Very bad Apache problem.

[Dave Walker]

So I am running Apache with a main site, and 5 virtual hosts.  Simple.  
For some reason, and I can not tell why after about 3-4 days of Apache 
being up it crashes.  The server get's a handful of load but nothing to 
the capability of crashing Apache.  When it crashes apache2 is not 
running, there are no processes related to apache.  When I attempt to 
restart it I get:

Linux:/etc/apache2# /etc/init.d/apache2 restart
Forcing reload of web server: Apache2 ... no pidfile found! not 
running?(98)Address already in use: make_sock: could not bind to address 
129.21.xx.xxx:80
no listening sockets available, shutting down
Unable to open logs
Linux:/etc/apache2#

If I try and telnet to the host on port 80, telnet hangs, crtl-c or 
ctrl-z do nothing.  The only way I know how to fix this is a reboot.  
And I can't deal with rebooting a soon-to-be-production server this 
often for what seems to be a stupid problem.  Does anyone else have this 
problem, or know how I can fix it.

--
Dave