Re: new asm-offsets.h patch problems

[Sam Ravnborg]

On Mon, Sep 12, 2005 at 09:00:06AM -0700, Luck, Tony wrote:
> So I still don't understand what is really happening here.
> 
> I left my build script running overnight ... working on a
> kernel at the 357d596bd... commit (where Linus merged in
> my tree last night).  This one has your "archprepare" patch
> already included.
> 
> Sometimes a build for a config succeeds, and sometimes it
> fails. (tiger_defconfig for the last six builds has had a
> GOOD, BAD, BAD, BAD, GOOD, GOOD sequence, while bigsur_defconfig
> went GOOD, BAD, BAD, BAD, BAD, BAD).  This non-determinism
> doesn't fit in well with your explanation of missing defines
> for PAGE_SIZE etc.

I have tried to reproduce it locally, but my gcc barfed out
in namei.c with an internal error :-(
I can explain why you see recompiles though.

asm-offsets.c has a dependency on asm-offsets.h
So in the cases where asm-offsets.c is build just before asm-offsets.h
then no recompile happens - at least not if they get same timestamp.
But in the cases where there is a command or two in betweem the two
the timestamps differ so next time you execute 'make' it will see that
asm-offsets.h is newe than asm-offsets.c and thus it will rebuild the
asm-offsets.h file.

But again this does not expalin why it sometimes goes bad, sometimes
goes well. I need some compile output for good and bad cases to dig more
into it.
There is no chance this is unrealted to the asm-offsets changes?

	Sam

> 
> -Tony
> 
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