Package: sbcl Version: 1:1.0.9.0-1 Severity: important Hi, I get the following warnings when running the attached code: ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; * (load "debug") T * (main) warning: attempted to scavenge non-descriptor value 40942156 at 0x7f9b9d88. If you can reproduce this warning, please send a bug report (see manual page for details). warning: attempted to scavenge non-descriptor value 40942156 at 0x7f9ba1b8. If you can reproduce this warning, please send a bug report (see manual page for details). warning: attempted to scavenge non-descriptor value 408e163a at 0x7f9b9d88. If you can reproduce this warning, please send a bug report (see manual page for details). warning: attempted to scavenge non-descriptor value 408e163a at 0x7f9ba1b8. If you can reproduce this warning, please send a bug report (see manual page for details). ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; The code is from a bigger project but I could reduce it to a few lines. It seems to be a problem with the garbage collector (more precisely with src/runtime/gc-common.c). The bug might only occur on non x86/X86_64 machines. Regards -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable') Architecture: powerpc (ppc) Kernel: Linux 2.6.18 Locale: LANG=en_IE@euro, LC_CTYPE=en_IE@euro (charmap=ISO-8859-15) Shell: /bin/sh linked to /bin/bash Versions of packages sbcl depends on: ii common-lisp-controller 6.11 Common Lisp source and compiler ma ii libc6 2.6.1-1 GNU C Library: Shared libraries Versions of packages sbcl recommends: ii binfmt-support 1.2.10 Support for extra binary formats -- no debconf information -- Philipp Benner