From owner-freebsd-questions@FreeBSD.ORG Sun May 17 08:12:06 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id ED5C8106566C for ; Sun, 17 May 2009 08:12:06 +0000 (UTC) (envelope-from perryh@pluto.rain.com) Received: from agora.rdrop.com (agora.rdrop.com [199.26.172.34]) by mx1.freebsd.org (Postfix) with ESMTP id C5E118FC08 for ; Sun, 17 May 2009 08:12:06 +0000 (UTC) (envelope-from perryh@pluto.rain.com) Received: from agora.rdrop.com (66@localhost [127.0.0.1]) by agora.rdrop.com (8.13.1/8.12.7) with ESMTP id n4H8C6JV094443 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sun, 17 May 2009 01:12:06 -0700 (PDT) (envelope-from perryh@pluto.rain.com) Received: (from uucp@localhost) by agora.rdrop.com (8.13.1/8.12.9/Submit) with UUCP id n4H8C5oV094442; Sun, 17 May 2009 01:12:05 -0700 (PDT) Received: from fbsd61 by pluto.rain.com (4.1/SMI-4.1-pluto-M2060407) id AA00742; Sun, 17 May 09 01:08:50 PDT Date: Sun, 17 May 2009 01:08:28 -0700 From: perryh@pluto.rain.com To: ns@got2get.net, onemda@gmail.com Message-Id: <4a0fc5fc.bOMfTN1TTNmicvIB%perryh@pluto.rain.com> References: <4a04702a.ZaIfHAUzw/YexVK2%perryh@pluto.rain.com> <3a142e750905090746g5324d8ffl1ea10645c0e5f45c@mail.gmail.com> <4a05f963.OI3CMfJ3/j2hbi4D%perryh@pluto.rain.com> <3a142e750905100452s73aa391bjcdc8fea49636ee37@mail.gmail.com> <4a070969.mYZsiV8emLhJVvVg%perryh@pluto.rain.com> <23481884.post@talk.nabble.com> In-Reply-To: <23481884.post@talk.nabble.com> User-Agent: nail 11.25 7/29/05 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: how to fix "interrupt storm" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 May 2009 08:12:07 -0000 Nicolais wrote: > PerryH-2 wrote: > > There are no USB devices connected. I think those must actually > > be atapci1 interrupts, since irq9 is where dmesg reported it. > > I think this could be related to previous issues on same topic. > I don't recall the thread titles, but the solution is located here: > > http://confighell.com/FreeBSD#How_to_get_rid_of_interrupt_storm_atapci0_and_others_ > > I hope it can solve things out for you as well. It does not seem to be the solution in this case. (Apologies for the delay; this machine turned out to be a bit under-resourced for kernel building, and meanwhile life got in the way.) So, I am back to asking what changes or additions to make in /boot/device.hints. I suppose I need to move either uhci0 or atapci1 off of the (currently shared) irq9 to an unused irq, but I'm not finding it immediately evident how to do that. For the archives, in case the referenced page goes away in the future, it suggests adding options KDB options KDB_UNATTENDED options DDB to the kernel. This is reported to have caused an interrupt storm, involving an atapci controller on an amd64 system, to go away.