potentially-invalid effective methods in its cache.
* improvement: on x86/x86-64 Lisp call frames now have the same layout as C
frames, allowing for instance more reliable backtraces.
+ * optimization: faster local calls on x86/x86-64
changes in sbcl-1.0.27 relative to 1.0.26:
* new port: support added for x86-64 OpenBSD. (thanks to Josh Elsasser)