reproducable crash in xemacs 21.5 beta 9

Problem description =================== I've noticed this problem several times when editting C / C++ files. I'm in C++ major mode, with or without font-lock. The line I'm trying to edit is... gen_concept::gen_concept() I get as far as the 2nd colon, at which point the system crashes and coredumps. I have seen this with % characters from my SWIG header files. Interestingly, although I can reliably reproduce this crash, I have used this exact installation to edit 1000's of lines of C++ with very little trouble. I can make the system crash without doing any editting by issuing the command M-x c-electric-colon Xemacs version ============== xemacs --version XEmacs 21.5 (beta9) "brussels sprouts" [Lucid] (sparc-sun-solaris2.7) Installation details ==================== uname -a: SunOS trex 5.7 Generic_106541-20 sun4u sparc SUNW,Ultra-5_10 ./configure '--prefix=/hm/npavey/bin/xemacs-21.5.9' XEmacs 21.5-b9 "brussels sprouts" configured for `sparc-sun-solaris2.7'. Compilation / Installation: Source code location: /usr1/npavey/Downloads/xemacs/xemacs-21.5.9 Installation prefix: /hm/npavey/bin/xemacs-21.5.9 Runtime library search path: /usr/ccs/lib:/usr/dt/lib:/usr/openwin/lib:/util/gnu/lib/gcc-lib/sparc-su n-solaris2.7/2.95.2:/util/gnu/lib Operating system description file: `s/sol2.h' Machine description file: `m/sparc.h' Compiler: gcc -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -Wshadow -Wpointer-arith Relocating allocator for buffers: yes GNU version of malloc: yes Window System: Compiling in support for the X window system: - X Windows headers location: /usr/dt/include /usr/openwin/include - X Windows libraries location: /usr/dt/lib /usr/openwin/lib - Handling WM_COMMAND properly. Using Lucid menubars. Using Lucid scrollbars. Using Motif dialog boxes. Using Motif native widgets. TTY: Images: Compiling in support for GIF images (builtin). WARNING: ----------------------------------------------------------- WARNING: Compiling without XPM image support. WARNING: You should strongly consider installing XPM. WARNING: Otherwise toolbars and other graphics will look suboptimal. WARNING: (a copy may be found in ftp://ftp.xemacs.org/pub/xemacs/aux) WARNING: ----------------------------------------------------------- Compiling in support for PNG images. Sound: Compiling in support for sound (native). Databases: Compiling in support for DBM. Compiling in support for LDAP. Internationalization: Mail: Compiling in support for "dot-locking" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for ToolTalk. Compiling in support for dynamic shared object modules. Compiling in support for extra debugging code. WARNING: --------------------------------------------------------- WARNING: Compiling in support for runtime error checking. WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: --------------------------------------------------------- C stack trace from GDB ====================== #0 0xfec1c840 in _libc_kill () from /usr/lib/libc.so.1 (gdb) where #0 0xfec1c840 in _libc_kill () from /usr/lib/libc.so.1 #1 0x0009b518 in fatal_error_signal (sig=6) at emacs.c:3424 #2 <signal handler called> #3 0xfec1c840 in _libc_kill () from /usr/lib/libc.so.1 #4 0xfebb5a74 in abort () from /usr/lib/libc.so.1 #5 0x0009b6ac in zero_out_command_line_status_vars () at emacs.c:4267 -- -------------------------------------------- Nick Pavey Product Validation, Cadence Design Systems, Inc. 270 Billerica Road, Chelmsford, MA 01824 USA Direct line : 978 262 6362 --------------------------------------------