From owner-freebsd-stable@FreeBSD.ORG Wed Feb 6 19:21:30 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9073616A46C for ; Wed, 6 Feb 2008 19:21:30 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from mail-out3.apple.com (mail-out3.apple.com [17.254.13.22]) by mx1.freebsd.org (Postfix) with ESMTP id 5A32713C44B for ; Wed, 6 Feb 2008 19:21:30 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from relay13.apple.com (relay13.apple.com [17.128.113.29]) by mail-out3.apple.com (Postfix) with ESMTP id 3229B205EDAF; Wed, 6 Feb 2008 11:21:30 -0800 (PST) Received: from relay13.apple.com (unknown [127.0.0.1]) by relay13.apple.com (Symantec Mail Security) with ESMTP id 1EF2028083; Wed, 6 Feb 2008 11:21:30 -0800 (PST) X-AuditID: 1180711d-9d3edbb000001e9b-85-47aa08bab324 Received: from cswiger1.apple.com (cswiger1.apple.com [17.214.13.96]) by relay13.apple.com (Apple SCV relay) with ESMTP id F095528082; Wed, 6 Feb 2008 11:21:29 -0800 (PST) Message-Id: <7872AB6E-21DA-4E2D-93C0-D07CFA3A7E47@mac.com> From: Chuck Swiger To: Dominic Fandrey In-Reply-To: <47AA0696.5020109@bsdforen.de> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v915) Date: Wed, 6 Feb 2008 11:21:29 -0800 References: <47A9F835.1060200@bsdforen.de> <47AA0696.5020109@bsdforen.de> X-Mailer: Apple Mail (2.915) X-Brightmail-Tracker: AAAAAA== Cc: freebsd-stable@freebsd.org Subject: Re: RELENG_7: interrupt eating whole cpu core X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Feb 2008 19:21:30 -0000 Hi, Dominic-- On Feb 6, 2008, at 11:12 AM, Dominic Fandrey wrote: >> behaviour has changed. This is an HP 6510b GR695EA#ABD, if anyone >> thinks it might be helpful, I can supply you with a dmesg and the >> output of pciconf -lv. > > The problem remains with fresh sources: > > PID USERNAME THR PRI NICE SIZE RES STATE C TIME CPU > COMMAND > 12 root 1 171 ki31 0K 16K RUN 0 22:04 97.85% > idle: cpu0 > 37 root 1 -64 - 0K 16K CPU1 1 2:35 96.00% > irq14: ata0 > 11 root 1 171 ki31 0K 16K RUN 1 19:32 6.40% > idle: cpu1 > > The rip is done by k3b, so the drive is accessed through the cam > interface. What are the values being reported by "sysctl hw.ata"? If you're going to be burning CD/DVDs, you really want to make sure hw.ata.atapi_dma is on. Regards, -- -Chuck