On Friday 28 July 2006 23:32, Gilles Chanteperdrix wrote: > Julien Heyman wrote: > > > Losing too many ticks! > > > TSC cannot be used as a timesource. ~ > > > Possible reasons for this are: > > > ~ You're running with Speedstep, > > > ~ You don't have DMA enabled for your hard disk (see hdparm), > > > ~ Incorrect TSC synchronization on an SMP system (see dmesg). > > > Falling back to a sane timesource now. > > > > > > Do you see such message in kernel logs ? > > > > No, I don't get any of these. > > > > > If this is the issue you are having, then you may try passing > > > idle=poll on kernel boot line. Or recompile the kernel selecting a > > > processor that has no tsc (for example 486), xenomai will then use the > > > 8254 counter to emulate the tsc. > > > > I tried to rebuild with CPU=486, but it gives the same result. > > Did you try booting with the idle=poll option ? Also, could you try > re-enabling ACPI, except the "processor" module ?
I tried both, without success. My quest goes on... :/ By the way, there is something I don't understand : I get the following error message at boot time : Incompatible timer mode found (aperiodic, need periodic) VxWorks skin init failed, code -16 whereas I do have periodic timer enabled, I think : [EMAIL PROTECTED]:/usr/src/linux-2.6.17.4$ cat .config | grep PERIO CONFIG_XENO_OPT_TIMING_PERIODIC=y CONFIG_XENO_OPT_TIMING_PERIOD=0 (or am I checking the wrong setting ? Also, it "0" a legitimate value for the timing period ?) Julien Heyman _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
