[parisc-linux] Clock skew problems

[Grant Grundler]

Andreas Thienemann wrote:
> But now, when I try do compile some software I'm having problems.
> 
> I'm getting the following message from make:
> 
> make: *** Warning: File `libdb.a' has modification time in the future
> (2001-04-19 15:15:33 > 2001-04-19 15:15:04)
>
> And I have absolutely no Idea why this is happening.

Everytime one updates the kernel time and it gets set *back*,
make will notice the derived objects (ie libdb.a) are newer than
current time and complain.

However, I suspect the kernel isn't keeping time perfectly and updating
from the HW clock (YMMV: historically, some servers had better RTC crystals)
is causing the problem. Having a bad RTC will also look like
the kernel isn't keeping time when in fact it is.

a500# date
Thu Apr 19 11:11:02 MDT 2001
a500# hwclock
Thu Apr 19 11:11:01 2001  -1.003308 seconds
a500# uptime
 11:11:36 up 21:25,  1 user,  load average: 0.00, 0.04, 0.04

So not doing too badly - but it needs to be fixed.
I'm assuming the A500 has a good RTC.
I'll submit a bug for you.

grant

Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253