Help with system.stackoverflowexception

Question

All of a sudden my app is handing this out in the application event viewer:

EventType clr20r3, P1 w3wp.exe, P2 6.0.3790.3959, P3 45d6968e, P4 app_code.ahowircm, P5 0.0.0.0, P6 4b167253, P7 30, P8 0, P9 system.stackoverflowexception, P10 NIL.

Nothing has changed since yesterday, and everything worked fine before. The server is running some .net 2.0 webservices on top of Windows Server 2003.!!!!!

Edit:

Also I'm running this on two servers, 2008R2 and 2003, the exact same code, on 2008R2 it works fine, but on 2003 it stops the application pool.

Answer 1

This usually points to a runaway recursive call (on purpose or not). Hard to tell without seeing some code.

Answer 2

Your code may not have changed, but chances are your data has. See if any data added recently will cause odd conditions to occur.

Answer 3

You really need a full stack trace to figure out what's going on. Are you logging your exceptions anywhere? If not, you can quickly wireup an event handler.

Answer 4

Not really an answer, more of a "related interesting info" on those CL20r3 event logs entryies.

as an aside:CLR20r3 explaination

P1 Application Name

P2 Application version

P3Application time stamp

P4 Assembly/Module name

P5 Assembly/Module version

P6 Assembly/Module timestamp

P7 MethodDef

P8 IL offset

P9 Exception name

You could use ILDASM on P1, search for a MethodDef of 060000xx (where xx is P7), to get the method throwing.

Then use reflector to see the code, view it in IL mode and find the line of IL at P8.

Often it will point you directly to the line that threw the exception.