On Jul 9 2007 22:54, Pawel Dziepak wrote: > As far as i know Pentium M processors have dynamically changed clock > speed (ofc to save power). That's why kernel notice that TSC is > unstable (it is indeed). On my Athlon 64 I have similar situation, > because CPU frequency is dynamically changed. > I don't think that there is an easy way to fix it (it is not even a > bug), time-stamp counter is not perfect...
Also see http://lkml.org/lkml/2007/5/6/29 The TSC is supposed to tick at the CPU rate (unless it's a constant_tsc, see /proc/cpuinfo flags:), so on frequency change, this ought to happen. The kernel will automatically switch to something else. There's acpi_pm and, IIRC, pit. Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/