Andrew Morton wrote:
> Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> 
>>This patch should hopefully fix Nigel's bug.
>>
>> Split out from sched-resched-opt.patch. Tested on i386 with acpi idle
>> and poll idle (previous iterations tested on various other architectures).
> 
> 
> This makes the emt64 machine reboot itself, which iirc was the behaviour in
> the failing patch from which this one was split out.
> 
> The machine is using acpi_processor_idle().
> 

OK, thanks. That must be the preempt_disable() being called in
start_secondary(). Maybe I should have listened to the comment.

Can you try the following patch?

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SUSE Labs, Novell Inc.