Leap second bug in Linux wastes electricity
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Power consumption at Hetzner Online's data centres jumped by "about a megawatt" in the night from 30 June to 1 July due to a kernel bug which resulted in many Linux systems reaching 100% processor usage in dealing with the leap second added at midnight. The problem is described in an email sent by the web hosting company to customers, asking them to check their systems' CPU usage and, where necessary, to restart their systems in order to restore processor usage to normal levels.
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