On Wed, 28 Oct 2020 14:23:34 -0400, Qian Cai wrote:
> The call to rcu_cpu_starting() in start_secondary() is not early enough
> in the CPU-hotplug onlining process, which results in lockdep splats as
> follows:
>
> WARNING: suspicious RCU usage
> -----------------------------
> kernel/locking/lockdep.c:3497 RCU-list traversed in non-reader section!!
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/smp: Call rcu_cpu_starting() earlier
https://git.kernel.org/powerpc/c/99f070b62322a4b8c1252952735806d09eb44b68
cheers
