From owner-freebsd-current@FreeBSD.ORG Wed Feb 11 13:37:31 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 B42A216A4CE for ; Wed, 11 Feb 2004 13:37:31 -0800 (PST) Received: from mail1.speakeasy.net (mail1.speakeasy.net [216.254.0.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9D63043D1D for ; Wed, 11 Feb 2004 13:37:31 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 24139 invoked from network); 11 Feb 2004 21:37:31 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 11 Feb 2004 21:37:31 -0000 Received: from 10.50.40.205 (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.10/8.12.10) with ESMTP id i1BLbQM0095936; Wed, 11 Feb 2004 16:37:27 -0500 (EST) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: "Petr Holub" , "Dag-Erling Smrrgrav" Date: Wed, 11 Feb 2004 16:16:49 -0500 User-Agent: KMail/1.5.4 References: <02fe01c3f0e2$95087360$2136fb93@kloboucek> In-Reply-To: <02fe01c3f0e2$95087360$2136fb93@kloboucek> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200402111616.49108.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) cc: current@FreeBSD.org Subject: Re: storm of stray interrupts 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: Wed, 11 Feb 2004 21:37:31 -0000 On Wednesday 11 February 2004 04:04 pm, Petr Holub wrote: > > Wrong, his BIOS just sucks and doesn't provide info on how to route > > drm0's interrupt when using ACPI. drm0 is routed to IRQ 16, but we end > > up using the ATPIC interrupt 11 to try and route it instead due to his > > broken BIOS. Since PCI interrupts are level triggered, this means that > > as soon as drm0 interrupts, it storms on IRQ 16 since drm0's ISR never > > gets called. > > OK---thanks. I've disabled ACPI (since disabling APIC results in loss of > SMP) and it works fine (except for no virtual hyperthreaded processors). > BTW: would it be possible to make drm use IRQ 16 by hinting (e.g. in > device.hints)? Not currently, no. If you have HTT enabled in your BIOS, you can use the MPTABLE_FORCE_HTT kernel option to get your virtual processors back. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org