From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932420AbWFYRg4 (ORCPT ); Sun, 25 Jun 2006 13:36:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932430AbWFYRg4 (ORCPT ); Sun, 25 Jun 2006 13:36:56 -0400 Received: from www.osadl.org ([213.239.205.134]:23976 "EHLO mail.tglx.de") by vger.kernel.org with ESMTP id S932420AbWFYRgz (ORCPT ); Sun, 25 Jun 2006 13:36:55 -0400 Subject: Re: Problem with 2.6.17-mm2 From: Thomas Gleixner Reply-To: tglx@linutronix.de To: Andrew Morton Cc: Ralf.Hildebrandt@charite.de, linux-kernel@vger.kernel.org, mingo@elte.hu In-Reply-To: <20060625103246.a309d67b.akpm@osdl.org> References: <20060625103523.GY27143@charite.de> <20060625034913.315755ae.akpm@osdl.org> <1151256246.25491.398.camel@localhost.localdomain> <20060625103246.a309d67b.akpm@osdl.org> Content-Type: text/plain Date: Sun, 25 Jun 2006 19:38:42 +0200 Message-Id: <1151257123.25491.404.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2006-06-25 at 10:32 -0700, Andrew Morton wrote: > > So in fact this just silently acks spurious interrupts which have an > > hw_irq_controller assigned. If there is no action, then nothing has > > called setup_irq/request_irq for this interrupt line and therefor it is > > an spurious interrupt which should not happen. > > > > > > genirq makes these visible and informs noisily about those events. > > > > hm, OK. I guess we can let it ride for now. Later we can decide whether > we need to shut that warning up. I suspect we should, if the machine's > working OK. We can make it once per IRQ. In fact I think the original behaviour is a BUG. You have no chance to notice that your box gets flooded by such interrupts. With my willingly asserted spurious interrupts the box simply stalls in a flood of interrupts without any notice. tglx