Xml.Tests OOM on Wasm

[ericstj]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1025800
Build error leg or test failing: WasmTestOnChrome-ST-System.Private.Xml.Tests.WorkItemExecution
Pull request: #115013

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": ["Starting:    System.Private.Xml.Tests.dll" , "fail: OutOfMemoryException", "XHarness exit code: 71 (GENERAL_FAILURE)"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Example failure https://helixr1107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-pull-115013-merge-a3b65883de9d45438c/WasmTestOnChrome-ST-System.Private.Xml.Tests/1/console.95c6b879.log?helixlogtype=result:

ChromeDriver was started successfully on port 43713.
[21:22:45] info: Running in: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/135.0.0.0 Safari/537.36
[21:22:45] info: Running at: http://127.0.0.1:45473/index.html?arg=--run&arg=WasmTestRunner.dll&arg=System.Private.Xml.Tests.dll&arg=-notrait&arg=category%3dIgnoreForCI&arg=-notrait&arg=category%3dOuterLoop&arg=-notrait&arg=category%3dfailing&arg=-verbosity&arg=Info
[21:22:45] fail: [out of order message from the browser]: http://127.0.0.1:45473/runArgs.json - Failed to load resource: the server responded with a status of 404 (Not Found)
[21:22:45] fail: [out of order message from the browser]: http://127.0.0.1:45473/favicon.ico - Failed to load resource: the server responded with a status of 404 (Not Found)
[21:22:45] info: could not load /runArgs.json: 404. Ignoring
[21:22:45] info: Incoming arguments: --run WasmTestRunner.dll System.Private.Xml.Tests.dll -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing -verbosity Info
[21:22:45] info: Application arguments: --run WasmTestRunner.dll System.Private.Xml.Tests.dll -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing -verbosity Info
[21:22:50] info: Initializing dotnet version 10.0.0-ci commit hash edefcb793e49ed6673aa070f6392184aa3cdd186
[21:22:50] info: Using threadless Xunit runner
[21:22:50] info: Discovering: System.Private.Xml.Tests.dll (method display = ClassAndMethod, method display options = None)
[21:22:53] info: Discovered:  System.Private.Xml.Tests.dll (found 4774 of 4834 test cases)
[21:22:53] info: Starting:    System.Private.Xml.Tests.dll
[21:24:57] warn: [MONO] Process terminated.
[21:24:57] warn: [MONO] ThreadPool.BackgroundJobHandler failed
[21:24:57] fail: 
[21:24:57] fail: Unhandled Exception:
[21:24:57] fail: OutOfMemoryException
[21:24:57] info: WASM EXIT 1
[21:24:57] fail: [out of order message from the browser]: http://bla/ - Failed to load resource: net::ERR_NAME_NOT_RESOLVED
[21:24:57] info: Waiting to flush log messages with a timeout of 120 secs ..
[21:24:57] fail: [out of order message from the browser]: https://foo/foo - Failed to load resource: net::ERR_NAME_NOT_RESOLVED
[21:24:57] fail: Application has finished with exit code TESTS_FAILED but 0 was expected
[21:24:57] info: Closing 1 browser tabs before setting the main tab to config page and quitting.
XHarness exit code: 71 (GENERAL_FAILURE)
/root/helix/work/workitem/e /root/helix/work/workitem/e
----- end Thu Apr 24 09:24:59 PM UTC 2025 ----- exit code 71 ----------------------------------------------------------

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1025800
Error message validated: [Starting: System.Private.Xml.Tests.dll fail: OutOfMemoryException XHarness exit code: 71 (GENERAL_FAILURE)]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/29/2025 3:44:08 PM UTC

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

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[pavelsavara]

@oroztocil could you please have look ?