Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755938Ab3DWPCu (ORCPT ); Tue, 23 Apr 2013 11:02:50 -0400 Received: from e7.ny.us.ibm.com ([32.97.182.137]:52455 "EHLO e7.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755261Ab3DWPCt (ORCPT ); Tue, 23 Apr 2013 11:02:49 -0400 Date: Tue, 23 Apr 2013 08:01:39 -0700 From: "Paul E. McKenney" To: Thomas Gleixner Cc: Borislav Petkov , Takashi Iwai , x86-ml , lkml , Len Brown Subject: Re: irq 16: nobody cared Message-ID: <20130423150138.GA3427@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20130421103403.GA4594@pd.tnic> <20130421163002.GB3509@linux.vnet.ibm.com> <20130422091310.GA4637@pd.tnic> <20130422142356.GA4658@pd.tnic> <20130422144402.GK3509@linux.vnet.ibm.com> <20130422213303.GB4415@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13042315-5806-0000-0000-000020D62240 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1223 Lines: 36 On Tue, Apr 23, 2013 at 04:10:22PM +0200, Thomas Gleixner wrote: > On Mon, 22 Apr 2013, Borislav Petkov wrote: > > [ 1449.134864] ACPI: Preparing to enter system sleep state S5 > > [ 1449.141054] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored > > and right after that the spurious interrupt happens. I asked Boris to > boot with acpi_osi=Linux on the command line and the issue went > away, though now it complains right before shutdown about: > > [ 123.142377] do_IRQ: 2.179 No irq handler for vector (irq -1) > > I wouldn't be surprised if that vector 179 was previously used for > irq16. > > Without acpi_osi=Linux the BIOS manages to put the hardware into a > state which causes an interrupt to be sent from thin air. > > We should have an annual "Brain Is Obviously Superfluous" award. > This one would be high up on the nomination list. Yow!!! Many thanks to you and Borislav for tracking this down!!! Thanx, Paul > Yours grumpy > > tglx > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/