From owner-freebsd-current@FreeBSD.ORG Sat Jan 17 09:50:40 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 5372816A4CE for ; Sat, 17 Jan 2004 09:50:40 -0800 (PST) Received: from herbelot.dyndns.org (herbelot.net1.nerim.net [62.212.117.213]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9368443D2F for ; Sat, 17 Jan 2004 09:50:37 -0800 (PST) (envelope-from thierry@herbelot.com) Received: from diversion.herbelot.nom (diversion.herbelot.nom [192.168.2.6]) by herbelot.dyndns.org (8.12.10/8.12.10) with ESMTP id i0HHnS0w031526; Sat, 17 Jan 2004 18:49:29 +0100 (CET) From: Thierry Herbelot To: Peter Wood , freebsd-current@freebsd.org Date: Sat, 17 Jan 2004 18:50:15 +0100 User-Agent: KMail/1.5.4 References: In-Reply-To: X-Warning: Windows can lose your files X-Op-Sys: Le FriBi de la mort qui tue X-Org: TfH&Co X-MailScanner: Found to be clean MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200401171850.15746.thierry@herbelot.com> Subject: Re: FreeBSD 5.2R+C: panic: kmem_malloc(4096): kmem_map too small X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: thierry@herbelot.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Jan 2004 17:50:40 -0000 Le Saturday 17 January 2004 18:25, Peter Wood a écrit : > Good Evening, > > I have come accross a reproducable panic in bother 5.2-Release and > 5.2-Current (as it was an hour ago). To perform this, I create two 750Mb > memory disks, format them and mount them. The machine has 2Gb of RAM, of > which no more then 90mb is active. Hello, from what I've gathered, the md disks are allocated from the kernel address space, which is limited (see the line with "options KVA_PAGES=260" in the NOTES kernel config file). Anyway, on ia32, the 4GB address space has to be sahred between kernel and processes : let's go to the AMD64 ! I could recently make a RAM disk for "making buildworld", with a KVA_PAGES of 512, an installed RAM of 2G and disks of 500MB for src and 700MB for objs. TfH