", line 29, in stream_data_received
[task 2024-02-15T12:37:21.856Z] 12:37:21     INFO -   File "Z:\task_170799685886953\build\tests\web-platform\tests\tools\webtransport\h3\webtransport_h3_server.py", line 399, in send_stream_data
[task 2024-02-15T12:37:21.857Z] 12:37:21     INFO -     self._http._quic.send_stream_data(stream_id=stream_id,
[task 2024-02-15T12:37:21.857Z] 12:37:21     INFO -   File "Z:\task_170799685886953\build\venv\lib\site-packages\aioquic\quic\connection.py", line 1099, in send_stream_data
[task 2024-02-15T12:37:21.858Z] 12:37:21     INFO -     stream.sender.write(data, end_stream=end_stream)
[task 2024-02-15T12:37:21.858Z] 12:37:21     INFO -   File "Z:\task_170799685886953\build\venv\lib\site-packages\aioquic\quic\stream.py", line 300, in write
[task 2024-02-15T12:37:21.858Z] 12:37:21     INFO -     assert self._buffer_fin is None, "cannot call write() after FIN"
[task 2024-02-15T12:37:21.859Z] 12:37:21     INFO - AssertionError: cannot call write() after FIN
[task 2024-02-15T12:37:22.476Z] 12:37:22     INFO - ..........
[task 2024-02-15T12:37:22.476Z] 12:37:22     INFO - TEST-OK | /webtransport/streams-echo.https.any.worker.html | took 627ms
[task 2024-02-15T12:37:22.477Z] 12:37:22     INFO - Restarting browser for new test group
[task 2024-02-15T12:37:22.479Z] 12:37:22     INFO - PID 7340 | 1708000642473	Marionette	INFO	Stopped listening on port 62204
[task 2024-02-15T12:37:23.088Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.088Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.089Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.090Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.090Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.091Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.091Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.093Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.093Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:23.094Z] 12:37:23     INFO - PID 7340 | JavaScript error: , line 0: WebTransportError: remote WebTransport close
[task 2024-02-15T12:37:27.775Z] 12:37:27     INFO - PID 7340 | console.error: ({})
[task 2024-02-15T12:37:28.063Z] 12:37:28     INFO - Browser exited with return code 0
[task 2024-02-15T12:37:28.064Z] 12:37:28     INFO - Closing logging queue
[task 2024-02-15T12:37:28.065Z] 12:37:28     INFO - queue closed
[task 2024-02-15T12:37:28.190Z] 12:37:28     INFO - Application command: Z:\task_170799685886953\build\application\firefox\firefox.exe -marionette about:blank --wait-for-browser -profile C:\Users\task_170799685886953\AppData\Local\Temp\tmpbz4i0zlw
[task 2024-02-15T12:37:28.199Z] 12:37:28     INFO - PID 9448 | 1708000593883	Marionette	INFO	Marionette enabled
[task 2024-02-15T12:37:28.199Z] 12:37:28     INFO - PID 9448 | 1708000593950	Marionette	INFO	Listening on port 62219
[task 2024-02-15T12:37:28.200Z] 12:37:28     INFO - PID 9448 | [ERROR error_support::handling] suggest-unexpected: Error from Remote Settings: Error parsing URL: relative URL with a cannot-be-a-base base
[task 2024-02-15T12:37:28.201Z] 12:37:28     INFO - Starting runner
[task 2024-02-15T12:37:29.422Z] 12:37:29     INFO - TEST-START | /webxr/events_input_source_recreation.https.html

Comment 1

[Intermittent Failures Robot]

2 failures in 3125 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 1

Platform and build breakdown:

• windows11-64-2009-shippable-qr: 1
  • opt: 1
• windows11-32-2009-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-02-12&endday=2024-02-18&tree=all

Comment 2

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

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

Comment 3

[Treeherder Bug Filer]

New failure instance: https://treeherder.mozilla.org/logviewer?job_id=457328215&repo=autoland

Comment 4

[Intermittent Failures Robot]

1 failures in 3649 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-05-06&endday=2024-05-12&tree=all

Comment 5

[Intermittent Failures Robot]

3 failures in 3649 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• mozilla-central: 2

Platform and build breakdown:

• windows11-32-2009-qr: 2
  • debug: 2
• windows11-64-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-06-03&endday=2024-06-09&tree=all

Comment 6

[Intermittent Failures Robot]

2 failures in 4625 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1
• mozilla-central: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1
• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-06-10&endday=2024-06-16&tree=all

Comment 7

[Intermittent Failures Robot]

1 failures in 4577 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Platform and build breakdown:

• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-06-17&endday=2024-06-23&tree=all

Comment 8

[Intermittent Failures Robot]

2 failures in 3780 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1
• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-07-08&endday=2024-07-14&tree=all

Comment 9

[Intermittent Failures Robot]

2 failures in 3799 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1
• autoland: 1

Platform and build breakdown:

• windows11-32-2009-qr: 1
  • debug: 1
• windows11-64-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-07-15&endday=2024-07-21&tree=all

Comment 10

[Intermittent Failures Robot]

1 failures in 4124 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-07-22&endday=2024-07-28&tree=all

Comment 11

[Intermittent Failures Robot]

1 failures in 3839 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-07-29&endday=2024-08-04&tree=all

Comment 12

[Intermittent Failures Robot]

2 failures in 2154 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• autoland: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1
• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-08-12&endday=2024-08-18&tree=all

Comment 13

[Intermittent Failures Robot]

1 failures in 4860 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-09-16&endday=2024-09-22&tree=all

Comment 14

[Intermittent Failures Robot]

