Test failure: System.Net.Http.Functional.Tests.HttpClientTest.GetAsync_ContentCanBeCanceled(getMode: 0, cancelMode: 2)

[v-haren]

failed in job:runtime-libraries-coreclr outerloop 20201008.1

net6.0-Windows_NT-Release-x64-CoreCLR_release-Windows.10.Amd64.ServerRS5.Open

Error message

System.IO.IOException : Unexpected EOF trying to read request header

Stack trace
   at System.Net.Test.Common.LoopbackServer.Connection.ReadRequestHeaderBytesAsync() in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 670
   at System.Net.Test.Common.LoopbackServer.Connection.ReadRequestDataAsync(Boolean readBody) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 716
   at System.Net.Http.Functional.Tests.HttpClientTest.<>c__DisplayClass26_0.<<GetAsync_ContentCanBeCanceled>b__3>d.MoveNext() in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 481
--- End of stack trace from previous location ---
   at System.Net.Test.Common.LoopbackServer.AcceptConnectionAsync(Func`2 funcAsync) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 126
   at System.Net.Http.Functional.Tests.HttpClientTest.<>c__DisplayClass26_0.<<GetAsync_ContentCanBeCanceled>b__1>d.MoveNext() in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 479
--- End of stack trace from previous location ---
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 96
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 124
   at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass5_0.<<CreateClientAndServerAsync>b__0>d.MoveNext() in /_/src/libraries/Common/tests/System/Net/Http/GenericLoopbackServer.cs:line 36
--- End of stack trace from previous location ---
   at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 74
   at System.Threading.Tasks.TaskTimeoutExtensions.TimeoutAfter(Task task, TimeSpan timeout) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 37
   at System.Net.Http.Functional.Tests.HttpClientTest.GetAsync_ContentCanBeCanceled(Int32 getMode, Int32 cancelMode) in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 444
--- End of stack trace from previous location ---

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[v-haren]

failed again in job: runtime-libraries-coreclr outerloop 20201025.2

failed test: System.Net.Http.Functional.Tests.HttpClientTest.GetAsync_ContentCanBeCanceled(getMode: 0, cancelMode: 2)

net6.0-Windows_NT-Release-x86-CoreCLR_release-Windows.10.Amd64.Server19H1.Open

Error message

System.IO.IOException : Unexpected EOF trying to read request header


Stack trace
   at System.Net.Test.Common.LoopbackServer.Connection.ReadRequestHeaderBytesAsync() in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 670
   at System.Net.Test.Common.LoopbackServer.Connection.ReadRequestDataAsync(Boolean readBody) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 716
   at System.Net.Http.Functional.Tests.HttpClientTest.<>c__DisplayClass26_0.<<GetAsync_ContentCanBeCanceled>b__3>d.MoveNext() in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 484
--- End of stack trace from previous location ---
   at System.Net.Test.Common.LoopbackServer.AcceptConnectionAsync(Func`2 funcAsync) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 126
   at System.Net.Http.Functional.Tests.HttpClientTest.<>c__DisplayClass26_0.<<GetAsync_ContentCanBeCanceled>b__1>d.MoveNext() in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 482
--- End of stack trace from previous location ---
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 96
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 124
   at System.Net.Test.Common.LoopbackServerFactory.<>c__DisplayClass5_0.<<CreateClientAndServerAsync>b__0>d.MoveNext() in /_/src/libraries/Common/tests/System/Net/Http/GenericLoopbackServer.cs:line 36
--- End of stack trace from previous location ---
   at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options) in /_/src/libraries/Common/tests/System/Net/Http/LoopbackServer.cs:line 74
   at System.Threading.Tasks.TaskTimeoutExtensions.TimeoutAfter(Task task, TimeSpan timeout) in /_/src/libraries/Common/tests/System/Threading/Tasks/TaskTimeoutExtensions.cs:line 37
   at System.Net.Http.Functional.Tests.HttpClientTest.GetAsync_ContentCanBeCanceled(Int32 getMode, Int32 cancelMode) in /_/src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs:line 447
--- End of stack trace from previous location ---

[antonfirsov]

Hit in #43409

[karelz]

Duplicate of #44003