linux-kernel - Re: 2.6.20-git: undefined reference to `smp_call_function

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Message-Id: <1171736745.3379.24.camel@mulgrave.il.steeleye.com>
Date:	Sat, 17 Feb 2007 12:25:45 -0600
From:	James Bottomley <James.Bottomley@...elEye.com>
To:	tglx@...utronix.de
Cc:	Len Brown <lenb@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.20-git: undefined reference to `smp_call_function_single'

On Sat, 2007-02-17 at 11:25 +0100, Thomas Gleixner wrote:
> On Fri, 2007-02-16 at 21:08 -0500, Len Brown wrote:
> > Yes, an obscure .config, but it used to build before today:
> >
> > kernel/built-in.o: In function `tick_broadcast_on_off':
> > (.text+0x1b6f0): undefined reference to `smp_call_function_single'
> 
> Yup, this obscure machine is missing smp_call_function_single().
> 
> James ?

Where's this coming from?  smp_call_function_single() is an obscure kvm
only API think for x86/ia64 ... it's not supported on any other
architecure.  The symbol you have is blowing up in the kernel
subdirectory which suggests someone has tried to use it in generic code,
which will fail to compile on a lot more than voyager and parisc ...

James


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