Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7
From: "Michael J. Cohen" <mjc@unre.st>
To: Ingo Molnar <mingo@elte.hu>
Cc: "K.R. Foley" <kr@cybsft.com>, sboyce@blueyonder.co.uk,
       linux-kernel@vger.kernel.org
In-Reply-To: <20041104100634.GA29785@elte.hu>
References: <4189108C.2050804@blueyonder.co.uk>
	 <41892899.6080400@cybsft.com> <41897119.6030607@blueyonder.co.uk>
	 <418988A6.4090902@cybsft.com>  <20041104100634.GA29785@elte.hu>
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Date: Thu, 04 Nov 2004 05:23:25 -0500
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On Thu, 2004-11-04 at 11:06 +0100, Ingo Molnar wrote:
> * K.R. Foley <kr@cybsft.com> wrote:
> 
> > >include/asm/vsyscall.h:48: error: previous declaration of `__xtime_lock'
> > 
> > Does the patch below fix the above error?
> 
> i applied your earlier patch but many more changes were needed to port
> PREEMPT_REALTIME (and in particular, PREEMPT_HARDIRQS) to x64. You can
> check out the x64 bits in -V0.7.8 which can be downloaded from the usual
> place:
> 
>    http://redhat.com/~mingo/realtime-preempt/
> 
> Sid, does this one build/work for you? (i had to disable CPUFREQ in the
> .config to get it to build - an -mm bug i suspect.)
> 
> 	Ingo
> -
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Ingo
	Great timing! only 7 minutes after I posted my concession speech. ;)

Here you go:

  LD      .tmp_vmlinux1
kernel/built-in.o(.text+0x1e57c): In function `___trace':
: undefined reference to `irqs_disabled_flags'
kernel/built-in.o(.text+0x1e797): In function `add_preempt_count':
: undefined reference to `irqs_disabled_flags'
make: *** [.tmp_vmlinux1] Error 1

------
Michael Cohen

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