Software :: Apache 2.2.x Dying Several Times An Hour?

I manage an Apache 2.2.3 web server. It stops working several times an hour, so I removed the semaphores and restarted it as a workaround, but I dont know what is causing this. Lately i've noticed that the workaround is not working at all.

Code:
0 */1 * * * /usr/bin/ipcs -s | grep apache | perl -e 'while (<STDIN>) { @a=split(/s+/); print `ipcrm sem $a[1]`}'
0 */1 * * * /sbin/service httpd restart 1>/dev/null
Below is what I can see in my error_log file.

What is the mutex message telling me. To be honest, I don't know much about semaphores nor how they work. You can see after the semaphore issue, that Apache is sent the SIGTERM signal. I have seen other posts on this topic, but not explicitly with Linux 2.6.22 and Apache 2.2.3 with a description of the issue and a permanent fix.

Code:
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex
[Fri May 27 22:00:04 2011] [emerg] (43)Identifier removed: couldn't grab the accept mutex

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