Re: [PATCH v3 3/5] x86: fix list corruption on CPU hotplug

From: Ingo Molnar
Date: Mon Apr 14 2014 - 05:20:20 EST



* Igor Mammedov <imammedo@xxxxxxxxxx> wrote:

> currently if AP wake up is failed, master CPU marks AP as not present
> in do_boot_cpu() by calling set_cpu_present(cpu, false).
> That leads to following list corruption on the next physical CPU
> hotplug:

Shouldn't this fix precede the main change to the smp bootup logic?

Can this bug trigger with current upstream kernels?

Thanks,

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/