Unable to display this web part. Error while executing web part: System.StackOverflowException: Operation caused a stack overflow in SharePoint 2010

In this post, I will explain an error user frequently see on their screen.

Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator.
Correlation ID: XXXX.

After analyzing the log file in 14 hive I got the below error

Error while executing web part: System.StackOverflowException: Operation caused a stack overflow.

After doing R & D I found that in August 2011 Cumulative update for SharePoint 2010, there is a timeout put on the XSLT transforms.

And after running the following commands at the PowerShell prompt.

 $farm = Get-SPFarm

$farm.XsltTransformTimeOut = 5

$farm.Update()

The page now appears correctly.