Hi Sergei,
On Tue, Jun 7, 2016 at 12:26 AM, Sergei Shtylyov
<sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:
>> 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
>> 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@xxxxxxxxxxxxxx
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
