Hi Sergei,

On Tue, Jun 7, 2016 at 12:26 AM, Sergei Shtylyov
[off-list ref] wrote:

quoted

With regards to SMP. Have you checked to make sure CPU hotplug works
on all CPUs?

   How to test the CPU hotplug? I've now added the SMP support and made sure
both CPUs are online and serve IRQs...

Off/online all CPUs:

    for i in /sys/*/*/cpu/cpu[0-9]*; do echo 0 > $i/online; echo 1 >
$i/online; done

Offline all CPUs:

    for i in /sys/*/*/cpu/cpu[0-9]*; do echo 0 > $i/online; done; cat
/proc/cpuinfo

Online all CPUs:

   for i in /sys/*/*/cpu/cpu[0-9]*; do echo 1 > $i/online; done; cat
/proc/cpuinfo

quoted

And that the system behaves sanely on suspend/resume.

   I'd be thankful if you told me how to test that. :-)

System suspend:

    echo mem > /sys/power/state

System resume: You're gonna need a "wakeup-source" in your DTS, e.g. gpio-keys.
Serial should work too, echo "enabled" to the corresponding wakeup
file in /sys first.

In case of issues, try "echo 0 > /sys/module/printk/parameters/console_suspend".

Good luck!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds