Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.7

From: Michael J. Cohen
Date: Thu Nov 04 2004 - 05:25:25 EST


On Thu, 2004-11-04 at 11:06 +0100, Ingo Molnar wrote:
> * K.R. Foley <kr@xxxxxxxxxx> 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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