Access violation in FesStatement.Finalize
-----------------------------------------
Key: DNET-597
URL: http://tracker.firebirdsql.org/browse/DNET-597
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider, Entity Framework support
Affects Versions: 4.6.1.0
Environment: Firebird 2.5.2. x86 FB ADO .NET 4.6.1.0
Reporter: Hennadii
Assignee: Jiri Cincura
In our CI I've experienced access violation while running
firebird.sqlclient.tests with following managed stack:
at FB_965910463_Class.isc_dsql_free_statement(IntPtr[], Int32 ByRef, Int16)
at FB_965910463_Class.IFbClient.isc_dsql_free_statement(IntPtr[], Int32
ByRef, Int16)
at FirebirdSql.Data.Client.Native.FesStatement.Free(Int32)
at FirebirdSql.Data.Common.StatementBase.Release()
at FirebirdSql.Data.Client.Native.FesStatement.Release()
at FirebirdSql.Data.Client.Native.FesStatement.Dispose(Boolean)
at FirebirdSql.Data.Common.StatementBase.Finalize()
I don't have a native stack for this, but I look forward get it.
My suggestion bases on this:
"isc_dsql_allocate_statement2()
function is similar to the isc_dsql_alloc_statement() function except that
statement handles allocated using isc_dsql_allocate_statement2() are
automatically reset to NULL when the database under which they are allocated
is detached" (taken from ib6.0 beta docs)
I think a database was already deallocated before finalization of statement got
to the queue. I think it needs somehow propagate deallocation of the database
in managed statement objects.
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