1 failures in 3574 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• windows11-64-2009-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-09-30&endday=2024-10-06&tree=all

Comment 15

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

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

Comment 16

[Treeherder Bug Filer]

New failure instance: https://treeherder.mozilla.org/logviewer?job_id=480016194&repo=autoland

Comment 17

[Intermittent Failures Robot]

1 failures in 4361 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-10-28&endday=2024-11-03&tree=all

Comment 18

[Intermittent Failures Robot]

2 failures in 3002 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-asan-qr: 1
  • opt: 1
• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-11-18&endday=2024-11-24&tree=all

Comment 19

[Intermittent Failures Robot]

1 failures in 3953 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr128: 1

Platform and build breakdown:

• windows11-32-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-11-25&endday=2024-12-01&tree=all

Comment 20

[Intermittent Failures Robot]

1 failures in 4722 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-12-02&endday=2024-12-08&tree=all

Comment 21

[Intermittent Failures Robot]

Summary

1 failures in 4615 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr128: 1

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1

Table

	1proc	1proc-s	1proc-swr	a11y-checks	a11y-checks-s	a11y-checks-swr	a11y-checks-swr-s	condprof	condprof-s	fis	fis-hv	fis-hv-s	fis-s	headless	headless-s	http2	http3	mda-gpu	mda-gpu-s	msix	msix-s	no_variant	nofis	nofis-aab	nofis-s	nofis-ship	nofis-ship-s	nofis-spi	nofis-swr	nofis-swr-s	nogpu	nogpu-s	s	spi	spi-nw	spi-nw-1proc	spi-nw-nofis	spi-nw-nofis-s	spi-nw-s	spi-s	swr	swr-s	wmfme	wmfme-s	wr-dc0	wr-dc0-s	wr-dc1-p	wr-dc2-o	wr-dc3-c	wr-dc3-c-s	xorig	xorig-s
windows11-64-2009-qr/debug																						1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-12-09&endday=2024-12-15&tree=all

Comment 22

[Intermittent Failures Robot]

Summary

2 failures in 900 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• mozilla-beta: 1

Platform and build breakdown:

• linux1804-32-shippable-qr: 1
  • opt: 1
• windows11-64-2009-qr: 1
  • debug: 1

Table

	1proc	1proc-s	a11y-checks-swr-s	fis	fis-hv	fis-hv-s	fis-s	headless	headless-s	http2	no_variant	nofis	nofis-aab	nofis-s	nofis-ship	nofis-ship-s	nofis-spi	nofis-swr	nogpu	nogpu-s	s	spi-nw	swr	swr-s	wmfme	wmfme-s	xorig	xorig-s
linux1804-32-shippable-qr/opt																					1
windows11-64-2009-qr/debug											1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-12-23&endday=2024-12-29&tree=all

Comment 23

[Intermittent Failures Robot]

Summary

1 failures in 1319 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-ccov-qr: 1
  • opt: 1

Table

	no_variant
linux1804-64-ccov-qr/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2024-12-30&endday=2025-01-05&tree=all

Comment 24

[Intermittent Failures Robot]

Summary

2 failures in 4508 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform and build breakdown:

• linux1804-32-qr: 1
  • opt: 1
• windows11-64-2009-qr: 1
  • debug: 1

Table

	no_variant
linux1804-32-qr/-/opt	1
windows11-64-2009-qr/-/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-01-13&endday=2025-01-19&tree=all

Comment 25

[Intermittent Failures Robot]

Summary

1 failures in 4035 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-ccov-qr: 1
  • opt: 1

Table

	no_variant
linux1804-64-ccov-qr--/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-01-20&endday=2025-01-26&tree=all

Comment 26

[Intermittent Failures Robot]

Summary

2 failures in 4566 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-asan-qr: 1
  • opt: 1
• linux1804-64-ccov-qr: 1
  • opt: 1

Table

	no_variant
linux1804-64-asan-qr--/opt	1
linux1804-64-ccov-qr--/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-01-27&endday=2025-02-02&tree=all

Comment 27

[Intermittent Failures Robot]

Summary

1 failures in 4309 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform and build breakdown:

• linux1804-64-qr: 1
  • opt: 1

Table

	nofis
linux1804-64-qr--/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-02-03&endday=2025-02-09&tree=all

Comment 28

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

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

Comment 29

[Intermittent Failures Robot]

Summary

2 failures in 5035 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform and build breakdown:

• linux1804-32-qr: 2
  • opt: 2

Table

	no_variant
linux1804-32-qr--/opt	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-03-17&endday=2025-03-23&tree=all

Comment 30

[Intermittent Failures Robot]

Repository breakdown:

• autoland: 1

Table

	no_variant
windows11-32-24h2--/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-03-24&endday=2025-03-30&tree=all

Comment 31

[Intermittent Failures Robot]

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

Repository breakdown:

• mozilla-central: 1

Table

	no_variant
windows11-64-24h2--/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-04-07&endday=2025-04-13&tree=all

Comment 32

[Intermittent Failures Robot]

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

Repository breakdown:

• autoland: 1
• mozilla-esr128: 1

Table

	no_variant
linux1804-x86_64/asan	1
windows11-x86/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-05-05&endday=2025-05-11&tree=all

Comment 33

[Intermittent Failures Robot]

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

Repository breakdown:

• mozilla-central: 1

Table

	nofis
linux2404-x86_64/asan	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-07-28&endday=2025-08-03&tree=all

Comment 34

[Intermittent Failures Robot]

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

Repository breakdown:

• mozilla-central: 1

Table

	nofis
linux2404-x86_64/asan	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1880471&startday=2025-11-17&endday=2025-11-23&tree=all