valgrind gazebo

valgrind gazebo
==7854== Memcheck, a memory error detector
==7854== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==7854== Using Valgrind-3.6.1-Debian and LibVEX; rerun with -h for copyright info
==7854== Command: gazebo
==7854==
IfaceFactory::RegisterIface("simulation", 6ebb1e0);
IfaceFactory::ifaces size = 0
==7854== Invalid read of size 8
==7854==    at 0x644384A: std::_Rb_tree_decrement(std::_Rb_tree_node_base*) (tree.cc:91)
==7854==    by 0x6EC0B76: std::_Rb_tree_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >::operator--() (stl_tree.h:203)
==7854==    by 0x6EC07ED: std::_Rb_tree<std::string, std::pair<std::string const, gazebo::Iface* (*)()>, std::_Select1st<std::pair<std::string const, gazebo::Iface* (*)()> >, std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::_M_insert_unique(std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_tree.h:1277)
==7854==    by 0x6EC008B: std::_Rb_tree<std::string, std::pair<std::string const, gazebo::Iface* (*)()>, std::_Select1st<std::pair<std::string const, gazebo::Iface* (*)()> >, std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::_M_insert_unique_(std::_Rb_tree_const_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >, std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_tree.h:1330)
==7854==    by 0x6EBFD25: std::map<std::string, gazebo::Iface* (*)(), std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::insert(std::_Rb_tree_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >, std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_map.h:571)
==7854==    by 0x6EBFAC3: std::map<std::string, gazebo::Iface* (*)(), std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::operator[](std::string const&) (stl_map.h:453)
==7854==    by 0x6EBF689: gazebo::IfaceFactory::RegisterIface(std::string, gazebo::Iface* (*)()) (IfaceFactory.cc:47)
==7854==    by 0x6EBB25B: RegisterSimulationIface() (Iface.cc:48)
==7854==    by 0x6EBD8A9: LibgazeboPluginRegister::LibgazeboPluginRegister(void (*)()) (IfaceFactory.hh:38)
==7854==    by 0x6EBD631: __static_initialization_and_destruction_0(int, int) (Iface.cc:48)
==7854==    by 0x6EBD7BD: _GLOBAL__sub_I_Iface.cc (Iface.cc:437)
==7854==    by 0x400EB25: call_init.part.0 (dl-init.c:85)
==7854==  Address 0x8 is not stack'd, malloc'd or (recently) free'd
==7854==
==7854==
==7854== Process terminating with default action of signal 11 (SIGSEGV)
==7854==  Access not within mapped region at address 0x8
==7854==    at 0x644384A: std::_Rb_tree_decrement(std::_Rb_tree_node_base*) (tree.cc:91)
==7854==    by 0x6EC0B76: std::_Rb_tree_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >::operator--() (stl_tree.h:203)
==7854==    by 0x6EC07ED: std::_Rb_tree<std::string, std::pair<std::string const, gazebo::Iface* (*)()>, std::_Select1st<std::pair<std::string const, gazebo::Iface* (*)()> >, std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::_M_insert_unique(std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_tree.h:1277)
==7854==    by 0x6EC008B: std::_Rb_tree<std::string, std::pair<std::string const, gazebo::Iface* (*)()>, std::_Select1st<std::pair<std::string const, gazebo::Iface* (*)()> >, std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::_M_insert_unique_(std::_Rb_tree_const_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >, std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_tree.h:1330)
==7854==    by 0x6EBFD25: std::map<std::string, gazebo::Iface* (*)(), std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::insert(std::_Rb_tree_iterator<std::pair<std::string const, gazebo::Iface* (*)()> >, std::pair<std::string const, gazebo::Iface* (*)()> const&) (stl_map.h:571)
==7854==    by 0x6EBFAC3: std::map<std::string, gazebo::Iface* (*)(), std::less<std::string>, std::allocator<std::pair<std::string const, gazebo::Iface* (*)()> > >::operator[](std::string const&) (stl_map.h:453)
==7854==    by 0x6EBF689: gazebo::IfaceFactory::RegisterIface(std::string, gazebo::Iface* (*)()) (IfaceFactory.cc:47)
==7854==    by 0x6EBB25B: RegisterSimulationIface() (Iface.cc:48)
==7854==    by 0x6EBD8A9: LibgazeboPluginRegister::LibgazeboPluginRegister(void (*)()) (IfaceFactory.hh:38)
==7854==    by 0x6EBD631: __static_initialization_and_destruction_0(int, int) (Iface.cc:48)
==7854==    by 0x6EBD7BD: _GLOBAL__sub_I_Iface.cc (Iface.cc:437)
==7854==    by 0x400EB25: call_init.part.0 (dl-init.c:85)
==7854==  If you believe this happened as a result of a stack
==7854==  overflow in your program's main thread (unlikely but
==7854==  possible), you can try to increase the size of the
==7854==  main thread stack using the --main-stacksize= flag.
==7854==  The main thread stack size used in this run was 8388608.
==7854==
==7854== HEAP SUMMARY:
==7854==     in use at exit: 342,726 bytes in 513 blocks
==7854==   total heap usage: 518 allocs, 5 frees, 345,039 bytes allocated
==7854==
==7854== LEAK SUMMARY:
==7854==    definitely lost: 0 bytes in 0 blocks
==7854==    indirectly lost: 0 bytes in 0 blocks
==7854==      possibly lost: 249,052 bytes in 214 blocks
==7854==    still reachable: 93,674 bytes in 299 blocks
==7854==         suppressed: 0 bytes in 0 blocks
==7854== Rerun with --leak-check=full to see details of leaked memory
==7854==
==7854== For counts of detected and suppressed errors, rerun with: -v
==7854== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 4 from 4)
Segmentation fault