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[error] (28)No space left on device: mod_python: Failed to create global mutex 0 of 4 (/tmp/mpmtx175910).
Configuration Failed


This is due to your system not having anough sysV semaphores available and typically affects busy servers.

To correct the issue:

Run as root from command line via SSH: echo "kernel.sem = 512 32000 100 512" >> /etc/sysctl.conf; sysctl -p; service httpd start

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