Apache2 – No space left on device
I had problems restarting Apache2… After researching a lot I found that it was due there were myriads of semaphore-arrays left, owned by my www-data user.
The following appears to be some of the errors Apache writes in the log.
-
[emerg] (28)No space left on device: Couldn’t create accept lock
or
-
[crit] (28)No space left on device: mod_rewrite: could not create rewrite_log_lock Configuration Failed
or
-
[error] (28)No space left on device: Cannot create SSLMutex
After stopping Apache I found the semaphores with the following command
ipcs -s | grep www-data
Removing this semaphores immediately solved the problem.
ipcs -s | grep www-data | perl -e ‘while (<STDIN>) { @a=split(/\s+/); print `ipcrm sem $a[1]`}’