zsh 2.6-beta13 problem on SCO Unix 5.0v3.2

[Paul Lew <lew@xxxxxxxxxxxxxxxxxx>]

I built zsh 2.6-beta13 on SCO Unix 5.0v3.2 and it runs ok.  But for
some reason, the zsh is using all the virtual memory and cause the
machine to hang and the only way out is to reboot the machine.

	  SZ  VSZ COMMAND	<-- this is the output of the command:
	43416 44188 -zsh	<-- "ps -e -o size -o vsz -o args"

So the program size is over 44 MB, seems like a memory leak somewhere.
This happen about twice a week, currently, we use the SCO machine
lightly.  Anyone has a clue about this?  Any suggestion to detect
the problem?  Thanks in advance...

					-- Paul  02/19/96  05:38 PM --
$ uname -a
SCO_SV scpc 3.2 2 i386

$ gcc -v
Reading specs from /usr/cygnus/progressive-95q4/
	H-i486-unknown-sco3.2v5.0.0/
	lib/gcc-lib/i486-unknown-sco3.2v5.0.0/2.7-95q4/specs
gcc version 2.7-95q4

$ cat config.h
/* config.h.  Generated automatically by configure.  */
/* config.h.in.  Generated automatically from configure.in by autoheader.  */

/***** begin user configuration section *****/

/* Define this to be the location of your password file */
#define PASSWD_FILE "/etc/passwd"

/* Define this to be the name of your NIS/YP password *
 * map (if applicable)                                */
#define PASSWD_MAP "passwd.byname"

/* Define to 1 if you want user names to be cached */
#define CACHE_USERNAMES 1

/* Define to 1 if system supports job control */
#define JOB_CONTROL 1

/* Define to 1 if system has working FIFO's */
#define HAVE_FIFOS 1

/* Define this if you use "suspended" instead of "stopped" */
#define USE_SUSPENDED 1
 
/* The default history buffer size in lines */
#define DEFAULT_HISTSIZE 30

/* The default editor for the fc builtin */
#define DEFAULT_FCEDIT "vi"

/* The default prefix for temporary files */
#define DEFAULT_TMPPREFIX "/tmp/zsh"

/* The global file to source absolutely first whenever zsh is run; *
 * if undefined, don't source anything                             */
#define GLOBAL_ZSHENV "/etc/zshenv"

/* The global file to source whenever zsh is run; *
 * if undefined, don't source anything            */
#define GLOBAL_ZSHRC "/etc/zshrc"

/* The global file to source whenever zsh is run as a login shell; *
 * if undefined, don't source anything                             */
#define GLOBAL_ZLOGIN "/etc/zlogin"

/* The global file to source whenever zsh is run as a login shell, *
 * before zshrc is read; if undefined, don't source anything       */
#define GLOBAL_ZPROFILE "/etc/zprofile"

/* The global file to source whenever zsh was run as a login shell.  *
 * This is sourced right before exiting.  If undefined, don't source *
 * anything                                                          */
#define GLOBAL_ZLOGOUT "/etc/zlogout"

/***** end of user configuration section            *****/
/***** shouldn't have to change anything below here *****/

/* Define to empty if the keyword does not work.  */
/* #undef const */

/* Define if the `getpgrp' function takes no argument.  */
#define GETPGRP_VOID 1

/* Define to `int' if <sys/types.h> doesn't define.  */
/* #undef gid_t */

/* Define if you have <sys/wait.h> that is POSIX.1 compatible.  */
#define HAVE_SYS_WAIT_H 1

/* Define to `int' if <sys/types.h> doesn't define.  */
/* #undef mode_t */

/* Define to `long' if <sys/types.h> doesn't define.  */
/* #undef off_t */

/* Define to `int' if <sys/types.h> doesn't define.  */
/* #undef pid_t */

/* Define as the return type of signal handlers (int or void).  */
#define RETSIGTYPE void

/* Define to `unsigned' if <sys/types.h> doesn't define.  */
/* #undef size_t */

/* Define if the `S_IS*' macros in <sys/stat.h> do not work properly.  */
/* #undef STAT_MACROS_BROKEN */

