Re: [PATCH 2/3] powermac: proper time of day after resume

["Michel Dänzer" <michel@tungstengraphics.com>]

On Thu, 2007-01-25 at 19:06 +1100, Benjamin Herrenschmidt wrote:
> On Thu, 2007-01-25 at 08:39 +0100, Michel Dänzer wrote:
> > On Thu, 2007-01-25 at 08:44 +1100, Benjamin Herrenschmidt wrote:
> > > > > The best solution may require informing the user space ntp code of
> > > > > such events. This requires very likely modifications to ntp itself
> > > > > (I may be wrong, I've not looked at NTP code for 5 years or so).
> > > > 
> > > > Doesn't the kernel send signals to init on suspend/resume
> > > > events, just like with power fail events?  You can hook on
> > > > that.
> > > 
> > > I don't think it does... at least not on powerbooks.
> > 
> > It could be handled by scripts invoked from pbbuttonsd or pmud on wakeup
> > though, couldn't it? I thought there used to be one for that
> > in /etc/apm/, but I can't find it now...
> 
> Well, I'm not sure I've fully followed how these things changed over the
> last couple of years but yes, there used to be one called by pmud and
> possibly pbbuttonsd too in /etc/power/pwrctl but distro I think -also-
> hook that top APM stuffs among others.

FWIW, it seems to be handled indirectly here
via /etc/network/if-up.d/ntp, which is invoked whenever a network
interface goes up, which happens automatically on wakeup with
network-manager.


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer