https://svn.boost.org/trac10/ticket/6201 <p> 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. </p> <pre class="wiki">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); } </pre><p> Without the NDEGUB symbol it always works. With NDEBUG it works only with -O0. </p> <p> The call stack obtained with -O1 -g -DNDEBUG is the following: </p> <pre class="wiki">Program received signal SIGSEGV, Segmentation fault. get_color (n=&lt;optimized out&gt;) at /usr/include/boost/intrusive/detail/rbtree_node.hpp:136 136 { return (color)ptr_bit::get_bits(n-&gt;parent_); } (gdb) bt #0 get_color (n=&lt;optimized out&gt;) at /usr/include/boost/intrusive/detail/rbtree_node.hpp:136 #1 boost::intrusive::rbtree_algorithms&lt;boost::intrusive::rbtree_node_traits&lt;boost::interprocess::offset_ptr&lt;void&gt;, true&gt; &gt;::rebalance_after_insertion (header=..., p=...) at /usr/include/boost/intrusive/rbtree_algorithms.hpp:855 #2 0x0000000000409445 in insert_equal_upper_bound&lt;boost::intrusive::detail::key_nodeptr_comp&lt;std::less&lt;boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family&gt;::block_ctrl&gt;, boost::intrusive::rbtree_impl&lt;boost::intrusive::setopt&lt;boost::intrusive::detail::base_hook_traits&lt;boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family&gt;::block_ctrl, boost::intrusive::rbtree_node_traits&lt;boost::interprocess::offset_ptr&lt;void&gt;, true&gt;, (boost::intrusive::link_mode_type)0, boost::intrusive::default_tag, 3&gt;, std::less&lt;boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family&gt;::block_ctrl&gt;, unsigned long, true&gt; &gt; &gt; &gt; (comp=..., new_node=..., h=...) at /usr/include/boost/intrusive/rbtree_algorithms.hpp:539 #3 boost::intrusive::rbtree_impl&lt;boost::intrusive::setopt&lt;boost::intrusive::detail::base_hook_traits&lt;boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family, boost::interprocess::offset_ptr&lt;void&gt;, 0ul&gt;::block_ctrl, boost::intrusive::rbtree_node_traits&lt;boost::interprocess::offset_ptr&lt;void&gt;, true&gt;, (boost::intrusive::link_mode_type)0, boost::intrusive::default_tag, 3&gt;, std::less&lt;boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family, boost::interprocess::offset_ptr&lt;void&gt;, 0ul&gt;::block_ctrl&gt;, unsigned long, true&gt; &gt;::insert_equal (this=0x7ffff6477038, value=&lt;optimized out&gt;) at /usr/include/boost/intrusive/rbtree.hpp:482 #4 0x0000000000409550 in insert (value=&lt;optimized out&gt;, this=&lt;optimized out&gt;) at /usr/include/boost/intrusive/set.hpp:1569 #5 boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family, boost::interprocess::offset_ptr&lt;void&gt;, 0ul&gt;::priv_add_segment (this=&lt;optimized out&gt;, addr=&lt;optimized out&gt;, size=&lt;optimized out&gt;) 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&lt;char, boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family, boost::interprocess::offset_ptr&lt;void&gt;, 0ul&gt;, boost::interprocess::iset_index&gt;::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&lt;boost::interprocess::shared_memory_object, true, true&gt;::priv_open_or_create&lt;boost::interprocess::detail::create_open_func&lt;boost::interprocess::detail::basic_managed_memory_impl&lt;char, boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family, boost::interprocess::offset_ptr&lt;void&gt;, 0ul&gt;, boost::interprocess::iset_index, 16ul&gt; &gt; &gt; ( this=0x7fffffffe0a8, type=&lt;optimized out&gt;, id=&lt;optimized out&gt;, size=10485760, mode=&lt;optimized out&gt;, 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&lt;boost::interprocess::detail::create_open_func&lt;boost::interprocess::detail::basic_managed_memory_impl&lt;char, boost::interprocess::rbtree_best_fit&lt;boost::interprocess::mutex_family&gt;, boost::interprocess::iset_index, 16u&gt; &gt; &gt; (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=&lt;optimized out&gt;, this=0x7fffffffe0a0) at /usr/include/boost/interprocess/managed_shared_memory.hpp:90 #14 main (argc=&lt;optimized out&gt;, argv=&lt;optimized out&gt;) at /home/gaspa/programmazione/openni/main.cpp:25 </pre> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/6201 Trac 1.4.3 djgaspa@… Fri, 02 Dec 2011 23:34:06 GMT https://svn.boost.org/trac10/ticket/6201#comment:3 https://svn.boost.org/trac10/ticket/6201#comment:3 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>version</strong> <span class="trac-field-old">Boost 1.48.0</span> → <span class="trac-field-new">Boost 1.47.0</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">wontfix</span> </li> </ul> <p> I'm very sorry, for some strange reason I was still using 1.47.0 headers. The problem is there, but seems to be fixed in 1.48.0. </p> Ticket