:: Cannot create SSLMutex

:: Apache error logs

No space left on device: Cannot create SSLMutex Configuration Failed

:: How to fix
+ checking semaphore-arrays left for apache users

 ipcs -a

 ipcs -a | grep daemon

+ removing the semaphores

 ipcs -a | grep daemon | awk ' { print $2 } ' | xargs -n 1 ipcrm -s

+ Change SSLMutex on httpd-ssl.conf

vi httpd-ssl.conf
## change to :
SSLMutex sem

+ Restarting Apache

apachectl stop
apachectl start