/proc/sys/kernel/hung_task_timeout_secs error

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http://unix.stackexchange.com – I am building a CentOS 6.2 webserver on a Hyper-V Cluster and have hit a major issue. The current setup is this: Operating System: CentOS 6.2. Minimal Server Install Installed software includes: Hyper-V Linux integration Drivers Webmin Apache 2 MySQL 5.* php 5 with APC php accelerator webserver is running Moodle (if it making any difference mentioning it) The last thing I installed was the "Hyper-V Linux integration Drivers" after which ... a few days later the entire OS locked up with "task blocked for more than 120 seconds" error right down the console. I now find this error rears it's (HowTos)