Re: [all better] Re: regression: massive trouble with fpu rework

From: Borislav Petkov
Date: Mon Jun 29 2015 - 09:09:53 EST


On Mon, Jun 29, 2015 at 02:27:23PM +0200, Mike Galbraith wrote:
> With it commented out, and fpu__init_system() either back at previously
> booting position [5] or at original [0], doesn't matter, box is dead,
> but differently. It stalls after setting clocksource to tsc, and just
> sits there.

... which means that unmasking the CPUID features is absolutely needed
on Linux. Not unmasking probably triggers this original bug which

066941bd4eeb ("x86: unmask CPUID levels on Intel CPUs")

fixed.

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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