Cannot attach debugger to w3wp
When you reset IIS or IIS is not running, you need to make a call to the server, when you hit the server for the first time the w3wp process starts.
w3wp
How to debug w3wp clr.dll error
It looks like you have a StackOverflow Exception, which is caused by unbounded recursion (a function repeatedly calling itself, etc). This can’t be caught by regular try/catch block. You can track the problem down using DebugDiag and WinDbg. DebugDiag can be configured to generate a crash dump when the StackOverflowException occurs. Download at https://www.microsoft.com/en-us/download/details.aspx?id=58210. Open … Read more
W3WP.EXE using 100% CPU – where to start?
Standard Windows performance counters (look for other correlated activity, such as many GET requests, excessive network or disk I/O, etc); you can read them from code as well as from perfmon (to trigger data collection if CPU use exceeds a threshold, for example) Custom performance counters (particularly to time for off-box requests and other calls … Read more
What is w3wp.exe?
An Internet Information Services (IIS) worker process is a windows process (w3wp.exe) which runs Web applications, and is responsible for handling requests sent to a Web Server for a specific application pool. It is the worker process for IIS. Each application pool creates at least one instance of w3wp.exe and that is what actually processes … Read more