[CentOS] Slow clock on CentOS 4.4 in a VMware VM

[Scott McClanahan]

NTP is not supposed to be running on your vm's.  Instead, you leverage
vmware tools and use the vmware-toolbox to enable time synchronization
between the guest vm and the host.  Also clock=pit is the recommended
boot parameter.

chkconfig ntpd off

On Wed, 2007-02-07 at 09:03 -0500, Alfred von Campe wrote:
> I'm running a CentOS 4.4 VM on a Windows XP host with VMware Server,  
> and have the problem that my clock runs too slow (it happens in  
> VMware Workstation as well).  It loses between 30 and 45 seconds  
> every minute!  This is a known problem and can be fixed by adding  
> "nosmp noapic nolapic" to the boot command according to VMware tech  
> note ID 1420.  However, despite adding these options as well as some  
> others (acpi=off pci=noacpi clock=pit) and turning off a bunch of  
> daemons (cpuspeed, irqbalance, etc.) I still have a slow clock.  Here  
> are the daemons that are still enabled:
> 
> anacron         0:off   1:off   2:on    3:on    4:on    5:on    6:off
> apmd            0:off   1:off   2:on    3:on    4:on    5:on    6:off
> atd             0:off   1:off   2:off   3:on    4:on    5:on    6:off
> autofs          0:off   1:off   2:off   3:on    4:on    5:on    6:off
> crond           0:off   1:off   2:on    3:on    4:on    5:on    6:off
> cups            0:off   1:off   2:on    3:on    4:on    5:on    6:off
> cups-config-daemon      0:off   1:off   2:off   3:on    4:on     
> 5:on    6:off
> denyhosts       0:off   1:off   2:on    3:on    4:on    5:on    6:off
> gpm             0:off   1:off   2:on    3:on    4:on    5:on    6:off
> haldaemon       0:off   1:off   2:off   3:on    4:on    5:on    6:off
> iptables        0:off   1:off   2:on    3:on    4:on    5:on    6:off
> kudzu           0:off   1:off   2:off   3:on    4:on    5:on    6:off
> mdmonitor       0:off   1:off   2:on    3:on    4:on    5:on    6:off
> messagebus      0:off   1:off   2:off   3:on    4:on    5:on    6:off
> microcode_ctl   0:off   1:off   2:on    3:on    4:on    5:on    6:off
> netfs           0:off   1:off   2:off   3:on    4:on    5:on    6:off
> network         0:off   1:off   2:on    3:on    4:on    5:on    6:off
> ntpd            0:off   1:off   2:off   3:on    4:off   5:on    6:off
> portmap         0:off   1:off   2:on    3:on    4:on    5:on    6:off
> readahead       0:off   1:off   2:off   3:off   4:off   5:on    6:off
> readahead_early 0:off   1:off   2:off   3:off   4:off   5:on    6:off
> sendmail        0:off   1:off   2:on    3:on    4:on    5:on    6:off
> sshd            0:off   1:off   2:on    3:on    4:on    5:on    6:off
> syslog          0:off   1:off   2:on    3:on    4:on    5:on    6:off
> vmware-tools    0:off   1:off   2:on    3:on    4:off   5:on    6:off
> winbind         0:off   1:off   2:off   3:off   4:on    5:off   6:off
> xfs             0:off   1:off   2:on    3:on    4:on    5:on    6:off
> xinetd          0:off   1:off   2:off   3:on    4:on    5:on    6:off
> 
> Has anyone else come across this problem and if so, did you find a  
> way to fix it?  This is the last issue that is preventing me from  
> distributing this VM to users.
> 
> Thanks,
> Alfred
> 
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