transhed stack error message

[sathis kumar]

Hello,
We are getting the error "Pid 26693 killed due to trashed stack.Pid 26693 was killed due to failure in writing the signal context" while we run our application. We are using HP UX B11.11 (using multithreading concept), Oracle 10g version. But the same is working fine with Oracle 9i version. We got some inputs saying that increasing the stack size will resolve the issue. Could anyone explain us about the following?
1)Does the stack size set with any specific system calls ( like pthread_set_stack_size)
2)Does this have to be done by a System admin person or it needs to be done in the application level?
3)How to find out the stack value set for a pthread?
4)Is there any default value for the stack size? If yes then how to check that?

Your help on this would really be appreciated.

Thanks in advance.