* Igor Mammedov <imammedo@xxxxxxxxxx> wrote: > if during CPU hotplug master CPU failed to wake up AP > it set percpu x86_cpu_to_apicid to BAD_APICID=0xFFFF for AP. > > However following attempt to unplug that CPU will lead to > out of bound write access to __apicid_to_node[] which is > 32768 items long on x86_64 kernel. > > So drop setting x86_cpu_to_apicid to BAD_APICID in do_boot_cpu() > and allow acpi_processor_remove()->acpi_unmap_lsapic() cleanly > remove CPU. Same suggestion as for the other fix patch: the fix should precede the patch that exposes it. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
