[mythtv-users] MythBackend Suddenly swamping CPU on system

[Jan Ceuleers]

On 07/01/2012 03:08 AM, Ben Kamen wrote:
> Today it started swamping the CPU to 100% (AMD Phenom X4 640)...

Seems to be caused by the leap second insertion which happened overnight
(UTC).

No reboot necessary if you do the following:

$ date -s "`date`"

In other words: set the date to today's date.

There is conjecture on the Linux kernel mailing list that this is caused
by a missing call to clock_was_set(). If confirmed, this is a regression
caused by commit:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=746976a301ac9c9aa10d7d42454f8d6cdad8ff2b

I repeat: still conjecture at this point, but the above workaround did
work for me.

HTH, Jan