问题
We recently upgraded our server From windows 2003 to Windows 2008 and from SQL Server 2005 to SQL Server 2008. The site in general works, but some pages keep on crashing. it seems like the pages who take a bit longer than the usual crash.
I get this
This webpage is not available
The connection to www.YourSite.com was interrupted.
I have a carbon copy of the site on my local machine and everything works perfect.
Where do I start?
Managed Pipeline Mode is set to Classic. Should I change it to Integrated? (My local machine has it set to integrated).
Event Viewer This happens every few minutes
Warning From WAS
A process serving application pool '186_NewSite' suffered a fatal communication error with the Windows Process Activation Service. The process id was '3832'. The data field contains the error number.
Application Error
Faulting application name: w3wp.exe, version: 7.5.7600.16385, time stamp: 0x4a5bd0eb
Faulting module name: mscorwks.dll, version: 2.0.50727.4961, time stamp: 0x4d8c149e
Exception code: 0xc0000005
Fault offset: 0x00000000006c2689
Faulting process id: 0x%9
Faulting application start time: 0x%10
Faulting application path: %11
Faulting module path: %12
.Net Runtime Error
.NET Runtime version 2.0.50727.4961 - Fatal Execution Engine Error (000007FEF8BD249A) (80131506)
This also happens quite often MSSQLSERVER Error
The client was unable to reuse a session with SPID 52, which had been reset for connection pooling. The failure ID is 29. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
来源：https://stackoverflow.com/questions/11213343/asp-net-pages-crash-in-iis-7-5-server-2008-but-worked-in-iis6-server-2003