From owner-freebsd-current@FreeBSD.ORG Sat Jan 26 05:20:04 2008 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 791A916A419 for ; Sat, 26 Jan 2008 05:20:04 +0000 (UTC) (envelope-from prvs=1911771df7=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (core6.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id BB0B013C442 for ; Sat, 26 Jan 2008 05:20:03 +0000 (UTC) (envelope-from prvs=1911771df7=killing@multiplay.co.uk) DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=multiplay.co.uk; s=Multiplay; t=1201323909; x=1201928709; q=dns/txt; h=Received: Message-ID:From:To:References:Subject:Date:MIME-Version: Content-Type:Content-Transfer-Encoding; bh=mIFumlgnsKzMuCKWbKQB4 A/AsT7NmYZiIxZv6/5pPvQ=; b=dq4okFmVIUVHZAWYta4VtKP9yRbsa1LT6Eja5 D50bCXm5jVYHUHYAI2qKNZl3/xav65ID7OxhuF66iMIxisADT43YVGqLETBHP0oN FMk10h5NT/xtGyzJIx6yqAyMklnRvOEecGGqJXB0jWMBl9YHUX5VqSeC9Moxq98e RYRNMU= X-Spam-Checker-Version: SpamAssassin 3.1.8 (2007-02-13) on mail1.multiplay.co.uk X-Spam-Level: X-Spam-Status: No, score=-14.7 required=6.0 tests=BAYES_00, USER_IN_WHITELIST, USER_IN_WHITELIST_TO autolearn=ham version=3.1.8 Received: from r2d2 by mail1.multiplay.co.uk (MDaemon PRO v9.6.3) with ESMTP id md50004937447.msg for ; Sat, 26 Jan 2008 05:05:08 +0000 Message-ID: <003001c85fd9$03ea2e40$b6db87d4@multiplay.co.uk> From: "Steven Hartland" To: "Chargen" , References: <292361ab0801252036g75df6800x3b799aedaed02bde@mail.gmail.com> Date: Sat, 26 Jan 2008 05:05:05 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Authenticated-Sender: Killing@multiplay.co.uk X-MDRemoteIP: 212.135.219.182 X-Return-Path: prvs=1911771df7=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-current@freebsd.org X-Spam-Processed: mail1.multiplay.co.uk, Sat, 26 Jan 2008 05:05:08 +0000 X-MDAV-Processed: mail1.multiplay.co.uk, Sat, 26 Jan 2008 05:05:09 +0000 Cc: Subject: Re: SMP kernels /w POLLING enabled - combination garbles(syncer?) console line message(s) on reboot 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: Sat, 26 Jan 2008 05:20:04 -0000 ----- Original Message ----- From: "Chargen" To: Sent: Saturday, January 26, 2008 4:36 AM Subject: 7cur: SMP kernels /w POLLING enabled - combination garbles(syncer?) console line message(s) on reboot > 7cur: SMP kernels /w POLLING enabled - combination garbles (syncer?) console > line message(s) on reboot > > SMP kernel with POLLING enabled garbles one or more of the last lines in > console after issuing the {reboot} command > > options DEVICE_POLLING > options HZ=1000 > > with or without sysctl -w kern.polling.enable=1 or sysctl -w > kern.polling.enable=0 > > The garbled lines are between 'shutting down bufdaemon' and 'all buffs > synced' (after 'bufdaemon', I presume these are the syncer, 'Syncing > disks, vnodes synced' lines) > > I found it only reproducable with SMP /apic enabled kernel. Console messages > after issuing reboot on UP kernels with polling_enabled are readable. > > Note: polling wasn't manually set on any device (tested on UP and SMP > kernels) e.g.: no ifconfig em0 polling Funny you should say that. Noticed that last night when rebooting one of our new 7.0 machines but assumed it was a one off remote console corruption. Just tested this again and its not. So I can confirm the corruption here on 7.0-PRERELEASE amd64 without polling. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.