Re: [PATCH] sched/topology: Fix overlapping sched_group build

[Valentin Schneider]

On Tue, Mar 24 2020, Valentin Schneider wrote:
> Fix
> ===
>
> Sanitize the groups we get out of build_group_from_child_sched_domain()
> with the span of the domain we're currently building - this ensures the
> groups we build only contain CPUs that are the right distance away from the
> base CPU. This also requires modifying build_balance_mask().
>

I somehow missed that this triggers the WARN_ON_ONCE() in
init_overlap_sched_group(). Gotta figure out why.