Re: [Xen-devel] pv-ops domU not working with MSI interrupts on Nehalem

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sat, Oct 02, 2010 at 10:46:45PM -0700, Bruce Edge wrote:
> >
> > and your devel/xen-pcifront-0.6 forces a config restart:
> >
> > 0 %> make oldconfig
> > scripts/kconfig/conf --oldconfig arch/x86/Kconfig
> > *
> > * Restart config...
> > *
> > *
> > * General setup
> > *
> > Prompt for development and/or incomplete code/drivers (EXPERIMENTAL) 
> > [Y/n/?] y
> > Cross-compiler tool prefix (CROSS_COMPILE) [] (NEW) ^Cmake[1]: ***
> > [oldconfig] Interrupt
> > make: *** [oldconfig] Interrupt
> >
> > Is there a trick to avoiding the config restart?
> 
> Found the problem here - I was using a .config from a 2.6.32 kernel.
> There's something in the 2.6.36 config parsing that declares it
> invalid and starts over.
> Starting with a clean 'make defconfig' and editing that works fine.
> 
> I had never see this behavior in kernel builds before. I thought the
> .config files were always compatible between versions.
> 

You need to do "make oldconfig" to adapt/merge the 2.6.32 config to 2.6.36.

-- Pasi


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