IIS 6.0 Application Pool crash

Question

Have a lot of troubles on production server. Some routing cause crashing of Application Pool with event id 1011:

Event Type: Warning Event Source: W3SVC Event Category: None Event ID: 1011 Date: 1/21/2009 Time: 9:08:17 AM User: N/A Computer: xxxxxxxxxxxxx Description:

A process serving application pool 'DefaultAppPool' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '3788'. The data field contains the error number. 8007006d

I have a few very hard hours for me before I found a problem. Thanks to Tess Ferrandez and her blog post I found it.

Always double check Your multithreaded code in asp.net application. When Unhandled exceptions occurs application pool crashes and it's damn hard to find WHY.

Answer 1

Yes, Tess is an angel.

Answer 2

Our company SharePoint site was keeps on crashing. When I looked at IIS, it was application pool keep on crashing whenever anyone opens the site. If we restart the site and try again going to the page, it crashes again. This is what I did to solve the problem... - I went to IIS - Application Pool - SharePoint Site Properties | Identity | Configurable - I removed the user name and password - Entered the user name and password again

I did this to all the SharePoint sites are in the application pool and it seem to solve the problem.