Intermitted .NET 6 web application crash using Kestrel

Question

I have a .NET 6 web application that crashes intermittently when using Kestrel:

System.Net.Sockets.SocketException (995): The I/O operation has been aborted because of either a thread exit or an application request.
   at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketAwaitableEventArgs.<GetResult>g__ThrowSocketException|5_0(SocketError e)
   at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketAwaitableEventArgs.GetResult(Int16 token)
   at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketConnection.DoReceive()
   at System.IO.Pipelines.Pipe.GetReadResult(ReadResult& result)
   at System.IO.Pipelines.Pipe.GetReadAsyncResult()
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequestsAsync[TContext](IHttpApplication`1 application)
         at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketAwaitableEventArgs.<GetResult>g__ThrowSocketException|5_0(SocketError e)
         at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketAwaitableEventArgs.GetResult(Int16 token)
         at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.Internal.SocketConnection.DoReceive()
         at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
         at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequestsAsync[TContext](IHttpApplication`1 application)
Microsoft.AspNetCore.Server.Kestrel: Warning: Connection processing ended abnormally.

I can't reliably cause it to happen, but it always happens eventually, usually after 5-20 mins of running. The web app stalls completely, and this is the last message we can get out of any logging.

This looks like some kind of socket connection error, but it happens on local machines, it happens with VSCode or VS2022 debuggers attached.

This entire stack points to Microsoft code, no part of it points to the code in our app.

Any idea where to start fixing this? What might be causing it?

Intermitted .NET 6 web application crash using Kestrel

0 Answers0