From owner-freebsd-current@FreeBSD.ORG  Sun Jun 15 11:19:55 2008
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 55E0F106567A;
	Sun, 15 Jun 2008 11:19:55 +0000 (UTC) (envelope-from marck@rinet.ru)
Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68])
	by mx1.freebsd.org (Postfix) with ESMTP id D3E9D8FC0A;
	Sun, 15 Jun 2008 11:19:54 +0000 (UTC) (envelope-from marck@rinet.ru)
Received: from localhost (localhost [127.0.0.1])
	by woozle.rinet.ru (8.14.2/8.14.2) with ESMTP id m5FBJrnP097719;
	Sun, 15 Jun 2008 15:19:53 +0400 (MSD) (envelope-from marck@rinet.ru)
Date: Sun, 15 Jun 2008 15:19:53 +0400 (MSD)
From: Dmitry Morozovsky <marck@rinet.ru>
To: Kris Kennaway <kris@freebsd.org>
In-Reply-To: <4854F8D0.802@FreeBSD.org>
Message-ID: <20080615151820.L43777@woozle.rinet.ru>
References: <20080615130037.J43777@woozle.rinet.ru>
	<20080615101918.GA94309@deviant.kiev.zoral.com.ua>
	<20080615145943.X43777@woozle.rinet.ru> <4854F8D0.802@FreeBSD.org>
X-NCC-RegID: ru.rinet
X-OpenPGP-Key-ID: 6B691B03
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0
	(woozle.rinet.ru [0.0.0.0]); Sun, 15 Jun 2008 15:19:53 +0400 (MSD)
Cc: Kostik Belousov <kostikbel@gmail.com>, delphij@freebsd.org,
	current@freebsd.org
Subject: Re: tmpfs panic
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: Sun, 15 Jun 2008 11:19:55 -0000

On Sun, 15 Jun 2008, Kris Kennaway wrote:

KK> > Well, but loader(8) man page said:
KK> >   The default of 32MB allows the kernel to support a maximum of ~7GB of
KK> > swap. 
KK> > and I have only 4G, and system freezes with maxswzone exaustion well
KK> > before that...
KK> 
KK> I think swap zone memory use is dependent on the allocation pattern (i.e.
KK> load dependent), so "a maximum" of 7GB might be the best case scenario (or
KK> it could be wrong, e.g. on amd64).  This is one of the factors that makes it
KK> hard to tune the value of maxswzone.

I see; I just doubleed the value to 64M, let's see what happened.

BTW, usage pattern to stress tmpfs is cvs2svn on FreeBSD ports repository, 
together with some rsyncs ;-)

Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
------------------------------------------------------------------------
*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
------------------------------------------------------------------------