From owner-svn-src-all@FreeBSD.ORG Tue Jan 26 13:15:38 2010 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D569C106566C; Tue, 26 Jan 2010 13:15:38 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id 548FD8FC1C; Tue, 26 Jan 2010 13:15:38 +0000 (UTC) Received: from outgoing.leidinger.net (pD954F11F.dip.t-dialin.net [217.84.241.31]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id 82693844021; Tue, 26 Jan 2010 14:15:31 +0100 (CET) Received: from webmail.leidinger.net (webmail.leidinger.net [192.168.1.102]) by outgoing.leidinger.net (Postfix) with ESMTP id 4D760A7B30; Tue, 26 Jan 2010 14:15:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=Leidinger.net; s=outgoing-alex; t=1264511727; bh=27na4nbYKr0t48Dtft/9VUjFC3cfZkZIauq3e2ibOSo=; h=Message-ID:Date:From:To:Cc:Subject:References:In-Reply-To: MIME-Version:Content-Type:Content-Transfer-Encoding; b=BnlpOXX90cNCubKYoNngZOufNybHx7SgKB6fxnvBiYSCjr2UmBZz3pzw0IEfyYo0G Xwm9NVc42ZtUoPzR92KbPlmH4djQwaJ7t53VozDyIMs0O8iQUMPS7p5duSm++2VVhU hZmqh+BtAi/vVfG86EDYBp5ifOrcUma/o8BlJljIHe+/7ZcsflLY6IORNqL9Yj2cW3 phCTEhXOaE2/yLX7hMyW3ed1oAGTk9wZI40hqKY7FYHuGSB42zuVYNlet1ZeT/5lcM zeAUY2EWuO7Di+5/7BEcde6iChdfImQn4TvkX925Ui0t507XrU2ssXNyX417FefclB kiQ2Fli4XD6Tg== Received: (from www@localhost) by webmail.leidinger.net (8.14.3/8.13.8/Submit) id o0QDFQAZ015226; Tue, 26 Jan 2010 14:15:26 +0100 (CET) (envelope-from Alexander@Leidinger.net) Received: from pslux.cec.eu.int (pslux.cec.eu.int [158.169.9.14]) by webmail.leidinger.net (Horde Framework) with HTTP; Tue, 26 Jan 2010 14:15:25 +0100 Message-ID: <20100126141525.10365e5dzlk7jc4k@webmail.leidinger.net> Date: Tue, 26 Jan 2010 14:15:25 +0100 From: Alexander Leidinger To: John Baldwin References: <201001231842.o0NIgSa5086957@svn.freebsd.org> <201001250757.49334.jhb@freebsd.org> In-Reply-To: <201001250757.49334.jhb@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Dynamic Internet Messaging Program (DIMP) H3 (1.1.4) X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: 82693844021.65CF3 X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-0.763, required 6, autolearn=disabled, ALL_TRUSTED -1.44, DKIM_SIGNED 0.00, DKIM_VERIFIED -0.00, J_CHICKENPOX_24 0.60, TW_SV 0.08) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1265116533.20612@adcVd23LYyIOo2v7U2b84g X-EBL-Spam-Status: No Cc: Alan Cox , svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r202894 - in head/sys/i386: i386 include X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jan 2010 13:15:39 -0000 Quoting John Baldwin (from Mon, 25 Jan 2010 07:57:49 -0500): > On Saturday 23 January 2010 1:42:28 pm Alan Cox wrote: >> Author: alc >> Date: Sat Jan 23 18:42:28 2010 >> New Revision: 202894 >> URL: http://svn.freebsd.org/changeset/base/202894 >> >> Log: >> Handle a race between pmap_kextract() and pmap_promote_pde(). >> This race is >> known to cause a kernel crash in ZFS on i386 when superpage promotion is >> enabled. >> >> Tested by: netchild >> MFC after: 1 week > > Yay! Should we enable pg_ps by default on i386 now? Data point, the i386 system where I have superpages enabled is a p4 with currently 11 jails active. Some webservers, squid, samba, bind, postfix and a lot of portupgrades (during the last days, I'm updating a jail with a desktop-setup inside). All jails are on ZFS. # uptime 2:01pm up 3 days, 21:52, 2 users, load averages: 1.34, 1.14, 1.09 It is not more because I switched to ATA_CAM after more than a day of uptime with the code of this commit. # sysctl vm.pmap vm.pmap.pmap_collect_active: 0 vm.pmap.pmap_collect_inactive: 0 vm.pmap.pv_entry_spare: 54584 vm.pmap.pv_entry_allocs: 504637278 vm.pmap.pv_entry_frees: 504575270 vm.pmap.pc_chunk_tryfail: 0 vm.pmap.pc_chunk_frees: 22566325 vm.pmap.pc_chunk_allocs: 22566672 vm.pmap.pc_chunk_count: 347 vm.pmap.pv_entry_count: 62008 vm.pmap.pde.promotions: 2080074 vm.pmap.pde.p_failures: 22736249 vm.pmap.pde.mappings: 0 vm.pmap.pde.demotions: 2080038 vm.pmap.shpgperproc: 200 vm.pmap.pv_entry_max: 1487136 vm.pmap.pg_ps_enabled: 1 Bye, Alexander. -- When eating an elephant take one bite at a time. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137