I recently got my website switched to a VPS server with WHM+Cpanel. Everything went good and the performance also got better. But after couple of days, my website got down with the above error message, "The chkservd process has become non-responsive". Due to this, I was not even able to log into WHM as well. I tried contacting to my Hosting adminwhich went into vain. So, I started scrambling on internet for a quick solution (when I got into this forum as well - The chkservd process has become non-responsive). This thread was also not much helpful as no clear solution was provided. After much research I found out that, this error came up due to a sudden load on my website which caused the website to crash. Although, the number of visitors were not so many that it could lead to this error. Later, I came to know that some of the services were installed on my website which was causing unwanted load on the server. Restarting the server solved the problem and then I had to uninstall all the unwanted services as well. Hope it helps you all facing the same issue!