From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from de01egw02.freescale.net (de01egw02.freescale.net [192.88.165.103]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "de01egw02.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 85F53DE39A for ; Wed, 23 Apr 2008 04:52:55 +1000 (EST) Received: from de01smr01.freescale.net (de01smr01.freescale.net [10.208.0.31]) by de01egw02.freescale.net (8.12.11/de01egw02) with ESMTP id m3MIqihL015258 for ; Tue, 22 Apr 2008 11:52:45 -0700 (MST) Received: from ld0162-tx32.am.freescale.net (ld0162-tx32.am.freescale.net [10.82.19.112]) by de01smr01.freescale.net (8.13.1/8.13.0) with ESMTP id m3MIqi40028772 for ; Tue, 22 Apr 2008 13:52:44 -0500 (CDT) Date: Tue, 22 Apr 2008 13:52:44 -0500 From: Scott Wood To: Andre Schwarz Subject: Re: Question on MPC83xx interrupts Message-ID: <20080422185244.GA20229@ld0162-tx32.am.freescale.net> References: <480E1939.6000701@matrix-vision.de> <20080422172306.GA17992@ld0162-tx32.am.freescale.net> <480E2230.2030601@matrix-vision.de> <20080422174208.GB18076@ld0162-tx32.am.freescale.net> <480E33AB.5050904@matrix-vision.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <480E33AB.5050904@matrix-vision.de> Cc: linux-ppc list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Apr 22, 2008 at 08:51:23PM +0200, Andre Schwarz wrote: > Scott Wood schrieb: > >On Tue, Apr 22, 2008 at 07:36:48PM +0200, Andre Schwarz wrote: > > > >>thanks - any Idea how to figure out where the BAD comes from ? > >>Is it simply an unhandled/unacked one ? > >> > > > >It generally happens when an interrupt is requested, and the core > >takes > >the exception, but then the interrupt source deasserts itself. > > > >-Scott > So this is not bad at all if you have a device with self-clearing > interrupts ... Right, as long as you don't get too many of them I wouldn't worry. -Scott