/* Define if you have the ANSI C header files.  */
#define STDC_HEADERS 1

/* Define if you can safely include both <sys/time.h> and <time.h>.  */
#define TIME_WITH_SYS_TIME 1

/* Define to `int' if <sys/types.h> doesn't define.  */
/* #undef uid_t */

/* Define to 1 if compiler incorrectly cast signed to unsigned */
/* #undef BROKEN_SIGNED_TO_UNSIGNED_CASTING */

/* Define if your system defines TIOCGWINSZ in sys/ioctl.h.  */
/* #undef GWINSZ_IN_SYS_IOCTL */

/* Define to 1 if you have NIS */
#define HAVE_NIS "1"

/* Define to 1 if you have RFS superroot directory. */
/* #undef HAVE_SUPERROOT */

/* Define to 1 if you have the /dev/fd filesystem */
#define HAVE_DEV_FD 1

/* Define if your system's struct utmp has a member named ut_host.  */
#define HAVE_UT_HOST 1

/* Define if you have the <utmpx.h> header file.  */
#define HAVE_UTMPX_H 1

/* Define to be a string corresponding to the host type */
#define HOSTTYPE "sco3.2v5.0.0"

/* Define to be the machine type (microprocessor class or machine model) */
#define MACHTYPE "i486"

/* Define to be the name of the operating system */
#define OSTYPE "sco3.2v5.0.0"

/* Define to 1 if ANSI function prototypes are usable.  */
#define PROTOTYPES 1

/* Define to be location of utmp file.  This value is only used if UTMP_FILE, *
 * UTMPX_FILE, or _PATH_UTMP are not defined in an include file.              */
#define UTMP_FILE_CONFIG "/etc/utmp"

/* Define to be a string corresponding the vendor of the machine */
#define VENDOR "unknown"

/* Define if your system defines `struct winsize' in sys/ptem.h.  */
#define WINSIZE_IN_PTEM 1

/* Define  to be location of wtmp file.  This value is only use if WTMP_FILE, *
 * WTMPX_FILE, or _PATH_WTMP are not defined in an include file.              */
#define WTMP_FILE_CONFIG "/etc/wtmp"

/* Define to 1 if you want to use zsh's own memory allocation routines */
/* #undef ZSH_MEM */

/* Define to 1 if you want to debug zsh memory allocation routines */
/* #undef ZSH_MEM_DEBUG */

/* Define to 1 if you want to turn on warnings of memory allocation errors */
/* #undef ZSH_MEM_WARNING */

/* Define to 1 if you want to turn on memory checking for free() */
/* #undef ZSH_SECURE_FREE */

/* Define to 1 if you want to get debugging information on internal *
 * hash tables.  This turns on the `hashinfo' builtin.              */
/* #undef ZSH_HASH_DEBUG */

/* Define to 1 if your termcap library has the ospeed variable */
#define HAVE_OSPEED 1
/* Define to 1 if you have ospeed, but it is not defined in termcap.h */
#define MUST_DEFINE_OSPEED 1

/* Define to 1 if you use POSIX style signal handling */
#define POSIX_SIGNALS 1

/* Define to 1 if you use BSD style signal handling (and can block signals) */
/* #undef BSD_SIGNALS */

/* Define to 1 if you use SYS style signal handling (and can block signals) */
/* #undef SYSV_SIGNALS */

/* Define to 1 if you have no signal blocking at all (bummer) */
/* #undef NO_SIGNAL_BLOCKING */

/* Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define */
/* #undef sigset_t */

/* Define if your system's typeahead disappears from the shell editor. */
/* #undef CLOBBERS_TYPEAHEAD */

/* The number of bytes in a long.  */
#define SIZEOF_LONG 4

/* Define if you have the difftime function.  */
#define HAVE_DIFFTIME 1

/* Define if you have the getdomainname function.  */
/* #undef HAVE_GETDOMAINNAME */

/* Define if you have the gethostname function.  */
/* #undef HAVE_GETHOSTNAME */

