1) add a try catch block and verify that the dump isn't a result of an

uncaught exception. Done. Same result.

2) provide a backtrace?

Okay; here it is: Program terminated with signal 11, Segmentation fault. #0 0x407c851 in boost::detail::atomic_increment (pw=0x400087a4) at sp_counted_base_gcc_ia64.hpp:38 38 "r"(pw)); (gdb) backtrace #0 0x407c851 in boost::detail::atomic_increment (pw=0x400087a4) at sp_counted_base_gcc_ia64.hpp:38 #1 0x407cc60 in boost::detail::sp_counted_base::add_ref_copy (this=0x400087a0) at sp_counted_base_gcc_ia64.hpp:117 #2 0x407cdb0 in boost::detail::shared_count::shared_count (this=0x7ffff0f8, r=@0x7ffff128) at shared_count.hpp:170 #3 0x4087700 in boost::shared_ptr

::boost::shared_ptr

har> > (this=0x7ffff0f4) at shared_ptr.hpp:106 #4 0x40af160 in std::pair,boost::re_detail::cpp_regex_traits_base<char> const*

::std::pair,boost::re_detail::cpp_regex_traits_base<char> const* > (this=0x7ffff0f4, __a=@0x7ffff124, __b=@0x7ffff0f0) at stl_pair.h:85 #5 0x4119f40 in boost::object_cache::do_get ( k=@0x7ffff1b0, max_cache_size=5) at object_cache.hpp:122 #6 0x411b190 in boost::object_cache::get ( k=@0x7ffff1b0, max_cache_size=5) at object_cache.hpp:78 #7 0x411b250 in boost::shared_ptr

...

boost::re_detail::create_cpp_regex_traits<char> (l=@0x7ffff1e0) at cpp_regex_traits.hpp:822 #8 0x411b380 in boost::cpp_regex_traits<char>::boost::cpp_regex_traits<char> ( this=0x40008760) at cpp_regex_traits.hpp:842 #9 0x411b480 in boost::regex_traits (this=0x40008760) at regex_traits.hpp:68 #10 0x411b500 in boost::regex_traits_wrapper ::boost::regex_traits_wrapper > (this=0x40008760) at regex_traits.hpp:162 #11 0x411b5b0 in boost::re_detail::regex_data ::boost::re_detail::regex_data > (this=0x4000f410) at basic_regex.hpp:54 #12 0x411b740 in boost::re_detail::basic_regex_implementation ::boost::re_detail::basic_regex_implementation > ( this=0x4000f410) at basic_regex.hpp:85 #13 0x411b880 in boost::basic_regex >::do_assign (this=0x7ffff2d8, p1=0x404d950 ".", p2=0x404d951 "", f=0) at basic_regex.hpp:517 #14 0x4079f10 in boost::basic_regex >::assign+0x90 () #15 0x407a000 in boost::basic_regex >::assign+0xc0 () #16 0x407a100 in boost::basic_regex ::boost::basic_regex >+0xd0 () #17 0x4067ee0:0 in ValidateArgs+0x430 () #18 0x4068800:0 in main+0xc0 () Current language: auto; currently c++

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