From owner-freebsd-current@FreeBSD.ORG Wed Aug 22 14:46:56 2007 Return-Path: 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 444F816A419 for ; Wed, 22 Aug 2007 14:46:56 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: from blah.sun-fish.com (blah.sun-fish.com [217.18.249.150]) by mx1.freebsd.org (Postfix) with ESMTP id E161613C49D for ; Wed, 22 Aug 2007 14:46:55 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: from blah.sun-fish.com (localhost [127.0.0.1]) by blah.sun-fish.com (Postfix) with ESMTP id 262A01B10ED2; Wed, 22 Aug 2007 16:46:55 +0200 (CEST) Received: from hater.cmotd.com (hater.cmotd.com [192.168.3.125]) by blah.sun-fish.com (Postfix) with ESMTP id 234E31B10EB5; Wed, 22 Aug 2007 16:46:55 +0200 (CEST) Message-ID: <46CC4C5F.9050704@moneybookers.com> Date: Wed, 22 Aug 2007 17:46:55 +0300 From: Stefan Lambrev User-Agent: Thunderbird 2.0.0.4pre (X11/20070711) MIME-Version: 1.0 To: Kris Kennaway References: <46C9B99C.1060403@moneybookers.com> <46CA951D.1060303@moneybookers.com> <20070821163729.GA91485@rot26.obsecurity.org> <46CBDE05.2030007@moneybookers.com> <20070822135932.GA9190@rot26.obsecurity.org> In-Reply-To: <20070822135932.GA9190@rot26.obsecurity.org> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP on BLAH Cc: Eric Kjeldergaard , freebsd-current@freebsd.org Subject: Re: kernel panic with memory disks X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Aug 2007 14:46:56 -0000 Hello, Kris Kennaway wrote: > On Wed, Aug 22, 2007 at 09:56:05AM +0300, Stefan Lambrev wrote: > > >>> No, you should use -o swap. Where did it tell you to change the >>> sysctls? >>> >>> Kris >>> >>> >> Nowhere just guessing. >> > > OK, often not a good idea :) > > >> I just needed one big file in the memory to ignore the slowness of hard >> drives, to run few small benchmarks :) >> I did this using tmpfs, but it act just like "-t swap" :) >> > > Yes, when you don't have enough RAM to do the thing you want. > > >> Btw the confusion comes from the manual of mdconfig where it states: >> >> swap Swap space is used to back this memory disk. >> >> and I thought that type swap is always stored on the hard drives. >> >> and md(4) explains it a lot better: >> >> swap Backing store is allocated from buffer memory. Pages get pushed >> out to the swap when the system is under memory pressure, >> other- >> wise they stay in the operating memory. Using swap backing is >> generally preferable over malloc backing. >> > > OK, that could certainly be improved. Can you please submit a PR? > > Kris > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > Ok sent. Should be visible at some point here: http://www.freebsd.org/cgi/query-pr.cgi?pr=115721 -- Best Wishes, Stefan Lambrev ICQ# 24134177