Re: [chrony-dev] /usr/sbin/chronyd: Starting with kernel v3.0, chronyd will refuse to start

[Bill Unruh <unruh@xxxxxxxxxxxxxx>]

On Mon, 6 Jun 2011, Miroslav Lichvar wrote:

> On Sun, Jun 05, 2011 at 11:58:42PM -0700, Christian Kujau wrote:
> > Debian users are already seeing[0] this:
> >
> > sys_linux.c:742:(get_version_specific_details)[02-12:36:37] Linux kernel major=3 minor=0 patch=0
> > sys_linux.c:823:(get_version_specific_details)[02-12:36:37] Fatal error :Kernel's major version not supported yet, sorry
>
> Thanks for the report. It should be now fixed in git.
>
> > @@ -997,6 +997,7 @@ get_version_specific_details(void)
> >        }
> >        break;
> >      case 2:
> > +    case 3:
> >        switch (minor) {
> >          case 0:
> >            if (patch < 32) {
>
> This would configure chrony as if it was kernel 2.0, probably not what
> we want.
>
> BTW, do we really need to support ancient kernels like 1.2? Dropping
> support for kernels before 2.2 would simplify the code nicely, what do
> you think?

I was surprized 7 years ago to see 1.2 support in chrony. It is definitely
there as legacy code. Not sure if it is best to let sleeping dogs lie ( just
in case someone somewhere wants to use it), or clean it up. Anyway, I would
mildly vote to get rid of that ancient support.

> Also, does anyone know how to detect if kernel is running in the
> tickless mode?

--
William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
UBC, Vancouver,BC  |   Program in Cosmology |     unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/

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