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Merged
chromium-wpt-export-bot merged 1 commit into from
Jan 12, 2026

WebNN: Retry createContext to avoid service connection error

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Merged

WebNN: Retry createContext to avoid service connection error #57049

WebNN: Retry createContext to avoid service connection error
6378655
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Community-TC Integration / wpt-chrome-dev-results-without-changes succeeded Jan 12, 2026 in 12m 35s

Community-TC (pull_request)

Collect results for all tests affected by a pull request in chrome but without the changes in the PR.

Details

View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster

Task Status

Started: 2026-01-12T06:02:11.753Z
Resolved: 2026-01-12T06:13:43.819Z
Task Execution Time: 11 minutes, 32 seconds, 66 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0

Artifacts

- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
- public/results/wpt_report.json.gz
- public/results/wpt_screenshot.txt.gz

WPT Command: python3 ./wpt run --channel=dev --no-fail-on-unexpected --log-wptreport=../artifacts/wpt_report.json --log-wptscreenshot=../artifacts/wpt_screenshot.txt --affected task_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --verify-log-full --no-headless --enable-swiftshader --install-browser --install-webdriver chrome

[taskcluster 2026-01-12 06:02:11.947Z] Task ID: Os1oLFA9Qw-JuncgfU0B8w
[taskcluster 2026-01-12 06:02:11.947Z] Worker ID: 1643832812174389464
[taskcluster 2026-01-12 06:02:11.947Z] Worker Group: us-east1-c
[taskcluster 2026-01-12 06:02:11.947Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-12 06:02:11.947Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-12 06:02:11.947Z] Worker Version: 46.1.0
[taskcluster 2026-01-12 06:02:11.947Z] Public IP: 34.74.184.13
[taskcluster 2026-01-12 06:02:11.947Z] Hostname: proj-wpt-ci-v-t6vkb7rwwyv46g2qr0tw

ac811f28856d - Started downloading
ac811f28856d - Downloaded in 0.036 seconds
8f84a9f2102e - Started downloading
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44ebbf800033 - Started downloading
44ebbf800033 - Downloaded in 0.048 seconds
8f84a9f2102e - Downloaded in 0.204 seconds
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4f4fb700ef54 - Downloaded in 0.001 seconds
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...(5532 lines hidden)...

    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] pad float16 4D tensor options.mode='edge' - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': The edge padding mode is not supported in tflite schema."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
/webnn/conformance_tests/qdq_subgraph.https.any.serviceworker.html?npu
  ERROR /webnn/conformance_tests/qdq_subgraph.https.any.serviceworker.html?npu - WebDriverRun.run_func didn't set a result
/webnn/conformance_tests/scatterElements.https.any.html?cpu
  FAIL [required] scatterElements float32 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float32 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
/webnn/conformance_tests/scatterElements.https.any.html?gpu
  FAIL [required] scatterElements float32 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float32 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
/webnn/conformance_tests/scatterElements.https.any.html?npu
  FAIL [required] scatterElements float32 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float32 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 0 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
  FAIL [required] scatterElements float16 tensors along axis 1 - promise_test: Unhandled rejection with value: object "NotSupportedError: Failed to execute 'build' on 'MLGraphBuilder': scatterElements only supports constant indices."
Error
    at get_stack (https://web-platform.test:8443/resources/testharness.js:4802:21)
    at new AssertionError (https://web-platform.test:8443/resources/testharness.js:4795:22)
    at assert (https://web-platform.test:8443/resources/testharness.js:4779:19)
    at Test.<anonymous> (https://web-platform.test:8443/resources/testharness.js:764:29)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at https://web-platform.test:8443/resources/testharness.js:2916:35
/webnn/conformance_tests/subgraph.https.any.html?cpu
  TIMEOUT /webnn/conformance_tests/subgraph.https.any.html?cpu
/webnn/conformance_tests/subgraph.https.any.html?gpu
  ERROR /webnn/conformance_tests/subgraph.https.any.html?gpu - WebDriverRun.run_func didn't set a result
/webnn/conformance_tests/tile.https.any.html?npu
  TIMEOUT /webnn/conformance_tests/tile.https.any.html?npu - Executor hit external timeout (this may indicate a hang)
  File "/usr/lib/python3.10/threading.py", line 973, in _bootstrap
    self._bootstrap_inner()
  File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.10/threading.py", line 953, in run
    self._target(*self._args, **self._kwargs)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1146, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 1243, in do_testharness
    raw_results = protocol.testdriver.run(url, self.script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 687, in run
    test_driver_message = self.get_next_message(url, script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 731, in get_next_message
    return self._get_next_message_classic(url, script_resume)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorchrome.py", line 126, in _get_next_message_classic
    time.sleep(0.05)
/webnn/idlharness.https.any.html
  FAIL MLContext interface: attribute accelerated - assert_true: The prototype object must have a property "accelerated" expected true got false
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2223:13)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at IdlInterface.test_member_attribute (https://web-platform.test:8443/resources/idlharness.js:2170:12)
    at IdlInterface.test_members (https://web-platform.test:8443/resources/idlharness.js:2712:22)
    at IdlInterface.test (https://web-platform.test:8443/resources/idlharness.js:1448:10)
  FAIL MLContext interface: context must inherit property "accelerated" with the proper type - assert_inherits: property "accelerated" not found in prototype chain
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2923:25)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at test (https://web-platform.test:8443/resources/testharness.js:633:30)
    at self.subsetTestByKey (https://web-platform.test:8443/resources/idlharness.js:44:14)
/webnn/idlharness.https.any.serviceworker.html
  FAIL MLContext interface: attribute accelerated - assert_true: The prototype object must have a property "accelerated" expected true got false
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2223:13)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at IdlInterface.test_member_attribute (https://web-platform.test:8443/resources/idlharness.js:2170:12)
    at IdlInterface.test_members (https://web-platform.test:8443/resources/idlharness.js:2712:22)
    at IdlInterface.test (https://web-platform.test:8443/resources/idlharness.js:1448:10)
  FAIL MLContext interface: context must inherit property "accelerated" with the proper type - assert_inherits: property "accelerated" not found in prototype chain
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2923:25)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at test (https://web-platform.test:8443/resources/testharness.js:633:30)
    at https://web-platform.test:8443/resources/idlharness.js:44:14
/webnn/idlharness.https.any.sharedworker.html
  FAIL MLContext interface: attribute accelerated - assert_true: The prototype object must have a property "accelerated" expected true got false
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2223:13)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at IdlInterface.test_member_attribute (https://web-platform.test:8443/resources/idlharness.js:2170:12)
    at IdlInterface.test_members (https://web-platform.test:8443/resources/idlharness.js:2712:22)
    at IdlInterface.test (https://web-platform.test:8443/resources/idlharness.js:1448:10)
  FAIL MLContext interface: context must inherit property "accelerated" with the proper type - assert_inherits: property "accelerated" not found in prototype chain
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2923:25)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at test (https://web-platform.test:8443/resources/testharness.js:633:30)
    at self.subsetTestByKey (https://web-platform.test:8443/resources/idlharness.js:44:14)
/webnn/idlharness.https.any.worker.html
  FAIL MLContext interface: attribute accelerated - assert_true: The prototype object must have a property "accelerated" expected true got false
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2223:13)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at IdlInterface.test_member_attribute (https://web-platform.test:8443/resources/idlharness.js:2170:12)
    at IdlInterface.test_members (https://web-platform.test:8443/resources/idlharness.js:2712:22)
    at IdlInterface.test (https://web-platform.test:8443/resources/idlharness.js:1448:10)
  FAIL MLContext interface: context must inherit property "accelerated" with the proper type - assert_inherits: property "accelerated" not found in prototype chain
    at IdlInterface.<anonymous> (https://web-platform.test:8443/resources/idlharness.js:2923:25)
    at Test.step (https://web-platform.test:8443/resources/testharness.js:2869:25)
    at test (https://web-platform.test:8443/resources/testharness.js:633:30)
    at self.subsetTestByKey (https://web-platform.test:8443/resources/idlharness.js:44:14)
 9:15.21 INFO Got 27 unexpected results, with 0 unexpected passes
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8002
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8003
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8443
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8001
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8000
 9:15.21 wptserve INFO Stopped http server on 127.0.0.1:8444
 9:15.23 wptserve INFO Stopped http server on 127.0.0.1:8446
 9:15.23 wptserve INFO Stopped http server on 127.0.0.1:8445
 9:15.23 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 9:15.23 wptserve INFO Stopped http server on 127.0.0.1:9000
 9:15.67 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 9:15.67 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 9:15.71 INFO Removed font: Ahem.ttf
 9:15.74 INFO Closing logging queue
 9:15.74 INFO queue closed
 9:15.74 INFO Tolerating 27 unexpected results
[taskcluster 2026-01-12 06:13:42.006Z] === Task Finished ===
[taskcluster 2026-01-12 06:13:43.019Z] Successful task run with exit code: 0 completed in 691.074 seconds
View more details on Community-TC Integration