linux-kernel - Re: [PATCH] Close small window for vsyscall time inconsistencies

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Message-ID: <874padsy5b.fsf@basil.nowhere.org>
Date:	Mon, 07 Apr 2008 13:27:28 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	john stultz <johnstul@...ibm.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Paul Mackerras <paulus@...ba.org>,
	Tony Luck <tony.luck@...el.com>, Ingo Molnar <mingo@...e.hu>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Close small window for vsyscall time inconsistencies

john stultz <johnstul@...ibm.com> writes:
>
> The update_vsyscall then runs, and updates the clocksource frequency
> with a slower frequency.

In the new code TSC should be only used on fixed-pstate TSC systems
(cpufreq always marks it unstable), so that cannot really happen.

Jiri had his patchkit to fix that, but it never got merged.

-Andi
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