一个apache问题,无法重启,提示:apachectl: line 78: 5160 段错误 $HTTPD -k $ARGV

我在 /etc/rc.d/rc.local 中加入一条

/usr/local/apache2/bin/apachectl start

在我重新启动机器，apache都是可以正常运行，但我想在命令行用命令重新启动关闭等都不行。如：

[root@localhost mysc]# /usr/local/apache2/bin/apachectl stop
/usr/local/apache2/bin/apachectl: line 78:  5153 段错误                  $HTTPD -k $ARGV

[root@localhost mysc]# /usr/local/apache2/bin/apachectl restart
/usr/local/apache2/bin/apachectl: line 78:  5160 段错误                  $HTTPD -k $ARGV

我查了apache的日a志，没看什么问题来：

[root@localhost lsc]# cat /usr/local/apache2/logs/error_log
[Wed Dec 03 13:42:02 2008] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Wed Dec 03 13:42:03 2008] [warn] No JkShmFile defined in httpd.conf. Using default /usr/local/apache2/logs/jk-runtime-status
[Wed Dec 03 13:42:03 2008] [notice] Digest: generating secret for digest authentication ...
[Wed Dec 03 13:42:03 2008] [notice] Digest: done
[Wed Dec 03 13:42:04 2008] [warn] No JkShmFile defined in httpd.conf. Using default /usr/local/apache2/logs/jk-runtime-status
[Wed Dec 03 13:42:04 2008] [notice] Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8h DAV/2 SVN/1.5.0 PHP/5.2.6 mod_jk/1.2.26 configured -- resuming normal operations


请教大家，这是什么情况？ 怎么解决呢？ 谢谢！