Re: [CentOS] CONFIG_RTC_SYSTOHC not set for CentOS kernels

2018-11-15 Thread Akemi Yagi
On Thu, Nov 15, 2018 at 9:31 AM Anand Buddhdev  wrote:
>
> On 15/11/2018 18:09, Phil Perry wrote:
>
> Hi Phil,
>
> >> Does anyone know why this option is not enabled for CentOS kernels?
> >
> > Because it is not enabled on RHEL kernels.
>
> 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
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Re: [CentOS] CONFIG_RTC_SYSTOHC not set for CentOS kernels

2018-11-15 Thread Anand Buddhdev
On 15/11/2018 18:09, Phil Perry wrote:

Hi Phil,

>> Does anyone know why this option is not enabled for CentOS kernels?
> 
> Because it is not enabled on RHEL kernels.

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
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Re: [CentOS] CONFIG_RTC_SYSTOHC not set for CentOS kernels

2018-11-15 Thread Phil Perry

On 15/11/2018 16:45, Anand Buddhdev wrote:

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?



Because it is not enabled on RHEL kernels.


Regards,
Anand


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[CentOS] CONFIG_RTC_SYSTOHC not set for CentOS kernels

2018-11-15 Thread Anand Buddhdev
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
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