On Tue, Mar 28, 2000 at 05:22:40PM +0200, Harald Koerfgen wrote:
> > around line 676. This means that only two the years 1998 to 2000 will be
> > recognized for the `Digital DECstation Epoch'. Looks broken to me. I
> > tried to fix it but don't know the secrets of DECstation RTC timekeeping so
> > could a DECstation guru look at it?
> Sad, but true. The DECstation engineers, in their infinite wisdom, decided to
> use the RTC chip as a TOY (Time Of Year clock) and as such the BootPROM allows
> only the years 70..72 as valid values (70 for even years, 71 for odd years,
> 72 for leap years).
> Otherwise you'll get a self test failure and the date will be reset, as Maciej
> already pointed out. And yes, this code has to be modified every two years :(.
Sounds really bad - but regular kernel patching isn't an option either.
You could use some sliding window solution in combination with a time stored