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Leap seconds & the kernelLeap seconds & the kernelPosted Jul 1, 2012 22:03 UTC (Sun) by alankila (subscriber, #47141)In reply to: Leap seconds & the kernel by theophrastus Parent article: Kernel prepatch 3.5-rc5
Given that wide array of programs were affected, not just java, it was a more general issue. Apparently futexes immediately timeouted after the leap second was applied, and this caused high CPU usage.
The freakish thing was that just restarting the affected program did not fix it. I'm still waiting for the full LWN exposé of this particular issue...
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