w3wp.exe进程配置文件确认及SerializationException未解决求助

遇到SerializationException异常，提示信息："内部数组无法扩展到超过Int32.MaxValue个元素"（原英文：The internal array cannot expand to greater than Int32.MaxValue elements.）

已知解决方案是在配置文件中添加以下配置项：

<AppContextSwitchOverrides value="Switch.System.Runtime.Serialization.UseNewMaxArraySize=true" />

已在web.config中添加该配置并重启IIS（.NET版本为4.8），但问题仍未解决。

通过Procmon工具查看w3wp.exe进程读取的配置文件路径，发现部分进程对应C:\inetpub\temp\apppools\Archer\Archer.config，另一部分对应C:\inetpub\temp\apppools\DefaultAppPool\DefaultAppPool.config。

现需确认出现该异常的w3wp.exe进程实际使用的配置文件，相关堆栈跟踪信息如下：

<InnerException>
    <ExceptionType>System.InvalidOperationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
    <Message>Unable to find html field value for typename 'Field'</Message>
    <Source>CompanyTech.Notifications</Source>
    <StackTrace>  at CompanyTech.Notifications.xslt.NotificationXslExtensions.LookupValue(XPathNodeIterator lookupDefinition, XPathNodeIterator objectIdXPath, String pluginPrefix)</StackTrace>
    <InnerException>
        <ExceptionType>System.Runtime.Serialization.SerializationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
        <Message>The internal array cannot expand to greater than Int32.MaxValue elements.</Message>
        <Source>mscorlib</Source>
        <StackTrace>  at System.Runtime.Serialization.ObjectIDGenerator.Rehash()

  at System.Runtime.Serialization.ObjectIDGenerator.GetId(Object obj, Boolean&amp; firstTime)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.InternalGetId(Object obj, Boolean assignUniqueIdToValueType, Type type, Boolean&amp; isNew)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Schedule(Object obj, Boolean assignUniqueIdToValueType, Type type, WriteObjectInfo objectInfo)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteMembers(NameInfo memberNameInfo, NameInfo memberTypeNameInfo, Object memberData, WriteObjectInfo objectInfo, NameInfo typeNameInfo, WriteObjectInfo memberObjectInfo)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteMemberSetup(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo, String memberName, Type memberType, Object memberData, WriteObjectInfo memberObjectInfo)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo, String[] memberNames, Type[] memberTypes, Object[] memberData, WriteObjectInfo[] memberObjectInfos)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)

  at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)

  at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)

  at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)

  at CompanyTech.Notifications.ContentRender.LevelRecordDataContainerDeepCopy(LevelRecordDataContainer levelRecordDataContainer)

  at CompanyTech.Notifications.ContentRender..ctor(IRenderEngine engine, Content content, LevelRecordDataContainer levelRecordDataContainer)

  at CompanyTech.Notifications.Rendering.RenderEngine.GetFieldHtml(Int32 contentId, Int32 fieldId)

  at CompanyTech.Notifications.Providers.Value.ArcherContentNotificationValueProvider.GetHtmlReplacement(String objectId, ValuePlaceholder valuePlaceholder)

  at CompanyTech.Notifications.xslt.NotificationXslExtensions.LookupValue(XPathNodeIterator lookupDefinition, XPathNodeIterator objectIdXPath, String pluginPrefix)</StackTrace>
    </InnerException>
</InnerException>

内容的提问来源于stack exchange，提问作者Ranjith