Re: s2ram on Lenovo X300 is broken

Rafael J. Wysocki
2009-04-26T23:13:17Z

On Sunday 26 April 2009, Kaushik Barde wrote:
> I am using stable-2.6.29.1 on Lenovo X300.
>
> echo mem > /sys/power/state works if I disable AP core using echo 0 > /sys/devices/system/cpu/cpu1/online.
>
> With SMP, first s3 cycle goes through, subsequent suspend does not work.
>
> Is this a known issue with CPU_HOTPLUG or suspend re-ordering code?

Similar symptoms have been reported, but the previous reporter did not connect
them with the CPU hotplugging.

The issue isn't actually known and suspend-resume works on many SMP systems.

Is the problem reproducible with the current mainline kernel?

Rafael