Pure-ftpd floods /var/log/messages

Also you can use log-rotate for the same, see following example

# Logrotate file for trace

/source/path/trace_*.log {
    missingok
    create
    compress
    rotate 1
    lastaction
        # After compressing logs, move to other location 
        Log_dir="/target/dir/old_log_$(date +%F)/$(date +%H_%S)/"
        [[ ! -d "${Log_dir}" ]] && /bin/mkdir -p "${Log_dir}"
        /bin/mv /source/path/*.gz "${Log_dir}"
    endscript
}

save above file, let say /etc/logrotate_trace.conf then simply set cron job for every hour

00 * * * * /usr/sbin/logrotate  -f /etc/logrotate_trace.conf

for testing you can run it from command line as

/usr/sbin/logrotate  -f /etc/logrotate_trace.conf

The relevant aspects are the kernel versions and these lines from early in the boot process:

kernel: Fast TSC calibration using PIT
...
kernel: Calibrating delay loop (skipped), value calculated using timer frequency..
...
kernel: Switching to clocksource tsc

YMMV and you may not be using TSC or PIT

AFAIK this is a bug that's caused by the clock of at least one of your CPUs being out of sync, in your case probably running too fast.

It should be easy to confirm by running this:

for cpu in {0..8} ; do taskset -c $cpu date ; done

which will run date against each cpu (assuming you have up to 8 cores/threads). If my guess is correct then one of your CPUs will consistently have the wrong time.

If that's the case then you should first try upgrading the kernel and if that doesn't work, fiddle with the clocksource boot parameter (assuming it's x86-64):

clocksource=    Override the default clocksource
                Format: <string>
                Override the default clocksource and use the clocksource
                with the name specified.
                Some clocksource names to choose from, depending on
                the platform:
                [all] jiffies (this is the base, fallback clocksource)
                [ACPI] acpi_pm
                ...
                [X86-64] hpet,tsc

See also the output of this:

cat /sys/devices/system/clocksource/clocksource*/available_clocksource