Re: [PATCH] x86: Removing unnecessary check in detect_ht

From: Ingo Molnar
Date: Wed May 18 2011 - 17:08:09 EST



* Rao, Nikhil <nikhil.rao@xxxxxxxxx> wrote:

> This patch removes a check that prevents correct CPU topology setup
> when cpuid extensions for topology enumeration are not supported and
> the number of processors reported to the OS is smaller than
> smp_num_siblings

What bad effect was observed, exactly? An annoying warning in the bootlog and
incorrect scheduler domain setup (SMP instead of SMT) - or something else as
well?

Thanks,

Ingo
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