Re: [PATCH] irqchip/bcm-6345-l1: fix SMP support

From: Florian Fainelli
Date: Mon Feb 22 2021 - 16:00:48 EST




On 2/22/2021 12:13 PM, Álvaro Fernández Rojas wrote:
> Some BCM6358 devices start with Core #1 instead of Core #0.
> Apart from that, SMP is restricted to 1 CPU since BCM6358 has a shared TLB,
> which makes it impossible for the current SMP support to start both CPUs.
>
> The problem is that smp_processor_id() returns 0 and then cpu_logical_map()
> converts that to 1, which accesses an uninitialized position of intc->cpus[],
> resulting in a kernel panic.

Sounds like you nee to correct the way the cpu_logical_map[] is
populated then?
--
Florian