Utz-Uwe Haus {usenet} wrote:

"Florian Ebeling" florian.ebeling@gmail.com writes:

...

My emacs in slime mode hangs quite oft imidiatly after announcing a GC run, usually from a Slime mode buffer, not from REPL. I use CMUCL and Slime from CVS. Is this a known behaviour?

At least I have to see 'me too' for this, if by 'emacs hangs' you mean the slime->lisp connection gets stuck in "eval state" (as announced in the modeline). Emacs itself is not unresponsive, but everything involving slime obviously hang. I tried to locate the cause and could improve things a bit by removing the pre-gc-hook and post-gc-hook in swank-cmucl.lisp. Now it takes longer till hang occurs.

Any debugging leads greatly appreciated.

We had a similar problem with our slightly aged CMUCL. The following change to swank-cmucl.lisp fixed it:

;(defimplementation make-weak-key-hash-table (&rest args) ; (apply #'make-hash-table :weak-p t args))

I.E. Comment out the above definition.

later Utz