Using the latest SBCL and the latest SLIME, I'm having trouble load-op'ing swank (or systems that depend on it).  I either evaluate (asdf:oos 'asdf:load-op :swank) or do ,load-system swank RET.  In either case, ASDF goes to work and some output is printed ot the REPL buffer.  Then the output abruptly stops.  the *inferior-lisp* buffer shows a backtrace (attached).  This is an x86 Linux machine.  I tried clearing ~/.slime/fasl as well.
<br clear="all"><br>-- <br>Bill Atkins