ARM kexec SMP problem using exynos4210

Hi,

I have tested kexec to Nuri board using Exynos4210(Dual-core ARM Cortex-A9) on the latest mainline kernel but i am facing one problem.

The kernel enabled SMP, kernel_kexec() calls machine_shutdown to stop all cpus except current cpu and jumps to the new kernel but the kernel is hanged soon.

I used cpu_down(1) to make disabled cpu1 instead of smp_send_stop of machine_shutdown and it is booted successfully to new kernel.

Any ideas?

Thanks.

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