Re: [Boost-users] [program_options] seg fault on ppc64 / linux / gcc 3.4.4

From: Vladimir Prus (ghost_at_[hidden])
Date: 2005-08-16 02:28:32

Hi Liam,

> Here is a simple test program (based on one of the early examples):
> 
> =========
> #include <boost/program_options.hpp>
> namespace po = boost::program_options;
> 
> int main ( int, char* )
> {
>    po::options_description generic("Generic options");
> 
>    generic.add_options() ("version,v", "print version string");
>    generic.add_options() ("help", "produce help message");
> 
>    return ( 0 );
> }
> =========
> 
> The seg fault happens on the second add_options() line. If the two lines
> are combined (as in the original example) it faults somewhere in there,
> but I think it is the same place.
> 
> My gdb session:
> 
> =========

> #0  0x000000800005d7a8 in
> ._ZN5boost6detail17sp_counted_impl_pINS_15program_options18option_descriptionEE7disposeEv
> ()
>    from /usr/lib/libboost_program_options.so.1.33.0
> 
> (gdb) up
> #1  0x0000008000057b90 in
> ._ZN5boost15program_options29options_description_easy_initclEPKcS3_ ()
> from /usr/lib/libboost_program_options.so.1.33.0

My first guess is single-threaded/multi-threaded mismatch. Did you try
compiling the application with -pthread? Do you know if the program_options
library you use is build with multithreading or not?

HTH,
Volodya