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To: john stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Paul Mackerras <paulus@samba.org>,
       Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@elte.hu>,
       lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Close small window for vsyscall time inconsistencies
From: Andi Kleen <andi@firstfloor.org>
References: <1207340264.6222.17.camel@localhost.localdomain>
Date: Mon, 07 Apr 2008 13:27:28 +0200
In-Reply-To: <1207340264.6222.17.camel@localhost.localdomain> (john stultz's message of "Fri, 04 Apr 2008 13:17:44 -0700")
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john stultz <johnstul@us.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