Erorr: "Marking TSC unstable due to: check_tsc_sync_source failed"

[Konstantin Svist]

After updating my FC6 from 2.6.20-1.2952 to 2.6.22.9-61, it seems I 
started getting some error messages about TSC being disabled.

/var/log/messages had this with the old kernel:
Oct 26 21:52:02 localhost kernel: Total of 2 processors activated 
(7317.20 BogoMIPS).
Oct 26 21:52:02 localhost kernel: ENABLING IO-APIC IRQs
Oct 26 21:52:02 localhost kernel: ..TIMER: vector=0x31 apic1=0 pin1=2 
apic2=-1 pin2=-1
Oct 26 21:52:02 localhost kernel: checking TSC synchronization across 2 
CPUs:
Oct 26 21:52:02 localhost kernel: CPU#0 had -1014760 usecs TSC skew, 
fixed it up.
Oct 26 21:52:02 localhost kernel: CPU#1 had 1014760 usecs TSC skew, 
fixed it up.
Oct 26 21:52:02 localhost kernel: Brought up 2 CPUs
Oct 26 21:52:02 localhost kernel: migration_cost=38
Oct 26 21:52:02 localhost kernel: NET: Registered protocol family 16

the new one says:
Nov  4 19:24:28 localhost kernel: Total of 2 processors activated 
(7318.20 BogoMIPS).
Nov  4 19:24:28 localhost kernel: ENABLING IO-APIC IRQs
Nov  4 19:24:28 localhost kernel: ..TIMER: vector=0x31 apic1=0 pin1=2 
apic2=-1 pin2=-1
Nov  4 19:24:28 localhost kernel: checking TSC synchronization [CPU#0 -> 
CPU#1]:
Nov  4 19:24:28 localhost kernel: Measured 4105718628 cycles TSC warp 
between CPUs, turning off TSC clock.
Nov  4 19:24:28 localhost kernel: Marking TSC unstable due to: 
check_tsc_sync_source failed.
Nov  4 19:24:28 localhost kernel: Brought up 2 CPUs
Nov  4 19:24:28 localhost kernel: Time: 19:23:47  Date: 10/04/107
Nov  4 19:24:28 localhost kernel: NET: Registered protocol family 16


Is this normal? Should I do anything about it?

Thanks