http://msmvps.com/blogs/luisabreu/archive/2009/07/06/multithreading-the-volatile-keyword-part-ii.aspxIn the last post , I’ve showed you some code I’ve written in&#160; the past and asked if there was anything wrong with it. Here’s the code again: class Lazy { private SomeObject _object; private Object _locker = new Object (); public SomeObject SomeObjectenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/luisabreu/archive/2009/07/06/multithreading-the-volatile-keyword-part-ii.aspx#1698488Mon, 06 Jul 2009 21:20:54 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1698488ASPInsiders<p>In the previous post we’ve seen how we can use the C# volatile keyword to guarantee that those nasty</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1698488" width="1" height="1">http://msmvps.com/blogs/luisabreu/archive/2009/07/06/multithreading-the-volatile-keyword-part-ii.aspx#1698478Mon, 06 Jul 2009 20:25:35 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1698478LA.NET [EN]<p>In the previous post we’ve seen how we can use the C# volatile keyword to guarantee that those nasty</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1698478" width="1" height="1">http://msmvps.com/blogs/luisabreu/archive/2009/07/06/multithreading-the-volatile-keyword-part-ii.aspx#1698455Mon, 06 Jul 2009 18:23:29 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1698455Luis Abreu<p>Yes, they do, but don&#39;t forget that load-load are allowed here (ex.: fields of the object loaded before the instance) and some processors do use it. Applying the volatile word to that instance doesn&#39;t let that happen. You don&#39;t need to apply it to the instance type fields though. Joe Duffy has a nice post on it here <a rel="nofollow" target="_new" href="http://www.bluebytesoftware.com/blog/PermaLink,guid,543d89ad-8d57-4a51-b7c9-a821e3992bf6.aspx">www.bluebytesoftware.com/.../PermaLink,guid,543d89ad-8d57-4a51-b7c9-a821e3992bf6.aspx</a></p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1698455" width="1" height="1">http://msmvps.com/blogs/luisabreu/archive/2009/07/06/multithreading-the-volatile-keyword-part-ii.aspx#1698450Mon, 06 Jul 2009 17:47:41 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1698450Timothy Fries<p>I thought Monitor.Enter and Monitor.Exit provided memory fences implicitly. &nbsp;Is that not the case?</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1698450" width="1" height="1">