Random bug in finalizing DbCommands
-----------------------------------
Key: DNET-582
URL: http://tracker.firebirdsql.org/browse/DNET-582
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider
Affects Versions: 4.5.2.0
Environment: Windows Server 2008 R2. firebird 2.5.3 x64 embedded
Reporter: Hennadii
Assignee: Jiri Cincura
Several times I've experienced randomly reproduced bug. It has some different
symptoms: OOM, unhandled crash and so on.
But all this times I had the same stack:
000000001b56edb0 00000000773a186a [FaultingExceptionFrame: 000000001b56edb0]
000000001b56f300 000007fe9a9920b0
FirebirdSql.Data.FirebirdClient.FbCommand.Release()
[*\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs @ 821]
000000001b56f340 000007fe9a9a47f5
FirebirdSql.Data.FirebirdClient.FbCommand.Dispose(Boolean)
[*\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs @ 384]
000000001b56f3a0 000007fef71cc8da System.ComponentModel.Component.Finalize()
000000001b56f798 000007fef9479d56 [DebuggerU2MCatchHandlerFrame:
000000001b56f798]
It is locally built library so I'll provide lines referred above:
FbCommand.cs @ 821
if (this.connection != null && this.connection.State ==
ConnectionState.Open)
{
this.connection.InnerConnection.RemovePreparedCommand(this);
}
FbCommand.cs @ 384
try
{
// Release any unmanaged resources
this.Release();
I've added crutch to the FbCommand.Release method as in other places, just
handle exception without any code. But I think it is not the best way to fix it.
try
{
// old code
}
catch // added
{
}
finally
{
base.Dispose(disposing);
}
Don't you think that catching swallowing exceptions in dispose methods is a bad
way to handle errors?
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