Due to this bug, the system time drifts forward noticeably using the latest stable OpenWrt version on the Alix board.
The problem can be fixed setting the system’s clocksource to tsc with the following command:
echo "tsc" > /sys/devices/system/clocksource/clocksource0/current_clocksource
To have the fix survive a reboot, the command can be added to /etc/rc.local: