Re: Problems building 2.6.26 and 2.6.27-rc1

[Sam Ravnborg <sam@ravnborg.org>]

On Wed, Jul 30, 2008 at 08:07:28PM +0000, Miller, Mike (OS Dev) wrote:
> Roland wrote:
> 
> >
> >  > I'm getting the following error when trying to build
> > either 2.6.26 or  > 2.6.27-rc1:
> >  >
> >  > arch/x86/kernel/head64.c: In function 'x86_64_start_kernel':
> >  > arch/x86/kernel/head64.c:88: error: size of array 'type
> > name' is negative
> >
> > It looks like you're hitting
> >
> >         BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
> >
> > No idea why you're hitting that though.  What's your .config
> > and compiler?
> >
> I think maybe I've figured out what's breaking my build. If use "make -jN" I hit the error. I usually set N to the number of processors (real and HT). So if /proc/cpuinfo display info about 4 processors I use -j4, etc. If I don't specify the number of jobs to run simultaneously the build completes with just the usual warnings.
> 
> Any experts on parallelism out there?

Can you post the output of a make -j4 V=1 run that fials and one that succeeds.
Then we can maybe spot something.

	Sam