From owner-freebsd-current@FreeBSD.ORG Tue Sep 14 21:11:16 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E5D2616A4CE for ; Tue, 14 Sep 2004 21:11:16 +0000 (GMT) Received: from hanoi.cronyx.ru (hanoi.cronyx.ru [144.206.181.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1E33F43D53 for ; Tue, 14 Sep 2004 21:11:16 +0000 (GMT) (envelope-from rik@cronyx.ru) Received: (from root@localhost) by hanoi.cronyx.ru id i8EL87D2069729 for current@freebsd.org.checked; (8.12.8/vak/2.1) Wed, 15 Sep 2004 01:08:07 +0400 (MSD) (envelope-from rik@cronyx.ru) Received: from cronyx.ru (hanoi.cronyx.ru [144.206.181.53]) by hanoi.cronyx.ru with ESMTP id i8EL5Io1069619; (8.12.8/vak/2.1) Wed, 15 Sep 2004 01:05:18 +0400 (MSD) (envelope-from rik@cronyx.ru) Message-ID: <41475B46.8030002@cronyx.ru> Date: Wed, 15 Sep 2004 00:57:42 +0400 From: Roman Kurakin User-Agent: Mozilla/5.0 (X11; U; Linux i686; ru-RU; rv:1.2.1) Gecko/20030426 X-Accept-Language: ru-ru, en MIME-Version: 1.0 To: Scott Long References: <414560D3.10108@cronyx.ru> <20040913105133.GA85717@hub.freebsd.org> <414581FE.6060702@cronyx.ru> <4145BB0D.20905@samsco.org> In-Reply-To: <4145BB0D.20905@samsco.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: current@freebsd.org Subject: Re: Large mem disk with not very recent current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 14 Sep 2004 21:11:17 -0000 Scott Long wrote: > Roman Kurakin wrote: > >> Kris Kennaway wrote: >> >>> On Mon, Sep 13, 2004 at 12:56:51PM +0400, Roman Kurakin wrote: >>> >>>> Hi, >>>> >>>> I have the following idea/problem. I want to build world in memory. >>>> I've put in to my system 1G of memory and tried to put on it sources. >>>> But all times I've tried to do that system went to panic. I've used md >>>> with malloc type. >>>> >>>> Any ideas? >>>> >>> >>> >>> Please provide more information. It's likely you're trying to create >>> a md that is too big, though. >>> >> It is about 800Mb. But system panics while I try to extract source >> tree. It is not very recent >> current. The intent of my question was to get some hints how to set >> up such build area, I >> belive it should help to make compilation much faster than using hard >> drive. My home system >> is not ready for panic investigation now. I'll update it to current >> and set console to it and will >> try again. >> >> >> PS. Sorry to all for my last posts to current that are so weak in >> "technical" details, the debug >> technique I used before was without remote debugging since most of >> problems were very >> near my code and it was enough for me anlo three things: my mind, >> printed sources, and printf. >> So now I am in stage of adaptation to/setting up remote debugging. >> >> rik > > > What kind of panic was it? Try using swap backing instead of malloc. kmem_map too small. > Malloc will consume wired memory and will generally make life difficult > for other parts of the kernel that need memory later. Swap-backed pages > will stay in RAM until the VM needs to push them out due to memory > pressure. Ok. I'll try to try this this night. Thanks. rik > Scott > >