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I was AFK for about 24 hours and came back to find gnome-system-monitor saying all four CPU cores on my laptop were running at full throttle. mysqld is taking up more than one full core; when I tried to end the process, it restarted with a new PID. Then there's ksoftirqd/0-3, which apparently has something to do with interrupts, but I can't tell from Google what I'm supposed to do with those four particular processes. They're taking up a quarter or more of my processor cycles. Then there's Chrome, but I can probably handle that on my own -- how do I cool down the other processes giving me problems?

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closed as off topic by Jorge Castro, izx, belacqua, Mitch, RolandiXor Aug 22 '12 at 20:09

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

No answer, same problem. – dbrank0 Jul 2 '12 at 5:56

There is a bug in the kernel that causes a failure because of the "leap second" that happened on June 30.

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Here is a description of the problem and the fix:

To solve the problem, run

date -s "`date`" && touch /tmp/leapsecond_2012_06_30

(Those are backticks inside double-quotes. Backtick ` is the un-shifted version of the ~ key on my keyboard: below F1 and Esc on my keyboard, but above Tab. So not quite all the way to the upper left corner.)

I don't know why the second part (I guess to keep a record of it being executed?) but if Mozilla says to do it, it's probably right.

This source omits the touch part.

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