id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
6201,managed_shared_memory construstor crashes,djgaspa@…,Ion Gaztañaga,"The following code crashes with segmentation fault when compiled with the symbol -DNDEBUG and optimization -O1 or -O2 or -O3 using gcc 4.6.1 from ubuntu oneiric.

{{{
int main(int argc, char** argv)
{
    namespace bi = boost::interprocess;
    const char* name = ""foobar"";
    bi::shared_memory_object::remove(name);
    bi::managed_shared_memory segment(bi::create_only, name, 10 * 1024 * 1024);
}
}}}

Without the NDEGUB symbol it always works. With NDEBUG it works only with -O0.

The call stack obtained with -O1 -g -DNDEBUG is the following:

{{{
Program received signal SIGSEGV, Segmentation fault.
get_color (n=<optimized out>) at /usr/include/boost/intrusive/detail/rbtree_node.hpp:136
136	   {  return (color)ptr_bit::get_bits(n->parent_);  }
(gdb) bt
#0  get_color (n=<optimized out>) at /usr/include/boost/intrusive/detail/rbtree_node.hpp:136
#1  boost::intrusive::rbtree_algorithms<boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>, true> >::rebalance_after_insertion (header=..., p=...)
    at /usr/include/boost/intrusive/rbtree_algorithms.hpp:855
#2  0x0000000000409445 in insert_equal_upper_bound<boost::intrusive::detail::key_nodeptr_comp<std::less<boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family>::block_ctrl>, boost::intrusive::rbtree_impl<boost::intrusive::setopt<boost::intrusive::detail::base_hook_traits<boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family>::block_ctrl, boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>, true>, (boost::intrusive::link_mode_type)0, boost::intrusive::default_tag, 3>, std::less<boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family>::block_ctrl>, unsigned long, true> > > > (comp=..., new_node=..., h=...) at /usr/include/boost/intrusive/rbtree_algorithms.hpp:539
#3  boost::intrusive::rbtree_impl<boost::intrusive::setopt<boost::intrusive::detail::base_hook_traits<boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>, 0ul>::block_ctrl, boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>, true>, (boost::intrusive::link_mode_type)0, boost::intrusive::default_tag, 3>, std::less<boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>, 0ul>::block_ctrl>, unsigned long, true> >::insert_equal (this=0x7ffff6477038, value=<optimized out>)
    at /usr/include/boost/intrusive/rbtree.hpp:482
#4  0x0000000000409550 in insert (value=<optimized out>, this=<optimized out>) at /usr/include/boost/intrusive/set.hpp:1569
#5  boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>, 0ul>::priv_add_segment (this=<optimized out>, addr=<optimized out>, size=<optimized out>)
    at /usr/include/boost/interprocess/mem_algo/rbtree_best_fit.hpp:538
#6  0x0000000000409725 in rbtree_best_fit (this=0x7ffff6477010, extra_hdr_bytes=104, size=10485744) at /usr/include/boost/interprocess/mem_algo/rbtree_best_fit.hpp:374
#7  segment_manager_base (reserved_bytes=104, size=10485744, this=0x7ffff6477010) at /usr/include/boost/interprocess/segment_manager.hpp:96
#8  boost::interprocess::segment_manager<char, boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>, 0ul>, boost::interprocess::iset_index>::segment_manager (this=0x7ffff6477010, size=10485744) at /usr/include/boost/interprocess/segment_manager.hpp:408
#9  0x000000000040a00b in create_impl (size=10485744, addr=0x7ffff6477010, this=0x7fffffffe0a0) at /usr/include/boost/interprocess/detail/managed_memory_impl.hpp:178
#10 operator() (created=true, size=10485744, addr=0x7ffff6477010, this=0x7fffffffe088) at /usr/include/boost/interprocess/detail/managed_memory_impl.hpp:735
#11 boost::interprocess::detail::managed_open_or_create_impl<boost::interprocess::shared_memory_object, true, true>::priv_open_or_create<boost::interprocess::detail::create_open_func<boost::interprocess::detail::basic_managed_memory_impl<char, boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family, boost::interprocess::offset_ptr<void>, 0ul>, boost::interprocess::iset_index, 16ul> > > (
    this=0x7fffffffe0a8, type=<optimized out>, id=<optimized out>, size=10485760, mode=<optimized out>, addr=0x0, perm=..., construct_func=...)
    at /usr/include/boost/interprocess/detail/managed_open_or_create_impl.hpp:374
#12 0x0000000000404bfb in managed_open_or_create_impl<boost::interprocess::detail::create_open_func<boost::interprocess::detail::basic_managed_memory_impl<char, boost::interprocess::rbtree_best_fit<boost::interprocess::mutex_family>, boost::interprocess::iset_index, 16u> > > (construct_func=..., mode=boost::interprocess::read_write, id=@0x7fffffffe0f8, this=0x7fffffffe0a8, perm=..., addr=0x0, size=10485760)
    at /usr/include/boost/interprocess/detail/managed_open_or_create_impl.hpp:170
#13 basic_managed_shared_memory (perm=..., addr=0x0, size=10485760, name=0x40a8e8 ""foobar"", create_only=<optimized out>, this=0x7fffffffe0a0) at /usr/include/boost/interprocess/managed_shared_memory.hpp:90
#14 main (argc=<optimized out>, argv=<optimized out>) at /home/gaspa/programmazione/openni/main.cpp:25
}}}",Bugs,closed,To Be Determined,interprocess,Boost 1.47.0,Problem,wontfix,managed_shared_memory gcc optimization,