error with sanwk

Hi,

I get this error when loading swank with cmucl 19d:

----------------------------------------------------------------------
#(7) fell through ETYPECASE expression.
Wanted one of (FUNCTION PCL::FAST-INSTANCE-BOUNDP FIXNUM PCL::METHOD-CALL
               PCL::FAST-METHOD-CALL).
   [Condition of type CONDITIONS::CASE-FAILURE]

Restarts:
  0: [RETRY   ] Retry performing #<ASDF:LOAD-OP NIL {583F47E5}> on
                #<ASDF:CL-SOURCE-FILE "swank-loader" {5840CCCD}>.
  1: [ACCEPT  ] Continue, treating #<ASDF:LOAD-OP NIL {583F47E5}> on
                #<ASDF:CL-SOURCE-FILE "swank-loader" {5840CCCD}> as
                having been successful.
  2: [CONTINUE] Return NIL from load of "make-image.lisp".
  3: [ABORT   ] Skip remaining initializations.

Debug  (type H for help)

(PCL::INVOKE-EMF #(7)
                 (#<ASDF:CL-SOURCE-FILE "swank-loader" {5840CCCD}>
                  #<ASDF:LOAD-OP NIL {583F47E5}>))
Source: Error finding source: 
Error in function DEBUG::GET-FILE-TOP-LEVEL-FORM:  Source file no longer exists:
  target:pcl/boot.lisp.
0] 
----------------------------------------------------------------------

Some notes:

0. I'm loading swank because uncommon web needs it

1. I'm using the linux binary of cmucl 19d from cmucl site [1]

2. I have the lisp binary in
   ~/lisp/bin
   and the rest in ~/lisp/lib/cmucl

3. I have a file (make-image.lisp) that goes like:
   ... stuff to setup asdf ...
   (asdf :swank)
   #+cmu (extensions:save-lisp (concatenate 'string *lisp-dirs* "images/"
"cmucl.core"))

4. then I run lisp -load make-image.lisp

I'm using debian etch. I don't get this error if I use the cmucl package
that comes with debian. Also, I just installed this debian box and the error
was _not_ occurring before with arch linux. So I suppose it has
something to do with the oficial cmucl binary running on the debian.

The kernel I have is 2.6.18-2-686.

Any ideas?

Pedro Kroger

Footnotes: 
[1]
http://common-lisp.net/project/cmucl/downloads/release/19d/cmucl-19d-x86-linux.tar.bz2