Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754062Ab3CTXh2 (ORCPT ); Wed, 20 Mar 2013 19:37:28 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:56235 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753585Ab3CTXhZ (ORCPT ); Wed, 20 Mar 2013 19:37:25 -0400 X-Sasl-enc: JyL0OLC/k72TfmYTF8azx9zOeJtvaZ0aKPnS1AkW+m+p 1363822644 Date: Wed, 20 Mar 2013 16:37:23 -0700 From: Greg KH To: Jiri Kosina Cc: Alan Stern , Daniel Vetter , Chris Wilson , Harald Arnesen , Kernel development list , "Rafael J. Wysocki" , Peter Hurley , Thomas Meyer , Shawn Starr , USB list , linux-acpi@vger.kernel.org, Bjorn Helgaas , linux-pci@vger.kernel.org, Yinghai Lu , Imre Deak , Daniel Kurtz , dri-devel@lists.freedesktop.org, Thomas Gleixner , "H. Peter Anvin" , x86@kernel.org, Arkadiusz Miskiewicz Subject: Re: [PATCH] dummy-irq: introduce a dummy IRQ handler driver (was Re: gm45 intel gfx can generate non-MSI irq# in MSI mode (was Re: [PATCH] drm/i915: stop using GMBUS IRQs on Gen4 chips (was Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt respo)) Message-ID: <20130320233723.GA4156@kroah.com> References: 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) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1317 Lines: 36 On Thu, Mar 21, 2013 at 12:21:21AM +0100, Jiri Kosina wrote: > On Wed, 20 Mar 2013, Alan Stern wrote: > > > > Ok, so how about this? > > > Daniel, is it enough to make the problem appear on your system (by > > > building this into the kernel and booting with dummy-irq.irq=16)? > > > > > > Thanks. > > > > > > From: Jiri Kosina > > > Subject: [PATCH] dummy-irq: introduce a dummy IRQ handler driver > > > > > > This module accepts a single 'irq' parameter, which it should register for. > > > > > > Its sole purpose is to help with debugging of IRQ sharing problems, by > > > force-enabling IRQ that would otherwise be disabled. > > > > > > Suggested-by: Alan Stern > > > Signed-off-by: Jiri Kosina > > > > This is just what I was thinking of. Three extremely minor > > suggestions... > > Thanks Alan. Updated version below. > > Greg, willing to merge this simple debugging facility? Yes, I'll take it, give me a few days to catch up with my pending queue, don't worry, it's not lost. greg k-h -- 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/