From owner-freebsd-current@FreeBSD.ORG  Sat Aug 21 13:18:22 2010
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id EDAE210656A4
	for <freebsd-current@FreeBSD.org>; Sat, 21 Aug 2010 13:18:22 +0000 (UTC)
	(envelope-from bf1783@googlemail.com)
Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50])
	by mx1.freebsd.org (Postfix) with ESMTP id 866AC8FC1F
	for <freebsd-current@FreeBSD.org>; Sat, 21 Aug 2010 13:18:22 +0000 (UTC)
Received: by wwi18 with SMTP id 18so1382642wwi.31
	for <freebsd-current@FreeBSD.org>; Sat, 21 Aug 2010 06:18:21 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=googlemail.com; s=gamma;
	h=domainkey-signature:mime-version:received:received:reply-to
	:in-reply-to:references:date:message-id:subject:from:to:content-type;
	bh=DxjiBAntRF2mpJ22AEmqY+SNKd6pa79KUg/m21/Hx1o=;
	b=tii7iH/EXbS3vS9Lwzkc+8bQhlVjJglh9TpIqoyv6HHfUbbVelSbp7A5LIeYYIEZZd
	GB9iZK7iY1B/mXL3aGPdj+A2iUM5o567X8yUKBDUjjEd2PBsQyZMyswN4McZR2IZhL9j
	s2TMhewdMVm20/sAXnNLoB1la4uLBI9HBL0Po=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma;
	h=mime-version:reply-to:in-reply-to:references:date:message-id
	:subject:from:to:content-type;
	b=ohQu3up3GpMr3nsKBwC3jgCgTJqfaqzMJT7fzgIh4yQxNZhSxRIT0szbC6TrM5eUfV
	/JcObX0Ek/K1oYMHuO2QYjr3DJ22xaR1Pkc359Pp/3IUiYiScWcR8BcHd97Mb7H9iy7W
	YdXH/SJYdPoS4ANgO84ONq/eYAFG7/H8qzs90=
MIME-Version: 1.0
Received: by 10.216.178.130 with SMTP id f2mr2436325wem.101.1282396701437;
	Sat, 21 Aug 2010 06:18:21 -0700 (PDT)
Received: by 10.216.183.212 with HTTP; Sat, 21 Aug 2010 06:18:21 -0700 (PDT)
In-Reply-To: <AANLkTin0SHWRobn+GREOPtyRMGhoLKdFBMXQWMSa+rt7@mail.gmail.com>
References: <AANLkTin0SHWRobn+GREOPtyRMGhoLKdFBMXQWMSa+rt7@mail.gmail.com>
Date: Sat, 21 Aug 2010 13:18:21 +0000
Message-ID: <AANLkTinj+p0AxkX25462eejRvsS6nQFexizoyR8jf40+@mail.gmail.com>
From: "b. f." <bf1783@googlemail.com>
To: freebsd-current@FreeBSD.org
Content-Type: text/plain; charset=ISO-8859-1
Cc: 
Subject: Fwd: Latest intr problems
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: bf1783@gmail.com
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 21 Aug 2010 13:18:23 -0000

Andriy Gapon wrote:
>on 21/08/2010 12:35 Andriy Gapon said the following:
>> I feel like you might be having a problem with clocks...
>
>FWIW, I am reading this document http://edc.intel.com/Link.aspx?id=1484
>and I see this sentence: "All of the clocks in the processor core are
>stopped in the C3 state".
>
>I see that you have C3 state enabled and it's regularly entered:
>dev.cpu.0.cx_usage: 0.00% 5.51% 94.48% last 305us

I don't think this accounts for all of his problems, unless his
machine has an unusual configuration.  Alexander and I recommended
that he try different clocks, and just recently, for example, he wrote
that he had used:

loader.conf
hint.apic.0.clock="0"
hint.atrtc.0.clock="0"
hint.attimer.0.clock="0"
hint.hpet.0.legacy_route="1"
machdep.disable_rtc_set="1"
kern.eventtimer.timer2="HPET"
kern.eventtimer.timer1="NONE" (Or, if available, HPET1, ...)
kern.eventtimer.singlemul="1"

sysctl.conf:
kern.timecounter.hardware=HPET

and reported that it did not help.  The HPET doesn't usually suffer
from the problem that you are describing, right?


b.