On Wednesday 07 November 2007 02:12, Andreas Herrmann wrote:
> In cases where not all CPUs are brought up during
> boot (e.g. using maxcpus and additional_cpus parameters)
> mce_cpu_callback now returns NOTFIY_BAD because
> for such CPUs cpu_data is not completely filled when
> the notifier is called. Thus mce_create_device fails right
> at its beginning:
>
> if (!mce_available(&cpu_data[cpu]))
> return -EIO;
>
> As a quick fix I suggest to check boot_cpu_data for MCE.
I guess it would be better to just move the device creation
to after the CPU has booted. AKA call mce_create_dev() on CPU_ONLINE
instead.
-Andi
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