From owner-freebsd-current@FreeBSD.ORG  Tue Jul 12 21:49:17 2011
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 77A73106566C
	for <freebsd-current@FreeBSD.org>; Tue, 12 Jul 2011 21:49:17 +0000 (UTC)
	(envelope-from avg@FreeBSD.org)
Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140])
	by mx1.freebsd.org (Postfix) with ESMTP id C7A6C8FC17
	for <freebsd-current@FreeBSD.org>; Tue, 12 Jul 2011 21:49:16 +0000 (UTC)
Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua
	[212.40.38.100])
	by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id AAA21439;
	Wed, 13 Jul 2011 00:49:13 +0300 (EEST)
	(envelope-from avg@FreeBSD.org)
Received: from localhost ([127.0.0.1])
	by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD))
	id 1QgkpN-0000Sx-LR; Wed, 13 Jul 2011 00:49:13 +0300
Message-ID: <4E1CC157.800@FreeBSD.org>
Date: Wed, 13 Jul 2011 00:49:11 +0300
From: Andriy Gapon <avg@FreeBSD.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
	rv:5.0) Gecko/20110706 Thunderbird/5.0
MIME-Version: 1.0
To: Pan Tsu <inyaoo@gmail.com>, freebsd-current@FreeBSD.org
References: <8639ib1968.fsf@gmail.com>
In-Reply-To: <8639ib1968.fsf@gmail.com>
X-Enigmail-Version: 1.2pre
Content-Type: text/plain; charset=x-viet-vps
Content-Transfer-Encoding: 7bit
Cc: 
Subject: Re: pmcstat(8) and machdep.hlt_cpus
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
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: Tue, 12 Jul 2011 21:49:17 -0000

on 13/07/2011 00:27 Pan Tsu said the following:
> pmcstat(8) stopped to work for me after largeSMP landed in r222813.
> At the time only pmccontrol(8) was updated. Then the next day
> machdep.hlt_cpus was ripped out. So, I've assumed it's going to
> be fixed by subsequent commits and commented out related code locally.
> 
>   $ qemu -smp 2 -nographic ...
>   $ kldload hwpmc
>   $ pmcstat -S instructions -T
>   pmcstat: ERROR: Cannot determine which CPUs are halted: No such file or directory
>   Exit 71
> 
> A month passed, nothing changed. Am I doing smth wrong?

Only one thing - waiting one month before reporting a regression...

> FWIW, smp(4) still documents machdep.hlt_cpus and machdep.hlt_logical_cpus.
> It should probably be updated with hint.lapic.X.disabled from UPDATING.

Yes.

Thank you for the reports.
-- 
Andriy Gapon