NTP time synchronization issue on SUSE Linux Enterprise Server 10 Service Pack 4 running on VMware
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# cat /var/lib/ntp/drift/ntp.drift -500.000and several frequency errors in the ntp log file:
# cat /var/log/ntp [...] 9 Jul 11:06:37 ntpd: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:07:43 ntpd: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:08:46 ntpd: frequency error -512 PPM exceeds tolerance 500 PPM 9 Jul 11:09:49 ntpd: frequency error -512 PPM exceeds tolerance 500 PPM [...]
The issue has been verified on systems running kernel version 220.127.116.11-0.97.1 on VMware.
Please update to kernel 18.104.22.168-0.99.1 or later.
Disable the Time Stamp Counter using the kernel parameter "notsc". In order to do this, add "notsc" to the kernel line in the file "/boot/grub/menu.lst". An example below:
kernel /boot/vmlinuz-22.214.171.124-0.97.1-default root=/dev/sda2 vga=0x314 resume=/dev/sda1 splash=silent showopts notsc
Then reboot the system and verify if the issue is solved.
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- Document ID:7010716
- Creation Date: 31-Aug-2012
- Modified Date:16-Mar-2021
- SUSE Linux Enterprise Server
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