From: Peter Zijlstra <peterz@infradead.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>, x86-ml <x86@kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH] x86, TSC: Add a software TSC offset
Date: Tue, 22 Jul 2014 10:00:16 +0200 [thread overview]
Message-ID: <20140722080016.GY3935@laptop> (raw)
In-Reply-To: <CALCETrXOpcegDp+eUTWqDkO0jWqgJNYhKJW=HbzvT1ga4Ekxog@mail.gmail.com>
On Mon, Jul 21, 2014 at 03:13:33PM -0700, Andy Lutomirski wrote:
> >> I actually own one of these systems. It's a Sandy Bridge Core-i7
> >> Extreme or something like that.
> >
> > Ha, cool, so I've got my tester! :-)
>
> Ha. Ha ha. Muahaha. Because IIRC this box is synced until the first
> time it suspends.
Oh cute, one of those :-) Yes some BIOSes write 'random' crap into the
TSC when doing the S states jig. We have some tsc suspend/resume hooks
to correct the worst of that, but yeah screwy that.
next prev parent reply other threads:[~2014-07-22 8:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-19 13:06 [PATCH] x86, TSC: Add a software TSC offset Borislav Petkov
2014-07-19 13:28 ` Borislav Petkov
2014-07-21 19:34 ` Andy Lutomirski
2014-07-21 21:35 ` Borislav Petkov
2014-07-21 21:41 ` Andy Lutomirski
2014-07-21 21:52 ` Borislav Petkov
2014-07-21 21:56 ` Andy Lutomirski
2014-07-21 22:06 ` Thomas Gleixner
2014-07-21 22:11 ` Thomas Gleixner
2014-07-21 22:14 ` Andy Lutomirski
2014-07-21 22:08 ` Borislav Petkov
2014-07-21 22:13 ` Andy Lutomirski
2014-07-21 22:30 ` Borislav Petkov
2014-07-21 22:43 ` Andy Lutomirski
2014-07-21 23:01 ` Borislav Petkov
2014-07-22 8:00 ` Peter Zijlstra [this message]
2014-07-22 7:57 ` Peter Zijlstra
2014-07-22 2:40 ` Steven Rostedt
2014-07-22 8:59 ` Borislav Petkov
2014-07-22 12:05 ` Borislav Petkov
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