Ubuntu
linux package

  1. Bug #355155
  2. Comment #93

Comment 93 for bug 355155

Revision history for this message
Nicolas Piguet (npiguet) wrote : Re: Computer hard locks randomly with ubuntu jaunty

I also have this problem. The last kernel log message before every crash is always "hpet increasing", and I also have the "clocksource tsc unstable". In practice, the freeze seems to happen when the computer in under some kind of load. For me, it really hates it when there is a lot of wireless activity. For example running p2p applications tends to lead to a freeze faster than just browsing the net.

--- Extract of Kern.log.0 ---
May 16 10:18:45 lotp-fsa kernel: [ 0.004000] hpet clockevent registered
May 16 10:18:45 lotp-fsa kernel: [ 0.608076] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
May 16 10:18:45 lotp-fsa kernel: [ 0.608080] hpet0: 3 comparators, 64-bit 14.318180 MHz counter
May 16 10:18:45 lotp-fsa kernel: [ 5.233125] rtc0: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
May 16 10:18:45 lotp-fsa kernel: [ 14.001038] Clocksource tsc unstable (delta = -197096291 ns)
May 16 10:37:35 lotp-fsa kernel: [ 1146.141055] CE: hpet increasing min_delta_ns to 15000 nsec
May 16 10:39:04 lotp-fsa kernel: [ 1235.277058] CE: hpet increasing min_delta_ns to 22500 nsec