Forum Discussion
IIS App pool crashes
Hi, We are experiencing some random app pool crashes on one of our production servers. I've put in place additional logging and analysed it through DebugDiag. The output from that is: ...
Hi,
The crash is occurring inside clr.dll, but that does not necessarily indicate a CLR defect. An Access Violation (0xC0000005) is commonly caused by memory corruption introduced by native code loaded into the IIS worker process.
The first step is to identify all third-party native modules loaded into w3wp.exe and review the DebugDiag call stack and loaded module list for non-Microsoft components. I would also recommend checking the Windows Application Event Log for Event ID 1000 or 1026 around the crash time, as the faulting module may provide additional clues.