Description
Environment
NetMQ Version: 4.0.0.1
Operating System: Linux 5.4.129-5.4.0-devel+git.cb88cc157bfb
.NET Version: Mono JIT compiler version 6.10.0.104, net461
Expected behaviour
Open a SubscriberSocket and receive message
Actual behaviour
Unhandled Exception:
System.InvalidOperationException: Operation already in progress
at System.Net.Sockets.SocketAsyncEventArgs.SetLastOperation (System.Net.Sockets.SocketAsyncOperation op) [0x00021] in :0
at System.Net.Sockets.Socket.InitSocketAsyncEventArgs (System.Net.Sockets.SocketAsyncEventArgs e, System.AsyncCallback callback, System.Object state, System.Net.Sockets.SocketOperation operation) [0x00039] in :0
at System.Net.Sockets.Socket.SendAsync (System.Net.Sockets.SocketAsyncEventArgs e) [0x00087] in :0
at AsyncIO.DotNet.NativeSocket.Send (System.Byte[] buffer, System.Int32 offset, System.Int32 count, System.Net.Sockets.SocketFlags flags) [0x00047] in <76dbd955e71949f7b13045772e552e7a>:0
at NetMQ.Core.Transports.StreamEngine.BeginWrite (NetMQ.Core.Transports.ByteArraySegment data, System.Int32 size) [0x00012] in :0
at NetMQ.Core.Transports.StreamEngine.HandleHandshake (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x000b3] in :0
at NetMQ.Core.Transports.StreamEngine.Handle (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x00093] in :0
at NetMQ.Core.Transports.StreamEngine.FeedAction (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x00000] in :0
at NetMQ.Core.Transports.StreamEngine.Plug (NetMQ.Core.IOThread ioThread, NetMQ.Core.SessionBase session) [0x0005b] in :0
at NetMQ.Core.SessionBase.ProcessAttach (NetMQ.Core.Transports.IEngine engine) [0x000ca] in :0
at NetMQ.Core.ZObject.ProcessCommand (NetMQ.Core.Command cmd) [0x000a8] in :0
at NetMQ.Core.IOThread.Ready () [0x00009] in :0
at NetMQ.Core.IOThreadMailbox.RaiseEvent () [0x00008] in :0
at NetMQ.Core.Utils.Proactor.Loop () [0x00051] in :0
at System.Threading.ThreadHelper.ThreadStart_Context (System.Object state) [0x00014] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state) [0x0002b] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ThreadHelper.ThreadStart () [0x00008] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.InvalidOperationException: Operation already in progress
at System.Net.Sockets.SocketAsyncEventArgs.SetLastOperation (System.Net.Sockets.SocketAsyncOperation op) [0x00021] in :0
at System.Net.Sockets.Socket.InitSocketAsyncEventArgs (System.Net.Sockets.SocketAsyncEventArgs e, System.AsyncCallback callback, System.Object state, System.Net.Sockets.SocketOperation operation) [0x00039] in :0
at System.Net.Sockets.Socket.SendAsync (System.Net.Sockets.SocketAsyncEventArgs e) [0x00087] in :0
at AsyncIO.DotNet.NativeSocket.Send (System.Byte[] buffer, System.Int32 offset, System.Int32 count, System.Net.Sockets.SocketFlags flags) [0x00047] in <76dbd955e71949f7b13045772e552e7a>:0
at NetMQ.Core.Transports.StreamEngine.BeginWrite (NetMQ.Core.Transports.ByteArraySegment data, System.Int32 size) [0x00012] in :0
at NetMQ.Core.Transports.StreamEngine.HandleHandshake (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x000b3] in :0
at NetMQ.Core.Transports.StreamEngine.Handle (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x00093] in :0
at NetMQ.Core.Transports.StreamEngine.FeedAction (NetMQ.Core.Transports.StreamEngine+Action action, System.Net.Sockets.SocketError socketError, System.Int32 bytesTransferred) [0x00000] in :0
at NetMQ.Core.Transports.StreamEngine.Plug (NetMQ.Core.IOThread ioThread, NetMQ.Core.SessionBase session) [0x0005b] in :0
at NetMQ.Core.SessionBase.ProcessAttach (NetMQ.Core.Transports.IEngine engine) [0x000ca] in :0
at NetMQ.Core.ZObject.ProcessCommand (NetMQ.Core.Command cmd) [0x000a8] in :0
at NetMQ.Core.IOThread.Ready () [0x00009] in :0
at NetMQ.Core.IOThreadMailbox.RaiseEvent () [0x00008] in :0
at NetMQ.Core.Utils.Proactor.Loop () [0x00051] in :0
at System.Threading.ThreadHelper.ThreadStart_Context (System.Object state) [0x00014] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state) [0x0002b] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
at System.Threading.ThreadHelper.ThreadStart () [0x00008] in <7fd198c87a6b4d9fb18f44a78a5802dc>:0
Steps to reproduce the behaviour
Still don't know how to reproduce, exception occurs once in blue moon.