Hi I'm running FreeBSD 7.1 amd64 and the following timecounters show up
dmesg | grep Timecounter Timecounter "i8254" frequency 1193182 Hz quality 0 Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 Timecounters tick every 1.000 msec By default the system picks ACPI-fast but that was causing a lot of fll pll status flips. Like once an hour it would post into the logs with a flip. So I changed the kern.timecounter.hardware to i8254 and rebooted. Problem is that its still status flipping and I'd really like to figure out why and how to cure it. Here's a contiguous portion of log Mar 30 08:36:08 cayman ntpd[704]: kernel time sync status change 2001 Mar 30 13:24:15 cayman ntpd[704]: kernel time sync status change 6001 Mar 30 14:15:30 cayman ntpd[704]: kernel time sync status change 2001 Mar 30 14:49:39 cayman ntpd[704]: kernel time sync status change 6001 Mar 30 15:57:55 cayman ntpd[704]: kernel time sync status change 2001 Mar 30 16:32:04 cayman ntpd[704]: kernel time sync status change 6001 Mar 30 16:49:08 cayman ntpd[704]: kernel time sync status change 2001 Mar 30 17:57:25 cayman ntpd[704]: kernel time sync status change 6001 Mar 30 18:14:28 cayman ntpd[704]: kernel time sync status change 2001 Mar 30 19:22:43 cayman ntpd[704]: kernel time sync status change 6001 The version of ntpd shows up as Mar 30 08:31:03 cayman ntpd[703]: ntpd 4.2.4p5-a Thu Jan 15 20:18:58 UTC 2009 (1) This is supposed to be a dedicated box in a temperature controlled data center and the box is completely unstressed - load averages are all zeros. I've included the output from sysctl kern.timecounter just incase its needed Thanks for any help! Garrett kern.timecounter.tick: 1 kern.timecounter.choice: TSC(-100) ACPI-fast(1000) i8254(0) dummy(-1000000) kern.timecounter.hardware: i8254 kern.timecounter.nsetclock: 3 kern.timecounter.ngetmicrotime: 4414359 kern.timecounter.ngetnanotime: 44109 kern.timecounter.ngetbintime: 0 kern.timecounter.ngetmicrouptime: 2627683 kern.timecounter.ngetnanouptime: 8956 kern.timecounter.ngetbinuptime: 7873 kern.timecounter.nmicrotime: 898243 kern.timecounter.nnanotime: 7932 kern.timecounter.nbintime: 911098 kern.timecounter.nmicrouptime: 6171 kern.timecounter.nnanouptime: 1 kern.timecounter.nbinuptime: 1194598 kern.timecounter.stepwarnings: 0 kern.timecounter.tc.i8254.mask: 65535 kern.timecounter.tc.i8254.counter: 2298 kern.timecounter.tc.i8254.frequency: 1193182 kern.timecounter.tc.i8254.quality: 0 kern.timecounter.tc.ACPI-fast.mask: 16777215 kern.timecounter.tc.ACPI-fast.counter: 12653249 kern.timecounter.tc.ACPI-fast.frequency: 3579545 kern.timecounter.tc.ACPI-fast.quality: 1000 kern.timecounter.tc.TSC.mask: 4294967295 kern.timecounter.tc.TSC.counter: 3711324709 kern.timecounter.tc.TSC.frequency: 2793013030 kern.timecounter.tc.TSC.quality: -100 kern.timecounter.smp_tsc: 0 _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
