From owner-freebsd-mips@freebsd.org  Sun Nov  1 20:31:31 2015
Return-Path: <owner-freebsd-mips@freebsd.org>
Delivered-To: freebsd-mips@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id BF743A237A7
 for <freebsd-mips@mailman.ysv.freebsd.org>;
 Sun,  1 Nov 2015 20:31:31 +0000 (UTC)
 (envelope-from eugen@grosbein.net)
Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 4A60B113A;
 Sun,  1 Nov 2015 20:31:30 +0000 (UTC)
 (envelope-from eugen@grosbein.net)
Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221])
 by hz.grosbein.net (8.14.9/8.14.9) with ESMTP id tA1KVD2L055777
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT);
 Sun, 1 Nov 2015 21:31:15 +0100 (CET)
 (envelope-from eugen@grosbein.net)
X-Envelope-From: eugen@grosbein.net
X-Envelope-To: adrian@freebsd.org
Received: from [10.58.0.10] (dadvw [10.58.0.10])
 by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id tA1KV8kV065396
 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT);
 Mon, 2 Nov 2015 03:31:08 +0700 (KRAT)
 (envelope-from eugen@grosbein.net)
Subject: Re: CPU underload
To: Adrian Chadd <adrian@freebsd.org>
References: <56348063.3090508@grosbein.net> <56348239.3050701@grosbein.net>
 <CAJ-Vmok+gKXcpzpxNCBhxX8sYSh+QO7OaeojB4MCufO+A4zceg@mail.gmail.com>
 <563500FC.8020201@grosbein.net>
 <CAJ-Vmo=EpmG6OJxq_v_mqKMF48h_B3K7vKqnnaKAi3x1s-uaWQ@mail.gmail.com>
 <5635148B.2070307@grosbein.net>
 <CAJ-VmomzkG8ZB0h1Qc=Oeny2ZOzQg1UirUprM_gmMy64F5ZRYw@mail.gmail.com>
 <56351AA6.80903@grosbein.net>
 <CAJ-VmomLen5p7ELejU7QtC5CO2j8hydb_CvdOqQsfaaMAtmdkA@mail.gmail.com>
 <563523CA.3040207@grosbein.net>
 <CAJ-Vmonpd8R5C+NvhOGFD1okkkit990DV8c4Dm+LmpZ2uFfVkA@mail.gmail.com>
Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org>
From: Eugene Grosbein <eugen@grosbein.net>
Message-ID: <56367686.4090801@grosbein.net>
Date: Mon, 2 Nov 2015 03:31:02 +0700
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101
 Thunderbird/38.3.0
MIME-Version: 1.0
In-Reply-To: <CAJ-Vmonpd8R5C+NvhOGFD1okkkit990DV8c4Dm+LmpZ2uFfVkA@mail.gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00,LOCAL_FROM
 autolearn=no version=3.3.2
X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1%
 *      [score: 0.0000] *  2.6 LOCAL_FROM From my domains
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on hz.grosbein.net
X-BeenThere: freebsd-mips@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Porting FreeBSD to MIPS <freebsd-mips.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-mips>,
 <mailto:freebsd-mips-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-mips/>
List-Post: <mailto:freebsd-mips@freebsd.org>
List-Help: <mailto:freebsd-mips-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-mips>,
 <mailto:freebsd-mips-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 01 Nov 2015 20:31:31 -0000

02.11.2015 2:36, Adrian Chadd пишет:
> Hi,
>
> Whilst I'm thinking about that, how about we take a look at the
> unaligned accesses?
>
> I bet it's pmcstat, so can you do this:
>
> gdb pmcstat
> list *0x(address of the 'pc' value returned by the kernel messages)
>
> I'd like to figure out where in pmcstat/libpmc it's doing stupid stuff
> and undo it.
>
> Thanks!

I'd like to, but there is no space for gdb on real device.
Is it possible to use qemu for that?