path: sbcl_2:2.6.2-1/doc/manual/support-and-bugs.texinfo @item Attach gdb: @code{gdb -p } and get backtraces for all threads: @code{thread apply all ba}. path: sbcl_2:2.6.2-1/doc/manual/support-and-bugs.texinfo @item If it just hangs kill it with sigabrt: @code{kill -ABRT }. @item