Memory corruption errors!?

Hi, I have started to get errors like the line below the last week or so: "*** glibc detected *** malloc(): memory corruption: 0x088cc680 ***" Could this have anything to do with the new GC? Would a backtrace be helpful? ---------------------------------------------------------------------- uname -a: Linux spencer 2.6.15-gentoo-r1 #1 SMP PREEMPT Mon Jan 23 00:30:12 CET 2006 i686 Intel(R) Pentium(R) M processor 1300MHz GenuineIntel GNU/Linux ./configure '--prefix=/src/xemacs' '--enable-mule' '--with-package-path=/src/xemacs/xemacs-packages:/src/xemacs/mule-packages:/src/xemacs/site-packages' '--enable-sound=esd' '--enable-database=no' '--enable-kkcc' '--enable-mc-alloc' '--enable-widgets=athena' '--enable-dialogs=athena' '--with-athena=3d' '--with-xim=xlib' '--with-xfs=all' XEmacs 21.5-b25 "eggplant" (+CVS-20060313) configured for `i686-pc-linux'. Compilation Environment and Installation Defaults: Source code location: /src/xemacs/working Installation prefix: /src/xemacs Operating system description file: `s/linux.h' Machine description file: `m/intel386.h' Compiler version: gcc (GCC) 3.4.5 (Gentoo 3.4.5, ssp-3.4.5-1.0, pie-8.7.9) - GCC specs file: /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/specs - Compiler command: gcc -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wunused-parameter -g libc version: 2.3.5 Relocating allocator for buffers: no GNU version of malloc: yes - Using Doug Lea's new malloc from the GNU C Library. Window System: Compiling in support for the X window system: - X Windows headers location: /usr/X11R6/include - X Windows libraries location: /usr/X11R6/lib - Handling WM_COMMAND properly. Compiling in support for the Athena widget set: - Athena headers location: X11/Xaw3d - Athena library to link: Xaw3d Using Lucid menubars. Using Lucid scrollbars. Using Athena dialog boxes. Using Athena native widgets. TTY: Compiling in support for ncurses. Compiling in support for GPM (General Purpose Mouse). Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Compiling in support for TIFF images. Compiling in support for X-Face message headers. Sound: Compiling in support for sound (native). Compiling in support for ESD (Enlightened Sound Daemon). Databases: Internationalization: Compiling in support for Mule (multi-lingual Emacs). Compiling in support for XIM (X11R5+ I18N input method). - Using raw Xlib to provide XIM support. Mail: Compiling in support for "file" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for dynamic shared object modules. Using the new GC mark algorithms (KKCC). WARNING: --------------------------------------------------------- WARNING: The new algorithms are experimental. They are enabled by WARNING: default for this release. Use `--disable-kkcc' to WARNING: turn it off. WARNING: --------------------------------------------------------- Using the new portable dumper. Dumping into executable. Compiling in support for extra debugging code. Compiling in support for runtime error checking. WARNING: --------------------------------------------------------- WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: --------------------------------------------------------- ---------------------------------------------------------------------- Yours -- %% Mats