From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261454AbUKIGHY (ORCPT ); Tue, 9 Nov 2004 01:07:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261397AbUKIGAn (ORCPT ); Tue, 9 Nov 2004 01:00:43 -0500 Received: from fmr12.intel.com ([134.134.136.15]:24198 "EHLO orsfmr001.jf.intel.com") by vger.kernel.org with ESMTP id S261405AbUKIFnF (ORCPT ); Tue, 9 Nov 2004 00:43:05 -0500 Subject: Re: Spurious interrupts when SCI shared with e100 From: Len Brown To: "Udo A. Steinberg" Cc: Linux Kernel Mailing List , ganesh.venkatesan@intel.com, John Ronciak In-Reply-To: <20041108115955.1c8bf10f.us15@os.inf.tu-dresden.de> References: <20041108115955.1c8bf10f.us15@os.inf.tu-dresden.de> Content-Type: text/plain Organization: Message-Id: <1099978966.6092.36.camel@d845pe> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.3 Date: 09 Nov 2004 00:42:46 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2004-11-08 at 05:59, Udo A. Steinberg wrote: > My laptop has IRQ9 configured as ACPI SCI. When IRQ9 is shared between > ACPI and e100 an IRQ9 storm occurs when e100 is enabled, as can be > seen in the dmesg output below. Is this new with 2.6.10-rc1, or has it always been broken in an ACPI-enabled kernel with acpi sharing an irq with e100? I suspect this may be a bug in the e100 -- it may have enabled interrupts before it has registered a handler. Assuming it is a receive interrupt, you may be able to verify this by plugging in the network cable after the system has probed e100 and see if it works normally after that. Also, you might try out the eepro100 driver to see if it behaves any differently. thanks, -Len