Re: Seg Fault on program exit with OCI in shared library with dlopen() on Linux

I little more info on this. The function in which the seg violation is occuring (epc_exit_handler) is in the Oracle client libraries (libclntsh.so and libclntst.a).

"Mike R. Prevost" <mprevost_at_gradkell.com> wrote in message news:XyzH6.2526$c4.339688_at_e420r-chi1.usenetserver.com...
> I'm having a frustrating problem. I am writing a shared library that
 contains all my database logic. This library is dynamically
> loaded at runtime via the dlopen()/dlsym() interface. I'm porting
 from a Win32 DLL to Linux and then to HP-UX.
>
> Everything works great with the shared library. I can link it in with
 a driver program at link time and all is well. However, when
> I dynamically load it, the program seg faults when exiting. gdb tells
 me:
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x4036df9c in epc_exit_handler ()
>
> At first glance, this appears like some sort of stack corruption. It
 might be, but I don't think it is a result of my code because
> it only happens when the OCI shared library is dynamically loaded.
 ALSO, I am able to dynamically load other shared libraries
> without this problem.
>
> I'm made sure that the top level "driver" program is linked with
 libpthread. This evidently is a requirement when using OCI via
> shared libraries. I've also tried linking the shared library against
 both libclntst8.a as well as libclntsh.so. Same story in both
> cases.
>
> Has anyone run across this before?!?!
>
> Thanks.
>
> --- Mike R. Prevost
> mprevost_at_gradkell.com
>
>
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Received on Tue May 01 2001 - 17:55:21 CEST