/* Define if you have the getlogin function.  */
#define HAVE_GETLOGIN 1

/* Define if you have the getrlimit function.  */
#define HAVE_GETRLIMIT 1

/* Define if you have the gettimeofday function.  */
#define HAVE_GETTIMEOFDAY 1

/* Define if you have the killpg function.  */
#define HAVE_KILLPG 1

/* Define if you have the lstat function.  */
#define HAVE_LSTAT 1

/* Define if you have the mkfifo function.  */
#define HAVE_MKFIFO 1

/* Define if you have the select function.  */
#define HAVE_SELECT 1

/* Define if you have the seteuid function.  */
#define HAVE_SETEUID 1

/* Define if you have the setpgid function.  */
#define HAVE_SETPGID 1

/* Define if you have the setresuid function.  */
/* #undef HAVE_SETRESUID */

/* Define if you have the setreuid function.  */
#define HAVE_SETREUID 1

/* Define if you have the setuid function.  */
#define HAVE_SETUID 1

/* Define if you have the sigaction function.  */
#define HAVE_SIGACTION 1

/* Define if you have the sigblock function.  */
/* #undef HAVE_SIGBLOCK */

/* Define if you have the sighold function.  */
#define HAVE_SIGHOLD 1

/* Define if you have the sigprocmask function.  */
#define HAVE_SIGPROCMASK 1

/* Define if you have the sigrelse function.  */
#define HAVE_SIGRELSE 1

/* Define if you have the sigsetmask function.  */
/* #undef HAVE_SIGSETMASK */

/* Define if you have the strerror function.  */
#define HAVE_STRERROR 1

/* Define if you have the strftime function.  */
#define HAVE_STRFTIME 1

/* Define if you have the strstr function.  */
#define HAVE_STRSTR 1

/* Define if you have the tcgetattr function.  */
#define HAVE_TCGETATTR 1

/* Define if you have the tcsetpgrp function.  */
#define HAVE_TCSETPGRP 1

/* Define if you have the wait3 function.  */
#define HAVE_WAIT3 1

/* Define if you have the waitpid function.  */
#define HAVE_WAITPID 1

/* Define if you have the <dirent.h> header file.  */
#define HAVE_DIRENT_H 1

/* Define if you have the <errno.h> header file.  */
#define HAVE_ERRNO_H 1

/* Define if you have the <fcntl.h> header file.  */
#define HAVE_FCNTL_H 1

/* Define if you have the <libc.h> header file.  */
/* #undef HAVE_LIBC_H */

/* Define if you have the <limits.h> header file.  */
#define HAVE_LIMITS_H 1

/* Define if you have the <locale.h> header file.  */
#define HAVE_LOCALE_H 1

/* Define if you have the <memory.h> header file.  */
#define HAVE_MEMORY_H 1

/* Define if you have the <ndir.h> header file.  */
/* #undef HAVE_NDIR_H */

/* Define if you have the <stdlib.h> header file.  */
#define HAVE_STDLIB_H 1

/* Define if you have the <string.h> header file.  */
#define HAVE_STRING_H 1

/* Define if you have the <sys/dir.h> header file.  */
/* #undef HAVE_SYS_DIR_H */

/* Define if you have the <sys/filio.h> header file.  */
/* #undef HAVE_SYS_FILIO_H */

/* Define if you have the <sys/ndir.h> header file.  */
/* #undef HAVE_SYS_NDIR_H */

/* Define if you have the <sys/param.h> header file.  */
#define HAVE_SYS_PARAM_H 1

/* Define if you have the <sys/resource.h> header file.  */
#define HAVE_SYS_RESOURCE_H 1

/* Define if you have the <sys/select.h> header file.  */
#define HAVE_SYS_SELECT_H 1

/* Define if you have the <sys/time.h> header file.  */
#define HAVE_SYS_TIME_H 1

/* Define if you have the <sys/times.h> header file.  */
#define HAVE_SYS_TIMES_H 1

/* Define if you have the <sys/utsname.h> header file.  */
#define HAVE_SYS_UTSNAME_H 1

/* Define if you have the <termcap.h> header file.  */
/* #undef HAVE_TERMCAP_H */

/* Define if you have the <termio.h> header file.  */
#define HAVE_TERMIO_H 1

/* Define if you have the <termios.h> header file.  */
#define HAVE_TERMIOS_H 1

/* Define if you have the <unistd.h> header file.  */
#define HAVE_UNISTD_H 1

/* Define if you have the nsl library (-lnsl).  */
/* #undef HAVE_LIBNSL */