Apache - No space left on device: AH00023: Couldn't create the authdigest-opaque mutex

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No space left on device: AH00023: Couldn't create the authdigest-opaque mutex

Ошибка вида:

[Fri Jun 29 17:37:24.090589 2018] [core:emerg] [pid 30695](28)No space left on device: AH00023: Couldn't create the authdigest-opaque mutex
[Fri Jun 29 17:37:24.090598 2018] [auth_digest:error] [pid 30695] (28)No space left on device: AH01760: failed to create lock (opaque_lock) - all nonce-count checking, one-time nonces, and MD5-sess algorithm disabled
[Fri Jun 29 17:37:24.090639 2018] [:emerg] [pid 30695] AH00020: Configuration Failed, exiting

Решение -чистим семафоры:

# for i in `ipcs -s | awk '/apache/ {print $2}'`; do (ipcrm -s $i); done
# systemctl restart httpd

# vi /etc/sysctl.conf
kernel.msgmni = 1024
kernel.sem = 250 256000 32 1024

#  sysctl -p
kernel.msgmni = 1024
kernel.sem = 250 256000 32 1024