linux-kernel - Re: [stable] The SMP alternatives code breaks exception fixup?

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Date:	Wed, 6 Feb 2008 22:55:00 -0800
From:	Greg KH <greg@...ah.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chuck Ebbert <cebbert@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Gerd Hoffmann <kraxel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Stable Team <stable@...nel.org>
Subject: Re: [stable] The SMP alternatives code breaks exception fixup?

On Thu, Feb 07, 2008 at 12:43:09AM +0100, Ingo Molnar wrote:
> 
> * Linus Torvalds <torvalds@...ux-foundation.org> wrote:
> 
> > > I don't see this in Linus's tree, am I just missing it?  Do you have 
> > > a git commit id?
> > 
> > Isn't this 9d55b9923a1b7ea8193b8875c57ec940dc2ff027 (possibly with 
> > 2532ec6d178abc55681d049097d3dc577eaa266c on top)?
> 
> yeah.
> 
> Greg: note that this is against post-unification asm-x86/futex.h so it 
> wont apply to .24.
> 
> I've backported the fix to .24 - find it below. (untested but obvious)

unfortunatly it doesn't even compile:

distcc[30740] ERROR: compile (null) on localhost failed
In file included from include/asm/futex.h:2,
                 from kernel/futex.c:59:
include/asm/futex_32.h:72:29: error: macro "__futex_atomic_op1" passed 6 arguments, but takes just 5
In file included from include/asm/futex.h:2,
                 from kernel/futex.c:59:
include/asm/futex_32.h: In function 'futex_atomic_op_inuser':
include/asm/futex_32.h:71: error: '__futex_atomic_op1' undeclared (first use in this function)
include/asm/futex_32.h:71: error: (Each undeclared identifier is reported only once
include/asm/futex_32.h:71: error: for each function it appears in.)
distcc[30739] ERROR: compile kernel/futex.c on localhost failed
make[1]: *** [kernel/futex.o] Error 1


Care to try again?  :)

thanks,

greg k-h
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