linux-kernel - Re: [PATCH] x86/tsc: Don't use cpuid 0x16 leaf to determine cpu speed.

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Message-ID: <4Udy8mtfrDyzOi7GIUn2HDFwbr9HwBXLEQ1bPof3yvTKKYfcGlKd9c3RzGq-okmPQz4Gr3N-kapF-jiTJesrU2LGxQ9c_vtz5-2rhyR87Ek=@protonmail.com>
Date:   Thu, 05 Dec 2019 21:38:35 +0000
From:   Krzysztof Piecuch <piecuch@...tonmail.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
        "rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
        "drake@...lessm.com" <drake@...lessm.com>,
        "piecuch@...tonmail.com" <piecuch@...tonmail.com>,
        "malat@...ian.org" <malat@...ian.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "juri.lelli@...hat.com" <juri.lelli@...hat.com>
Subject: Re: [PATCH] x86/tsc: Don't use cpuid 0x16 leaf to determine cpu speed.

Sorry, it doesn't work. I will follow up with something better
in a couple of days.

I've bisected the bug and it was introduced on
aa297292d708e89773b3b2cdcaf33f01bfa095d8 - I will start from there.

I would appreciate any feedback you have on this topic.

Kind regards,
Krzysztof Piecuch