On Mon, 2007-09-24 at 12:34 -0700, Andrew Morton wrote:
> > It prints twice 'System halted' and blinks the keyboard leds, but does
> > not switch off. On all other kernel version I only see one keyboard
> > blink before the power goes out.
>
> ok...
>
> > I compared its dmesg to vanilla-rc7 and -rc4-mm1, but expect that rc-4
> > assigns different IRQs I can't see any differences except the normal
> > variation in BogoMips etc.
Can your check whether 2.6.23-rc7 +
http://tglx.de/projects/hrtimers/2.6.23-rc7/patch-2.6.23-rc7-hrt1.patch
works for you ?
> hm, dunno. The only substantial patch which touches
> arch/x86_64/kernel/process.c (which is where cpu_idle lives) is
> x86_64-prep-idle-loop-for-dynticks.patch.
>
> The problem is, 2.6.23-rc6-mm1's git-acpi patch had all the new cpuidle
> code in it. Len dropped all that code over the weekend (which is when I
> picked this copy of his tree), so 2.6.23-rc7-mm1 doesn't have the cpuidle
> code. Len will be reapplying the cpuidle patches today(ish) so next -mm
> _will_ have the cpuidle code.
>
> So what we have in rc7-mm1 is this transient no-cpuidle state. It could be
> that the x86_64 dynticks code (which was developed previously tested in
> conjunction with the cpuidle patches) has some dependency on cpuidle.
It should not. cpuidle makes use of dynticks not the other way round.
tglx
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