(gdb) run
Starting program: /opt/inkscapesvn/bin/inkscape
[Thread debugging using libthread_db enabled]
[New Thread 0xb66476d0 (LWP 25354)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb66476d0 (LWP 25354)]
0xb6ab1a84 in std::_Rb_tree_insert_and_rebalance ()
   from /usr/lib/libstdc++.so.6
(gdb) s
Single stepping until exit from function _ZSt29_Rb_tree_insert_and_rebalancebPSt18_Rb_tree_node_baseS0_RS_,
which has no line number information.
inkscape_crash_handler (signum=11) at inkscape.cpp:390
390     inkscape_crash_handler (int signum)