[browser][MT] PlatformNotSupportedException Blocking wait is not supported on the JS interop threads

[pavelsavara]

Error Blob

{
  "ErrorMessage": "",
  "BuildRetry": false,
  "ErrorPattern": "System\.PlatformNotSupportedException ?: Blocking wait is not supported on the JS interop threads",
  "ExcludeConsoleLog": false
}

Reproduction Steps

Log
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=574940

[22:24:46] info: [FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandlerTest.ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream
[22:24:46] info: System.PlatformNotSupportedException : Blocking wait is not supported on the JS interop threads.
[22:24:46] info:    at System.Threading.Thread.AssureBlockingPossible()
[22:24:46] info:    at System.Threading.SemaphoreSlim.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
[22:24:46] info:    at System.Threading.SemaphoreSlim.Wait()
[22:24:46] info:    at System.IO.Stream.BeginReadInternal(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback callback, Object state, Boolean serializeAsynchronously, Boolean apm)
[22:24:46] info:    at System.IO.Stream.BeginRead(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback callback, Object state)
[22:24:46] info:    at System.Threading.Tasks.TaskFactory`1[[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].FromAsyncImpl[Byte[],Int32,Int32](Func`6 beginMethod, Func`2 endFunction, Action`1 endAction, Byte[] arg1, Int32 arg2, Int32 arg3, Object state, TaskCreationOptions creationOptions)
[22:24:46] info:    at System.Threading.Tasks.TaskFactory.FromAsync[Byte[],Int32,Int32,Int32](Func`6 beginMethod, Func`2 endMethod, Byte[] arg1, Int32 arg2, Int32 arg3, Object state)
[22:24:46] info:    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.<ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream>b__29_0(Uri uri)
[22:24:46] info:    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
[22:24:46] info: --- End of stack trace from previous location ---
[22:24:46] info:    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks)
[22:24:46] info:    at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass6_0.<<CreateClientAndServerAsync>b__0>d.MoveNext()
[22:24:46] info: --- End of stack trace from previous location ---
[22:24:46] info:    at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options)
[22:24:46] info:    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream()
[22:24:46] info: --- End of stack trace from previous location ---

Known issue validation

Build: 🔎
Result validation: ⚠️ Provided build not found. Provide a valid build in the "Build: 🔎" line.
Validation performed at: 4/15/2024 7:27:53 PM UTC

Report

Build	Definition	Test	Pull Request
643881	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#101056
644056	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#101038
643951	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#100765
643885	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#100898
643867	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#100266
643892	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#100949
643833	dotnet/runtime	WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests.WorkItemExecution	#100947

Summary

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

Known Issue Error Message

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

{
  "ErrorMessage": "",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

[ghost]

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Error Blob

{
  "ErrorMessage": "System.PlatformNotSupportedException : Blocking wait is not supported on the JS interop threads",
  "BuildRetry": false,
  "ErrorPattern": "",
  "ExcludeConsoleLog": false
}

Reproduction Steps

Log
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=574940

[22:24:46] info: [FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandlerTest.ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream
[22:24:46] info: System.PlatformNotSupportedException : Blocking wait is not supported on the JS interop threads.
[22:24:46] info:    at System.Threading.Thread.AssureBlockingPossible()
[22:24:46] info:    at System.Threading.SemaphoreSlim.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
[22:24:46] info:    at System.Threading.SemaphoreSlim.Wait()
[22:24:46] info:    at System.IO.Stream.BeginReadInternal(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback callback, Object state, Boolean serializeAsynchronously, Boolean apm)
[22:24:46] info:    at System.IO.Stream.BeginRead(Byte[] buffer, Int32 offset, Int32 count, AsyncCallback callback, Object state)
[22:24:46] info:    at System.Threading.Tasks.TaskFactory`1[[System.Int32, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].FromAsyncImpl[Byte[],Int32,Int32](Func`6 beginMethod, Func`2 endFunction, Action`1 endAction, Byte[] arg1, Int32 arg2, Int32 arg3, Object state, TaskCreationOptions creationOptions)
[22:24:46] info:    at System.Threading.Tasks.TaskFactory.FromAsync[Byte[],Int32,Int32,Int32](Func`6 beginMethod, Func`2 endMethod, Byte[] arg1, Int32 arg2, Int32 arg3, Object state)
[22:24:46] info:    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.<ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream>b__29_0(Uri uri)
[22:24:46] info:    at System.Threading.Tasks.TaskTimeoutExtensions.GetRealException(Task task)
[22:24:46] info: --- End of stack trace from previous location ---
[22:24:46] info:    at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks)
[22:24:46] info:    at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass6_0.<<CreateClientAndServerAsync>b__0>d.MoveNext()
[22:24:46] info: --- End of stack trace from previous location ---
[22:24:46] info:    at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options)
[22:24:46] info:    at System.Net.Http.Functional.Tests.HttpClientHandlerTest.ReadAsStreamAsync_EmptyResponseBody_HandlerProducesWellBehavedResponseStream()
[22:24:46] info: --- End of stack trace from previous location ---

Author:	pavelsavara
Assignees:	-
Labels:	arch-wasm, blocking-clean-ci, area-VM-threading-mono, Known Build Error, os-browser
Milestone:	9.0.0

[pavelsavara]

@radekdoulik I opened this to catch all surprising cases where blocking happens.

In one particular case it's

runtime/src/libraries/System.Private.CoreLib/src/System/IO/Stream.cs

Line 228 in 8dcb639

semaphore.Wait();

And I wonder why serializeAsynchronously is false ?

And here is another example Log

[AlitzelMendez]

Known issues update: This issue has been affected by the issue described in: dotnet/dnceng#2065. Since all the issues opened after 02/20 can cause the build analysis to fail, I will exclude this issue from the build analysis and add a tracking label to restore it as a known issue once this problem is resolved.

[jozkee]

It happened again in https://helixre107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-pull-100898-merge-475198b81218424ca4/WasmTestOnBrowser-System.Runtime.InteropServices.JavaScript.Tests/1/console.70c98dfd.log?helixlogtype=result

[15:30:18] info: [STRT] System.Runtime.InteropServices.JavaScript.Tests.WebWorkerHttpTest.HttpClient_ContentInDifferentThread(executor1: JSWebWorker, executor2: JSWebWorker)
[15:30:18] warn: [0x07e90040-jsww 15:30:18.437] [MONO] Process terminated.
[15:30:18] warn: [0x07e90040-jsww 15:30:18.440] [MONO] CompleteTask: Unexpected synchronous failure (ManagedThreadId 157): System.PlatformNotSupportedException: Blocking wait is not supported on the JS interop threads.
                    at System.Threading.Thread.AssureBlockingPossible()
                    at System.Threading.ManualResetEventSlim.Wait(Int32 , CancellationToken )
                    at System.Runtime.InteropServices.JavaScript.JavaScriptExports.CompleteTask(JSMarshalerArgument* arguments_buffer)

ErrorMessage is different by a whitespace:

- System.PlatformNotSupportedException : Blocking wait is not supported on the JS interop threads
+ System.PlatformNotSupportedException: Blocking wait is not supported on the JS interop threads

[pavelsavara]

I'm hoping that #101078 fixed it, please re-open if not