In the process of setting up a new site on my server, I set up a MySQL database for it and a new MySQL user, but neglected to perform a 'mysqladmin reload' to process the new user's password.  The call to mysql_pconnect() failed and the page in question did not work, but subsequent calls to the same page produced a segmentation fault in the httpd error log.

The problem did not clear up until I killed the server and restarted it, but now I cannot reproduce it.

Other software details:

[root@fddth03-157-31 panet_demo]# httpd -V
Server version: Apache/1.3.6 (Unix)
Server built:   Mar  7 2000 17:30:02
Server's Module Magic Number: 19990320:0
Server compiled with....
 -D EAPI
 -D BIG_SECURITY_HOLE
 -D HAVE_MMAP
 -D HAVE_SHMGET
 -D USE_SHMGET_SCOREBOARD
 -D USE_MMAP_FILES
 -D USE_FCNTL_SERIALIZED_ACCEPT
 -D HTTPD_ROOT="/etc/httpd"
 -D SUEXEC_BIN="/usr/bin/suexec"
 -D SHARED_CORE_DIR="/usr/lib/apache"
 -D DEFAULT_PIDLOG="/var/run/httpd.pid"
 -D DEFAULT_SCOREBOARD="/var/run/httpd.scoreboard"
 -D DEFAULT_LOCKFILE="/var/run/httpd.lock"
 -D DEFAULT_XFERLOG="/var/log/httpd/access_log"
 -D DEFAULT_ERRORLOG="/var/log/httpd/error_log"
 -D TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"
 -D ACCESS_CONFIG_FILE="conf/access.conf"
 -D RESOURCE_CONFIG_FILE="conf/srm.conf"
Compiled-in modules:
  http_core.c
  mod_mmap_static.c
  mod_env.c
  mod_define.c
  mod_log_config.c
  mod_log_agent.c
  mod_log_referer.c
  mod_mime_magic.c
  mod_mime.c
  mod_negotiation.c
  mod_status.c
  mod_info.c
  mod_include.c
  mod_autoindex.c
  mod_dir.c
  mod_cgi.c
  mod_asis.c
  mod_imap.c
  mod_actions.c
  mod_speling.c
  mod_userdir.c
  mod_proxy.c
  mod_alias.c
  mod_rewrite.c
  mod_access.c
  mod_auth.c
  mod_auth_anon.c
  mod_auth_db.c
  mod_digest.c
  mod_cern_meta.c
  mod_expires.c
  mod_headers.c
  mod_usertrack.c
  mod_example.c
  mod_unique_id.c
  mod_so.c
  mod_setenvif.c
  mod_ssl.c
  mod_perl.c
  mod_auth_pam.c

PHP was configured with the MySQL provided library

MySQL 3.23.33