Re: massive time drift. NTP help required

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Also, i now see that my dmesg output is FULL of this:

/dev/vmmon[27928]: host clock rate change request 1509 -> 1512
/dev/vmmon[27928]: host clock rate change request 1512 -> 1515
/dev/vmmon[27928]: host clock rate change request 1515 -> 1535
/dev/vmmon[27928]: host clock rate change request 1535 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 1479
/dev/vmmon[27928]: host clock rate change request 1479 -> 1514
/dev/vmmon[27928]: host clock rate change request 1514 -> 1536
/dev/vmmon[27928]: host clock rate change request 1536 -> 1545
/dev/vmmon[27928]: host clock rate change request 1545 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 1529
/dev/vmmon[27928]: host clock rate change request 1529 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 1263
/dev/vmmon[27928]: host clock rate change request 1263 -> 1320
/dev/vmmon[27928]: host clock rate change request 1320 -> 1505
/dev/vmmon[27928]: host clock rate change request 1505 -> 1530
/dev/vmmon[27928]: host clock rate change request 1530 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 503
/dev/vmmon[27928]: host clock rate change request 503 -> 807
/dev/vmmon[27928]: host clock rate change request 807 -> 1248
/dev/vmmon[27928]: host clock rate change request 1248 -> 1476
/dev/vmmon[27928]: host clock rate change request 1476 -> 1484
/dev/vmmon[27928]: host clock rate change request 1484 -> 1491
/dev/vmmon[27928]: host clock rate change request 1491 -> 1517
/dev/vmmon[27928]: host clock rate change request 1517 -> 1532
/dev/vmmon[27928]: host clock rate change request 1532 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 1422
/dev/vmmon[27928]: host clock rate change request 1422 -> 1535
/dev/vmmon[27928]: host clock rate change request 1535 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 6
/dev/vmmon[27928]: host clock rate change request 6 -> 342
/dev/vmmon[27928]: host clock rate change request 342 -> 1337
/dev/vmmon[27928]: host clock rate change request 1337 -> 1428
/dev/vmmon[27928]: host clock rate change request 1428 -> 1458
/dev/vmmon[27928]: host clock rate change request 1458 -> 1533
/dev/vmmon[27928]: host clock rate change request 1533 -> 1539
/dev/vmmon[27928]: host clock rate change request 1539 -> 0
/dev/vmmon[27928]: host clock rate change request 0 -> 1038
/dev/vmmon[27928]: host clock rate change request 1038 -> 1416
/dev/vmmon[27928]: host clock rate change request 1416 -> 1524


On 6/1/07, Mark Hutchinson <markhsa@xxxxxxxxx> wrote:
I am also seeing some of this in my messages.  Is this what you had?  What does it mean?
warning: many lost ticks.
warning: many lost ticks.

On 6/1/07, Henry Ritzlmayr <fedora-list@xxxxxx> wrote:
Am Freitag, den 01.06.2007, 06:26 -0600 schrieb Mark Hutchinson:

<snip>

>
> Anyone have any thoughts on what could be up with this?
> Other things I can try.  I am not sure why my clock is off this much.
> All brand new hardware as well.

I had the same problem with an ASUS "P5B-VM DO". Time drift was exactly
1 second per minute or as you describe it 1 minute per hour.

I also got lost ticks warnings in /var/log/messages.

I got rid of the time drift problem by enabling AMT within the BIOS and
disabling the LAN Controller! Obviously even AMT is disabled (by
default) there is still something hogging the interrupts which caused
the time drift on my system. After disabling the LAN Controller, AMT can
be disabled for good now.

I had the problem with any FC6 kernel. FC7 kernels where not affected.

Henry





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