panic: invalid bcd xxx

[Oleksandr Tymoshenko]

Eric van Gyzen (vangyzen at FreeBSD.org) wrote:
> On 03/04/2017 11:44, Oleksandr Tymoshenko wrote:
> > Adrian Chadd (adrian.chadd at gmail.com) wrote:
> >> We're not; we need to cope with crappy BIOS emulations and not crash :)
> >>
> >> What's Linux doing instead? Ignoring the RTC?
> >
> > I believe I saw the same problem on either my NUC or Minnowboard.
> > I just hacked around it to work on something else and didn't
> > have time to get back to the device since then. But it's not
> > just emulation BIOS. I think the right way to go is to perform sanity
> > check on RTC data and refuse to use it if it's not valid.
> 
> cem@ posted this patch:
> 
> 	http://dpaste.com/1K2W05E
> 
> If someone can test it, I'll gladly commit it.  The real-time clock will 
> likely be wrong, but it won't panic with INVARIANTS.

I can not reproduce crash any more. Probably RTC battery got charged
again. I tested this patch with working RTC - there is no regression
and patch looks OK functional-wise. 

-- 
gonzo