[Sbcl-help] SLIME, SBCL, saving and using images

[Tamas K P. <tk...@gm...>]

Hi,

I am debugging a library with an FFI which sometimes segfaults because
of memory problems (not a problem with SBCL, but bugs in the interface
I am writing).  Then I have to restart the lisp process, load
everything, etc, which is a bit cumbersome.

I thought of saving a lisp image at a "safe" point (ie before testing
the buggy functions) and reloading it, but I could not figure out how
to do this in SLIME.  The reloading looks easy with 

(setq slime-lisp-implementations
      '((my-image ("sbcl" "--core /home/tpapp/my.core"))))

in my .emacs, but when I want to use

CL-USER> (sb-ext:save-lisp-and-die #P"/home/tpapp/my.core")

SBCL complains about multiple threads -- I guess this is SLIME/swank,
I don't use threads in my code.  I looked at the docs, which told me
that I can take care of this with SB-EXT:*SAVE-HOOKS*, but I don't
know how to go about this.  I wonder if someone could give me
details/examples on how to establish a workflow of saving and using
images with SLIME & SBCL.

Thanks,

Tamas

PS.: If that matters, I am using SBCL 1.0.45 (but I can upgrade if
necessary) and SLIME 2011-03-13.