Software :: HTTPD Service Start Up With Error

I am using fedora9 server I installed & configured httpd ,mysqld & heartbeat service its well and running but every 10 to 15 days httpd service is stoped when I tried to start the service

I am getting this below error:
#sudo /sbin/service httpd start
Starting httpd: [Mon May 09 09:03:07 2011] [crit] (17)File exists: Failed to create shared memory segment for backend 'XXGLOBAL'
I checked httpd pid
#ps -ef |grep httpd
526 7553 7194 0 09:06 pts/0 00:00:00 grep httpd

I googled and run below the commands:
#ipcs -s | grep apache
I didn't get any out put:
#ipcs -s | grep apacheipcs -s | grep apache | perl -e 'while () { @a=split(/s+/); print `ipcrm sem $a[1]`}'
deprecated usage: ipcrm {shm | msg | sem} id ...
usage: ipcrm [ [-q msqid] [-m shmid] [-s semid]
[-Q msgkey] [-M shmkey] [-S semkey] ... ]
deprecated usage: ipcrm {shm | msg | sem} id ...
usage: ipcrm [ [-q msqid] [-m shmid] [-s semid] .....

I got the out put below like I wait 5 to 10 min but the proses will going on I killed the process I tried to start the service but I got same error. When I restarted my O/S the problem is rectified but every 10 to 15 days same problem I am getting.

I checked http error_log file:
# tail -f /var/log/httpd/error_log
[Mon May 09 09:46:01 2011] [crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock
Configuration Failed
[Mon May 09 09:48:01 2011] [crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock
Configuration Failed
[Mon May 09 09:50:01 2011] [crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock
Configuration Failed
[Mon May 09 09:52:01 2011] [crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock
Configuration Failed
[Mon May 09 09:54:01 2011] [crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock
Configuration Failed