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Date: Tue, 16 Dec 2008 18:11:33 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: GIT head doesn't seem to want to build on 32bit..
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On Tue, 16 Dec 2008 09:47:02 -0800 (PST)
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> 
> 
> On Tue, 16 Dec 2008, Alan Cox wrote:
> >
> >   CC      arch/x86/kernel/traps.o
> >   CC      arch/x86/kernel/irq.o
> >   CC      arch/x86/kernel/irq_32.o
> > arch/x86/kernel/irq_32.c: In function ¡do_IRQ¢:
> > arch/x86/kernel/irq_32.c:211: error: ¡per_cpu__vector_irq¢ undeclared (first use in this function)
> > arch/x86/kernel/irq_32.c:211: error: (Each undeclared identifier is reported only once
> > arch/x86/kernel/irq_32.c:211: error: for each function it appears in.)
> > make[1]: ***
> > [arch/x86/kernel/irq_32.o] Error 1
> > 
> > gcc version 4.3.0 20080428 (Red Hat 4.3.0-8) (GCC) 
> 
> Hmm. That code has been like that since before -rc1. And I cannot 
> reproduce it in my 32-bit environment. That's with your config file, and 
> despite the fact that I have the same compiler version on that machine.

I built a 64bit kernel from the same source tree first, then did make
mrproper, then it broke. I'll investigate further.