Exception in EF Core 7 beta 1 after changing the minimum log level

[Georgi Panayotov]

Hello,

I'm trying to migrate one of our applications to the beta1 of EFCore provider and have problem if change the minimum logging level.

To try to reproduce the error in clean project I took the example from https://github.com/cincuranet/FirebirdSql.Data.FirebirdClient/blob/master/docs/entity-framework-core.md and

and just changed the minimum log level in line:

static readonly ILoggerFactory MyLoggerFactory = LoggerFactory.Create(builder => { builder.AddConsole(); builder.SetMinimumLevel(LogLevel.Trace); });


I receive the error 'Object reference not set to an instance of an object.' and it occured in

public override string Database
{
get { return _options.Database; }
}


The get is invoked from ConnectionDisposed in RelationalConnectionDiagnosticsLogger when is logging the disposal of the context:

definition.Log(this, connection.DbConnection.Database, connection.DbConnection.DataSource, (int)duration.TotalMilliseconds);

But this is after the Dispose method of FBConnection is called and the _options is set to null
                      

If I set the level to Warning - it does not throw error. Only if is set to Trace or Debug

the stack trace is:

FirebirdSql.Data.FirebirdClient.dll!FirebirdSql.Data.FirebirdClient.FbConnection.Database.get() Line 205 C#
  Microsoft.EntityFrameworkCore.Relational.dll!Microsoft.EntityFrameworkCore.Diagnostics.Internal.RelationalConnectionDiagnosticsLogger.ConnectionDisposed(Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.DateTimeOffset startTime, System.TimeSpan duration) Line 668 C#
  Microsoft.EntityFrameworkCore.Relational.dll!Microsoft.EntityFrameworkCore.Storage.RelationalConnection.DisposeDbConnection() Line 1113 C#
  Microsoft.EntityFrameworkCore.Relational.dll!Microsoft.EntityFrameworkCore.Storage.RelationalConnection.ResetState(bool disposeDbConnection) Line 1047 C#
  Microsoft.EntityFrameworkCore.Relational.dll!Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Dispose() Line 1014 C#
  Microsoft.Extensions.DependencyInjection.dll!Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.Dispose() Line 104 C#
  Microsoft.EntityFrameworkCore.dll!Microsoft.EntityFrameworkCore.DbContext.Dispose() Line 1058 C#
  ConsoleApp2.dll!Program.Main(string[] args) Line 12 C#

[Jiří Činčura]

https://github.com/FirebirdSQL/NETProvider/issues/1135

--
Mgr. Jiří Činčura
https://www.tabsoverspaces.com/