Clock skew detected. Your build may be incomplete.???

[padoor]

[whig]

Network file sharing? The computers' clocks are out of sync.

[krinn]

it's just a warning that might show some problem, but in most case, it's still just a warning and it could happen easy: date your computer at X+1, build your kernel, date your computer to X : now clock skew detect because file your are trying to build were build in a date later than now.

it's really common when doing first kernel from livecd with bios date higher than current date. And you'll see it when rebuilding the kernel in your clean gentoo where your date is set properly.

i don't see a real problem here.

[NeddySeagoon]

padoor,

The problem comes from two conditions:-
1. Your clock has been set backward in time
2. You are building something that you have built before.

Heres what happens with the kernel as an example. You set your clock back an hour or two. Now you go into make menuconfig and change some settings, then do the usual build.

Make looks at the timestamps on the .o files and finds that they are all newer than the contributing .c and .h files and the .config file.
So make visits the entire tree and compiles nothing.
You are left with your old kernel from your updated .config because time went backwards.
*NIX time must only increment to avoid issues like this.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

[eLusive]

This caught me out... I was recompiling my kernel to include ethernet drivers, then stressing out about none of them working.

Turns out the above post is correct; make checks when the file was created, and if it's newer, it doesn't touch it... or something like that. Anyway, I used the quick hack over at cydeways to touch all the files inside my kernel dir, which updates all the times.

http://www.cydeweys.com/blog/2007/08/27/fixing-clock-skew-problems-in-gnulinux/

Hopefully this helps a few people who came to the forum instead of going to a blog from 2007 (like I did)

[bandreabis]