CONFIG_RTC_SYSTOHC Not Set For CentOS Kernels
Hi folks,
RHEL 7 documentation says that if either ntp or chrony is running on a system, then it will enable the kernel feature to sync system time to the hardware clock every 11 minutes. This needs the CONFIG_RTC_SYSTOHC
option to be set.
However, it looks like this option is not set for CentOS kernels:
# fgrep CONFIG_RTC_SYSTOHC /boot/config-3.10.0-862.14.4.el7.x86_64
# CONFIG_RTC_SYSTOHC is not set
This explains why on some of our servers, the hardware clock is out of sync with the system time.
Does anyone know why this option is not enabled for CentOS kernels?
Regards, Anand
3 thoughts on - CONFIG_RTC_SYSTOHC Not Set For CentOS Kernels
Because it is not enabled on RHEL kernels.
Hi Phil,
Heh, okay, that’s an easy explanation.
I’ll try to open a bug report in RedHat’s bugzilla, and see if they give me any attention.
Regards, Anand
In addition to that, you have an option to ask CentOS to have it enabled in the CentOSplus kernel.
Akemi