.NET 8 - Fatal error - Attempted to read or write protected memory #2005
Description
Hi,
When I upgraded my projects to .NET 8, some of my queries were failing with a fatal error:
Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at DynamicClass.Deserialize1438ca86-58d3-4c26-a016-8aeb80aaf8ea(System.Data.Common.DbDataReader)
at Dapper.SqlMapper+<>c__DisplayClass167_0`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<GenerateMapper>b__0(System.Data.Common.DbDataReader)
at Dapper.SqlMapper+<MultiMapImpl>d__164`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
at System.Collections.Generic.List`1[[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]..ctor(System.Collections.Generic.IEnumerable`1<System.ValueTuple`2<One,Two>>)
at System.Linq.Enumerable.ToList[[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](System.Collections.Generic.IEnumerable`1<System.ValueTuple`2<One,Two>>)
at Dapper.SqlMapper+<MultiMapAsync>d__52`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Dapper.SqlMapper+<MultiMapAsync>d__52`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Dapper, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null]].ExecutionContextCallback(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Dapper.SqlMapper+<MultiMapAsync>d__52`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Dapper, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext(System.Threading.Thread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Dapper.SqlMapper+<MultiMapAsync>d__52`8[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.ValueTuple`2[[One, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Two, ConsoleApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Dapper, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()
at System.Runtime.CompilerServices.TaskAwaiter+<>c.<OutputWaitEtwEvents>b__12_0(System.Action, System.Threading.Tasks.Task)
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean)
at System.Threading.Tasks.Task.RunContinuations(System.Object)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread)
at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline(System.Threading.Tasks.Task, Boolean)
at System.Threading.Tasks.TaskScheduler.TryRunInline(System.Threading.Tasks.Task, Boolean)
at System.Threading.Tasks.TaskContinuation.InlineIfPossibleOrElseQueue(System.Threading.Tasks.Task, Boolean)
at System.Threading.Tasks.ContinueWithTaskContinuation.Run(System.Threading.Tasks.Task, Boolean)
at System.Threading.Tasks.Task.RunContinuations(System.Object)
at System.Threading.Tasks.Task`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetResult(System.__Canon)
at System.Threading.Tasks.UnwrapPromise`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].TrySetFromTask(System.Threading.Tasks.Task, Boolean)
at System.Threading.Tasks.UnwrapPromise`1[[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ProcessInnerTask(System.Threading.Tasks.Task)
at System.Threading.Tasks.Task.RunContinuations(System.Object)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()
Using Dapper 2.1.24, the following program works with .NET 7, but fails with .NET 8:
using System;
using System.Threading.Tasks;
using Microsoft.Data.SqlClient;
using Dapper;
public class Program
{
internal record struct One( int OID );
internal record struct Two( int OID, string Name );
public static async Task Main()
{
using var cnn = new SqlConnection(FiddleHelper.GetConnectionStringSqlServer());
var sql = @"SELECT 1 AS OID, 2 AS OID, 'Name' AS Name";
var splitOn = "OID";
var map = (One x1, Two x2) => (x1, x2);
var results = await cnn.QueryAsync<One, Two, (One, Two)>(sql, map, splitOn: splitOn).ConfigureAwait(false);
foreach(var result in results)
{
Console.WriteLine(result);
}
}
}- Fiddle with .NET 8: https://dotnetfiddle.net/lRCBot
- Fiddle with .NET 7: https://dotnetfiddle.net/Xs26kT
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