The process handling this request unexpectedly died (203)

[VTPhil]

Off and on for the last twelve hours or so, I'm unable to serve any pages for my app.  From about 8 AM until 9:30 AM I was consistently seeing this issue.  Then for about 10 minutes or so the app was running fine.  Now, I'm seeing the issue again.

The log is showing the following:

1. I2012-04-04 09:57:44.602

   This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application.

2. I2012-04-04 09:57:44.602

   The process handling this request unexpectedly died. This is likely to cause a new process to be used for the next request to your application. (Error code 203)

  This app has been running for months now without any issues like this.  Any insight would be appreciated.

Thanks,

Phil