Comment 16 for bug 352373

Same issue here on AMD64 with Nvidia 180 drivers, I made a clean install from daily build and installed a couple of applications (samba, hellanzb, screen, irssi, centerim ntp and ntpdate). The freezes happen from 5 min to 30 min after rebooting. I've looked through the log files and the last lines before boots are related to ntpd, I don't know if this helps at all but I'll just paste a couple of lines before the freezes from syslog.

Apr 9 03:02:32 ubuntu kernel: [ 94.048020] Clocksource tsc unstable (delta = -65408709 ns)
Apr 9 04:23:13 ubuntu ntpd[3412]: synchronized to 194.137.39.67, stratum 2
Apr 9 04:23:13 ubuntu ntpd[3412]: time reset +0.267020 s
Apr 9 04:23:13 ubuntu ntpd[3412]: kernel time sync status change 0001