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I am trying to connect to the Oracle database using the DSN in my web application and when I browse the site the app pool crashes. The DSN is set up correctly I think because when I hit Test connection it successfully connects. When I looked at the Event viewer If found the Application Error with below details,

Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7a5f8
Faulting module name: oracommon11.dll, version: 11.2.0.1, time stamp: 0x4bb5eab3
Exception code: 0xc00000fd
Fault offset: 0x000f7ac0
Faulting process id: 0x1fa8
Faulting application start time: 0x01d0c88b19a0096c
Faulting application path: C:\Windows\SysWOW64\inetsrv\w3wp.exe
Faulting module path: C:\app\Administrator\product\11.2.0\client_1\BIN\oracommon11.dll
Report Id: 5ab8a5bc-347e-11e5-9b7b-d067e50cb873

I found this pretty similar but it is similar not exactly my exception. So I am confused. Any help would be great to resolve this issue.

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    0xc00000fd is a stack overflow. Does the application use any recursive methods in its global.asax? – Frank Thomas Jul 27 '15 at 18:00
  • No not any recursive methods. But when I connect the same application on other IIS using other Oracle server installation then it works just fine. But on this particular machine with Oracle server is giving me this issue – Madhukar Devale Jul 27 '15 at 18:13
  • Well, since the error is occuring within the oracle common dll, check your oracle client installation. Also, is this a user DSN? if so, is it accessible to the application pool identity user? – Frank Thomas Jul 28 '15 at 3:15
  • No it is System DSN. Yes it is accessible to the application pool identity user. – Madhukar Devale Jul 28 '15 at 13:22

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