On Sat, 2019-02-23 at 12:24:39 UTC, Michael Ellerman wrote:
> In __secondary_start() we load the thread_info of the idle task of the
> secondary CPU from current_set[cpu], and then convert it into a stack
> pointer before storing that back to paca->kstack.
>
> As pointed out in commit f761622e5943
In __secondary_start() we load the thread_info of the idle task of the
secondary CPU from current_set[cpu], and then convert it into a stack
pointer before storing that back to paca->kstack.
As pointed out in commit f761622e5943 ("powerpc: Initialise
paca->kstack before early_setup_secondary") it'