Date: Fri, 15 Mar 2013 16:37:56 +0100 (CET)
From: Jiri Kosina <jkosina@suse.cz>
To: Greg KH <greg@kroah.com>
Cc: Harald Arnesen <skogtun.linux@gmail.com>,
        Kernel development list <linux-kernel@vger.kernel.org>,
        "Rafael J. Wysocki" <rjw@sisk.pl>,
        Peter Hurley <peter@hurleysoftware.com>,
        Alan Stern <stern@rowland.harvard.edu>, Thomas Meyer <thomas@m3y3r.de>,
        Shawn Starr <shawn.starr@rogers.com>,
        USB list <linux-usb@vger.kernel.org>, linux-acpi@vger.kernel.org,
        Bjorn Helgaas <bhelgaas@google.com>, linux-pci@vger.kernel.org,
        Yinghai Lu <yinghai@kernel.org>,
        Daniel Vetter <daniel.vetter@ffwll.ch>,
        Imre Deak <imre.deak@intel.com>, Daniel Kurtz <djkurtz@chromium.org>,
        dri-devel@lists.freedesktop.org
Subject: Re: [3.9-rc1] irq 16: nobody cared  (was [3.9-rc1] very poor interrupt
 responses)
In-Reply-To: <20130315153249.GA32425@kroah.com>
Message-ID: <alpine.LNX.2.00.1303151636481.9529@pobox.suse.cz>
References: <Pine.LNX.4.44L0.1303141050310.1983-100000@iolanthe.rowland.org> <1460519.ejNFI1DrGk@vostro.rjw.lan> <1363280764.26318.4.camel@thor.lan> <5657408.cYX6iimiA4@vostro.rjw.lan> <alpine.LNX.2.00.1303150851020.9529@pobox.suse.cz> <5142E7F0.4020002@gmail.com>
 <alpine.LNX.2.00.1303151424140.9529@pobox.suse.cz> <20130315153249.GA32425@kroah.com>
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On Fri, 15 Mar 2013, Greg KH wrote:

> > > I have the same problem on my Lenovo T500. I think the graphics card is
> > > involved.
> > > 
> > > This laptop has "hybrid graphics" - one Intel GMA 4500MHD and one ATI
> > > Mobility Radeon HD 3650. When I boot with the Intel card, I get "irq 16:
> > > nobody cared" during boot, not when I boot with the ATI card.
> > 
> > Confirming this. After a lot of hassle, I have bisected this reliably to
> > 
> > 	commit 28c70f162a315bdcfbe0bf940a740ef8bfb918d6
> > 	Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> > 	Date:   Sat Dec 1 13:53:45 2012 +0100
> > 
> > 	    drm/i915: use the gmbus irq for waits
> > 
> > Adding Daniel, Imre and Daniel to CC while I will try to figure out what's 
> > happening in parallel.
> 
> Wasn't this fixed by the merge from David
> (2cc79544bd0aabb4b3cf467ead5df526d9134c64)?

Why do you think it should, please?

(I am seeing this with a2362d247 still).

-- 
Jiri Kosina
SUSE Labs
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