From owner-cvs-src@FreeBSD.ORG Wed Apr 12 22:07:52 2006 Return-Path: X-Original-To: cvs-src@freebsd.org Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 72B8516A403; Wed, 12 Apr 2006 22:07:52 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (vc4-2-0-87.dsl.netrack.net [199.45.160.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id 79A9143D8E; Wed, 12 Apr 2006 22:07:46 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost.village.org [127.0.0.1] (may be forged)) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k3CM5fWo084326; Wed, 12 Apr 2006 16:05:41 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Wed, 12 Apr 2006 16:05:52 -0600 (MDT) Message-Id: <20060412.160552.35796990.imp@bsdimp.com> To: brueffer@freebsd.org From: "M. Warner Losh" In-Reply-To: <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> References: <200603300425.k2U4PjJH099559@repoman.freebsd.org> <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/pccbb pccbb.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2006 22:07:52 -0000 In message: <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> Christian Brueffer writes: : On Thu, Mar 30, 2006 at 04:25:45AM +0000, Warner Losh wrote: : > imp 2006-03-30 04:25:45 UTC : > : > FreeBSD src repository : > : > Modified files: : > sys/dev/pccbb pccbb.c : > Log: : > On some laptops, under very high loads, the socket event register read : > in the ISR doesn't read the actual socket event register, but instead : > reads garbage (usually 0xffffffff, but other times other things). : > This totally violates the PCI spec, but happens rarely enough that a : > workaround is in order. This adds one test when we have a real : > interrupt to service (which is very rare), and doesn't affect the : > usualy 'nothing to see here' case at all. : > : > Problem reported by many, but sam@ gave me this workaround after : > diagnosing the problem. : > : : This breaks pccard/cardbus support on my Thinkpad T41p (confirmed by : backing this change out). With this change, I just get an "Interrupt : storm detected on irq 5; throttling" message. : : What kind of debug info can I provide? A Thinkpad T41p. :-) Failing that, can you set hw.cbb.debug=1 and provide me with the output. Warner