[slime-devel] SB-EXT:PACKAGE-LOCKED-ERROR

Hello:

Using cvs ver last update july 21. Inferior lisp is SBCL 0.9.0

When loading lisp file and typing M-x slime, I get the following (abbreviated) error message debugger invoked on a SB-EXT:PACKAGE-LOCKED-ERROR in thread 2427: Lock on package SB-VM violated when interning THREAD-OS-THREAD-SLOT. See also: The SBCL Manual, Node "Package Locks" ..... (SB-EXT:PACKAGE-LOCK-VIOLATION #<PACKAGE "SB-VM">)

I'm new to lisp and slime, and relatively callow with emacs.

I'm currently looking at http://www.sbcl.org/manual/Operations-Violating-Package-Locks.html#Operation... but given my unfamiliarity with the topic, I'm currently unsure of a fix.

Any help, advice or pointers to docs is welcome. Thanks tim